Cochlear Implants: Electronic hearing devices typically used for patients with normal outer and middle ear function, but defective inner ear function. In the COCHLEA, the hair cells (HAIR CELLS, VESTIBULAR) may be absent or damaged but there are residual nerve fibers. The device electrically stimulates the COCHLEAR NERVE to create sound sensation.Cochlear Implantation: Surgical insertion of an electronic hearing device (COCHLEAR IMPLANTS) with electrodes to the COCHLEAR NERVE in the inner ear to create sound sensation in patients with residual nerve fibers.Deafness: A general term for the complete loss of the ability to hear from both ears.Speech Perception: The process whereby an utterance is decoded into a representation in terms of linguistic units (sequences of phonetic segments which combine to form lexical and grammatical morphemes).Correction of Hearing Impairment: Procedures for correcting HEARING DISORDERS.Hearing Loss, Bilateral: Partial hearing loss in both ears.Persons With Hearing Impairments: Persons with any degree of loss of hearing that has an impact on their activities of daily living or that requires special assistance or intervention.Dental Implants: Biocompatible materials placed into (endosseous) or onto (subperiosteal) the jawbone to support a crown, bridge, or artificial tooth, or to stabilize a diseased tooth.Speech Intelligibility: Ability to make speech sounds that are recognizable.Speech Discrimination Tests: Tests of the ability to hear and understand speech as determined by scoring the number of words in a word list repeated correctly.Auditory Threshold: The audibility limit of discriminating sound intensity and pitch.Loudness Perception: The perceived attribute of a sound which corresponds to the physical attribute of intensity.Psychoacoustics: The science pertaining to the interrelationship of psychologic phenomena and the individual's response to the physical properties of sound.Hearing Loss: A general term for the complete or partial loss of the ability to hear from one or both ears.Hearing Aids: Wearable sound-amplifying devices that are intended to compensate for impaired hearing. These generic devices include air-conduction hearing aids and bone-conduction hearing aids. (UMDNS, 1999)Acoustic Stimulation: Use of sound to elicit a response in the nervous system.Audiometry, Speech: Measurement of the ability to hear speech under various conditions of intensity and noise interference using sound-field as well as earphones and bone oscillators.Speech Reception Threshold Test: A test to determine the lowest sound intensity level at which fifty percent or more of the spondaic test words (words of two syllables having equal stress) are repeated correctly.Pitch Perception: A dimension of auditory sensation varying with cycles per second of the sound stimulus.Prostheses and Implants: Artificial substitutes for body parts, and materials inserted into tissue for functional, cosmetic, or therapeutic purposes. Prostheses can be functional, as in the case of artificial arms and legs, or cosmetic, as in the case of an artificial eye. Implants, all surgically inserted or grafted into the body, tend to be used therapeutically. IMPLANTS, EXPERIMENTAL is available for those used experimentally.Hearing: The ability or act of sensing and transducing ACOUSTIC STIMULATION to the CENTRAL NERVOUS SYSTEM. It is also called audition.Cochlear Nerve: The cochlear part of the 8th cranial nerve (VESTIBULOCOCHLEAR NERVE). The cochlear nerve fibers originate from neurons of the SPIRAL GANGLION and project peripherally to cochlear hair cells and centrally to the cochlear nuclei (COCHLEAR NUCLEUS) of the BRAIN STEM. They mediate the sense of hearing.Hearing Loss, Sensorineural: Hearing loss resulting from damage to the COCHLEA and the sensorineural elements which lie internally beyond the oval and round windows. These elements include the AUDITORY NERVE and its connections in the BRAINSTEM.Noise: Any sound which is unwanted or interferes with HEARING other sounds.Drug Implants: Small containers or pellets of a solid drug implanted in the body to achieve sustained release of the drug.Speech Acoustics: The acoustic aspects of speech in terms of frequency, intensity, and time.Language Development: The gradual expansion in complexity and meaning of symbols and sounds as perceived and interpreted by the individual through a maturational and learning process. Stages in development include babbling, cooing, word imitation with cognition, and use of short sentences.Speech: Communication through a system of conventional vocal symbols.Music: Sound that expresses emotion through rhythm, melody, and harmony.Speech Production Measurement: Measurement of parameters of the speech product such as vocal tone, loudness, pitch, voice quality, articulation, resonance, phonation, phonetic structure and prosody.Phonetics: The science or study of speech sounds and their production, transmission, and reception, and their analysis, classification, and transcription. (Random House Unabridged Dictionary, 2d ed)Perceptual Masking: The interference of one perceptual stimulus with another causing a decrease or lessening in perceptual effectiveness.Sound Spectrography: The graphic registration of the frequency and intensity of sounds, such as speech, infant crying, and animal vocalizations.Scala Tympani: The lower chamber of the COCHLEA, extending from the round window to the helicotrema (the opening at the apex that connects the PERILYMPH-filled spaces of scala tympani and SCALA VESTIBULI).Auditory Perception: The process whereby auditory stimuli are selected, organized, and interpreted by the organism.Audiometry: The testing of the acuity of the sense of hearing to determine the thresholds of the lowest intensity levels at which an individual can hear a set of tones. The frequencies between 125 and 8000 Hz are used to test air conduction thresholds and the frequencies between 250 and 4000 Hz are used to test bone conduction thresholds.Spiral Ganglion: The sensory ganglion of the COCHLEAR NERVE. The cells of the spiral ganglion send fibers peripherally to the cochlear hair cells and centrally to the COCHLEAR NUCLEI of the BRAIN STEM.Sound Localization: Ability to determine the specific location of a sound source.Prosthesis Design: The plan and delineation of prostheses in general or a specific prosthesis.Audiometry, Pure-Tone: Measurement of hearing based on the use of pure tones of various frequencies and intensities as auditory stimuli.Pitch Discrimination: The ability to differentiate tones.Cochlea: The part of the inner ear (LABYRINTH) that is concerned with hearing. It forms the anterior part of the labyrinth, as a snail-like structure that is situated almost horizontally anterior to the VESTIBULAR LABYRINTH.Breast Implants: Implants used to reconstruct and/or cosmetically enhance the female breast. They have an outer shell or envelope of silicone elastomer and are filled with either saline or silicone gel. The outer shell may be either smooth or textured.Implants, Experimental: Artificial substitutes for body parts and materials inserted into organisms during experimental studies.Temporal Bone: Either of a pair of compound bones forming the lateral (left and right) surfaces and base of the skull which contains the organs of hearing. It is a large bone formed by the fusion of parts: the squamous (the flattened anterior-superior part), the tympanic (the curved anterior-inferior part), the mastoid (the irregular posterior portion), and the petrous (the part at the base of the skull).Audiology: The study of hearing and hearing impairment.Child Language: The language and sounds expressed by a child at a particular maturational stage in development.Hearing Tests: Part of an ear examination that measures the ability of sound to reach the brain.Electrodes, Implanted: Surgically placed electric conductors through which ELECTRIC STIMULATION is delivered to or electrical activity is recorded from a specific point inside the body.Language Tests: Tests designed to assess language behavior and abilities. They include tests of vocabulary, comprehension, grammar and functional use of language, e.g., Development Sentence Scoring, Receptive-Expressive Emergent Language Scale, Parsons Language Sample, Utah Test of Language Development, Michigan Language Inventory and Verbal Language Development Scale, Illinois Test of Psycholinguistic Abilities, Northwestern Syntax Screening Test, Peabody Picture Vocabulary Test, Ammons Full-Range Picture Vocabulary Test, and Assessment of Children's Language Comprehension.Evoked Potentials, Auditory, Brain Stem: Electrical waves in the CEREBRAL CORTEX generated by BRAIN STEM structures in response to auditory click stimuli. These are found to be abnormal in many patients with CEREBELLOPONTINE ANGLE lesions, MULTIPLE SCLEROSIS, or other DEMYELINATING DISEASES.Pattern Recognition, Physiological: The analysis of a critical number of sensory stimuli or facts (the pattern) by physiological processes such as vision (PATTERN RECOGNITION, VISUAL), touch, or hearing.Signal Processing, Computer-Assisted: Computer-assisted processing of electric, ultrasonic, or electronic signals to interpret function and activity.Vocabulary: The sum or the stock of words used by a language, a group, or an individual. (From Webster, 3d ed)Dental Implantation, Endosseous: Insertion of an implant into the bone of the mandible or maxilla. The implant has an exposed head which protrudes through the mucosa and is a prosthodontic abutment.Hearing Loss, Central: Hearing loss due to disease of the AUDITORY PATHWAYS (in the CENTRAL NERVOUS SYSTEM) which originate in the COCHLEAR NUCLEI of the PONS and then ascend bilaterally to the MIDBRAIN, the THALAMUS, and then the AUDITORY CORTEX in the TEMPORAL LOBE. Bilateral lesions of the auditory pathways are usually required to cause central hearing loss. Cortical deafness refers to loss of hearing due to bilateral auditory cortex lesions. Unilateral BRAIN STEM lesions involving the cochlear nuclei may result in unilateral hearing loss.Lipreading: The process by which an observer comprehends speech by watching the movements of the speaker's lips without hearing the speaker's voice.Auditory Cortex: The region of the cerebral cortex that receives the auditory radiation from the MEDIAL GENICULATE BODY.Evoked Potentials, Auditory: The electric response evoked in the CEREBRAL CORTEX by ACOUSTIC STIMULATION or stimulation of the AUDITORY PATHWAYS.Language Arts: Skills in the use of language which lead to proficiency in written or spoken communication.Bionics: The study of systems, particularly electronic systems, which function after the manner of, in a manner characteristic of, or resembling living systems. Also, the science of applying biological techniques and principles to the design of electronic systems.Electric Stimulation: Use of electric potential or currents to elicit biological responses.Orbital Implants: Rounded objects made of coral, teflon, or alloplastic polymer and covered with sclera, and which are implanted in the orbit following enucleation. An artificial eye (EYE, ARTIFICIAL) is usually attached to the anterior of the orbital implant for cosmetic purposes.Communication Methods, Total: Utilization of all available receptive and expressive modes for the purpose of achieving communication with the hearing impaired, such as gestures, postures, facial expression, types of voice, formal speech and non-speech systems, and simultaneous communication.Round Window, Ear: Fenestra of the cochlea, an opening in the basal wall between the MIDDLE EAR and the INNER EAR, leading to the cochlea. It is closed by a secondary tympanic membrane.Voice: The sounds produced by humans by the passage of air through the LARYNX and over the VOCAL CORDS, and then modified by the resonance organs, the NASOPHARYNX, and the MOUTH.Dental Implants, Single-Tooth: Devices, usually alloplastic, surgically inserted into or onto the jawbone, which support a single prosthetic tooth and serve either as abutments or as cosmetic replacements for missing teeth.Deaf-Blind Disorders: The absence of both hearing and vision.Auditory Pathways: NEURAL PATHWAYS and connections within the CENTRAL NERVOUS SYSTEM, beginning at the hair cells of the ORGAN OF CORTI, continuing along the eighth cranial nerve, and terminating at the AUDITORY CORTEX.Acoustics: The branch of physics that deals with sound and sound waves. In medicine it is often applied in procedures in speech and hearing studies. With regard to the environment, it refers to the characteristics of a room, auditorium, theatre, building, etc. that determines the audibility or fidelity of sounds in it. (From Random House Unabridged Dictionary, 2d ed)Auditory Brain Stem Implants: Multi-channel hearing devices typically used for patients who have tumors on the COCHLEAR NERVE and are unable to benefit from COCHLEAR IMPLANTS after tumor surgery that severs the cochlear nerve. The device electrically stimulates the nerves of cochlea nucleus in the BRAIN STEM rather than the inner ear as in cochlear implants.Otologic Surgical Procedures: Surgery performed on the external, middle, or internal ear.Cues: Signals for an action; that specific portion of a perceptual field or pattern of stimuli to which a subject has learned to respond.Recognition (Psychology): The knowledge or perception that someone or something present has been previously encountered.Electrodes: Electric conductors through which electric currents enter or leave a medium, whether it be an electrolytic solution, solid, molten mass, gas, or vacuum.Time Perception: The ability to estimate periods of time lapsed or duration of time.Education of Hearing Disabled: The teaching or training of those individuals with hearing disability or impairment.Biomedical Technology: The application of technology to the solution of medical problems.Titanium: A dark-gray, metallic element of widespread distribution but occurring in small amounts; atomic number, 22; atomic weight, 47.90; symbol, Ti; specific gravity, 4.5; used for fixation of fractures. (Dorland, 28th ed)Dental Prosthesis, Implant-Supported: A prosthesis that gains its support, stability, and retention from a substructure that is implanted under the soft tissues of the basal seat of the device and is in contact with bone. (From Boucher's Clinical Dental Terminology, 4th ed)Absorbable Implants: Implants constructed of materials designed to be absorbed by the body without producing an immune response. They are usually composed of plastics and are frequently used in orthopedics and orthodontics.Hearing Loss, Unilateral: Partial or complete hearing loss in one ear.Magnets: Objects that produce a magnetic field.Language: A verbal or nonverbal means of communicating ideas or feelings.Linguistics: The science of language, including phonetics, phonology, morphology, syntax, semantics, pragmatics, and historical linguistics. (Random House Unabridged Dictionary, 2d ed)Hearing Disorders: Conditions that impair the transmission of auditory impulses and information from the level of the ear to the temporal cortices, including the sensorineural pathways.Diagnostic Techniques, Otological: Methods and procedures for the diagnosis of diseases of the ear or of hearing disorders or demonstration of hearing acuity or loss.Telemetry: Transmission of the readings of instruments to a remote location by means of wires, radio waves, or other means. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)Sign Language: A system of hand gestures used for communication by the deaf or by people speaking different languages.Dental Prosthesis Design: The plan and delineation of dental prostheses in general or a specific dental prosthesis. It does not include DENTURE DESIGN. The framework usually consists of metal.Vestibulocochlear Nerve Diseases: Pathological processes of the VESTIBULOCOCHLEAR NERVE, including the branches of COCHLEAR NERVE and VESTIBULAR NERVE. Common examples are VESTIBULAR NEURITIS, cochlear neuritis, and ACOUSTIC NEUROMA. Clinical signs are varying degree of HEARING LOSS; VERTIGO; and TINNITUS.Time Factors: Elements of limited time intervals, contributing to particular results or situations.Verbal Behavior: Includes both producing and responding to words, either written or spoken.Speech Articulation Tests: Tests of accuracy in pronouncing speech sounds, e.g., Iowa Pressure Articulation Test, Deep Test of Articulation, Templin-Darley Tests of Articulation, Goldman-Fristoe Test of Articulation, Screening Speech Articulation Test, Arizona Articulation Proficiency Scale.Cochlear Diseases: Pathological processes of the snail-like structure (COCHLEA) of the inner ear (LABYRINTH) which can involve its nervous tissue, blood vessels, or fluid (ENDOLYMPH).Inferior Colliculi: The posterior pair of the quadrigeminal bodies which contain centers for auditory function.Comprehension: The act or fact of grasping the meaning, nature, or importance of; understanding. (American Heritage Dictionary, 4th ed) Includes understanding by a patient or research subject of information disclosed orally or in writing.Socioenvironmental Therapy: Therapy whose primary emphasis is on the physical and social structuring of the environment to promote interpersonal relationships which will be influential in reducing behavioral disturbances of patients.ReadingProsthesis Fitting: The fitting and adjusting of artificial parts of the body. (From Stedman's, 26th ed)Equipment Design: Methods of creating machines and devices.Electronics, Medical: The research and development of ELECTRICAL EQUIPMENT AND SUPPLIES for such medical applications as diagnosis, therapy, research, anesthesia control, cardiac control, and surgery. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)Signal Detection, Psychological: Psychophysical technique that permits the estimation of the bias of the observer as well as detectability of the signal (i.e., stimulus) in any sensory modality. (From APA, Thesaurus of Psychological Index Terms, 8th ed.)Language Development Disorders: Conditions characterized by language abilities (comprehension and expression of speech and writing) that are below the expected level for a given age, generally in the absence of an intellectual impairment. These conditions may be associated with DEAFNESS; BRAIN DISEASES; MENTAL DISORDERS; or environmental factors.Analysis of Variance: A statistical technique that isolates and assesses the contributions of categorical independent variables to variation in the mean of a continuous dependent variable.Signal-To-Noise Ratio: The comparison of the quantity of meaningful data to the irrelevant or incorrect data.Discrimination (Psychology): Differential response to different stimuli.Treatment Outcome: Evaluation undertaken to assess the results or consequences of management and procedures used in combating disease in order to determine the efficacy, effectiveness, safety, and practicability of these interventions in individual cases or series.Reflex, Acoustic: Intra-aural contraction of tensor tympani and stapedius in response to sound.Audiometry, Evoked Response: A form of electrophysiologic audiometry in which an analog computer is included in the circuit to average out ongoing or spontaneous brain wave activity. A characteristic pattern of response to a sound stimulus may then become evident. Evoked response audiometry is known also as electric response audiometry.Voice Quality: That component of SPEECH which gives the primary distinction to a given speaker's VOICE when pitch and loudness are excluded. It involves both phonatory and resonatory characteristics. Some of the descriptions of voice quality are harshness, breathiness and nasality.Immediate Dental Implant Loading: Endosseous dental implantation where implants are fitted with an abutment or where an implant with a transmucosal coronal portion is used immediately (within 1 week) after the initial extraction. Conventionally, the implantation is performed in two stages with more than two months in between the stages.Phonation: The process of producing vocal sounds by means of VOCAL CORDS vibrating in an expiratory blast of air.Mainstreaming (Education): Most frequently refers to the integration of a physically or mentally disabled child into the regular class of normal peers and provision of the appropriately determined educational program.Vestibular Aqueduct: A small bony canal linking the vestibule of the inner ear to the posterior part of the internal surface of the petrous TEMPORAL BONE. It transmits the endolymphatic duct and two small blood vessels.Electrical Equipment and Supplies: Apparatus and instruments that generate and operate with ELECTRICITY, and their electrical components.Dental Abutments: Natural teeth or teeth roots used as anchorage for a fixed or removable denture or other prosthesis (such as an implant) serving the same purpose.Auditory Diseases, Central: Disorders of hearing or auditory perception due to pathological processes of the AUDITORY PATHWAYS in the CENTRAL NERVOUS SYSTEM. These include CENTRAL HEARING LOSS and AUDITORY PERCEPTUAL DISORDERS.

PET imaging of cochlear-implant and normal-hearing subjects listening to speech and nonspeech. (1/786)

Functional neuroimaging with positron emission tomography (PET) was used to compare the brain activation patterns of normal-hearing (NH) with postlingually deaf, cochlear-implant (CI) subjects listening to speech and nonspeech signals. The speech stimuli were derived from test batteries for assessing speech-perception performance of hearing-impaired subjects with different sensory aids. Subjects were scanned while passively listening to monaural (right ear) stimuli in five conditions: Silent Baseline, Word, Sentence, Time-reversed Sentence, and Multitalker Babble. Both groups showed bilateral activation in superior and middle temporal gyri to speech and backward speech. However, group differences were observed in the Sentence compared to Silence condition. CI subjects showed more activated foci in right temporal regions, where lateralized mechanisms for prosodic (pitch) processing have been well established; NH subjects showed a focus in the left inferior frontal gyrus (Brodmann's area 47), where semantic processing has been implicated. Multitalker Babble activated auditory temporal regions in the CI group only. Whereas NH listeners probably habituated to this multitalker babble, the CI listeners may be using a perceptual strategy that emphasizes 'coarse' coding to perceive this stimulus globally as speechlike. The group differences provide the first neuroimaging evidence suggesting that postlingually deaf CI and NH subjects may engage differing perceptual processing strategies under certain speech conditions.  (+info)

Recruitment of the auditory cortex in congenitally deaf cats by long-term cochlear electrostimulation. (2/786)

In congenitally deaf cats, the central auditory system is deprived of acoustic input because of degeneration of the organ of Corti before the onset of hearing. Primary auditory afferents survive and can be stimulated electrically. By means of an intracochlear implant and an accompanying sound processor, congenitally deaf kittens were exposed to sounds and conditioned to respond to tones. After months of exposure to meaningful stimuli, the cortical activity in chronically implanted cats produced field potentials of higher amplitudes, expanded in area, developed long latency responses indicative of intracortical information processing, and showed more synaptic efficacy than in naive, unstimulated deaf cats. The activity established by auditory experience resembles activity in hearing animals.  (+info)

Positron emission tomography in cochlear implant and auditory brain stem implant recipients. (3/786)

OBJECTIVE: The purpose of this study was to determine whether similar cortical regions are activated by speech signals in profoundly deaf patients who have received a multichannel cochlear implant (CI) or auditory brain stem implant (ABI) as in normal-hearing subjects. STUDY DESIGN: Positron emission tomography (PET) studies were performed using a variety of discrete stimulus conditions. Images obtained were superimposed on standard anatomic magnetic resonance imaging (MRI) for the CI subjects. The PET images were superimposed on the ABI subject's own MRI. SETTING: Academic, tertiary referral center. PATIENTS: Five subjects who have received a multichannel CI and one who had received an ABI. INTERVENTION: Multichannel CI and ABI. MAIN OUTCOME MEASURE: PET images. RESULTS: Similar cortical regions are activated by speech stimuli in subjects who have received an auditory prosthesis. CONCLUSIONS: Neuroimaging provides a new approach to the study of speech processing in CI and ABI subjects.  (+info)

Noninvasive direct stimulation of the cochlear nerve for functional MR imaging of the auditory cortex. (4/786)

We herein present our preliminary experience with functional MR imaging of the direct electrical stimulation of the cochlear nerve using an MR imaging-compatible electrode placed in the external auditory meatus of five patients with binaural sensorineural hearing loss. The stimulator was placed outside the imager's bore, and the electrode produced virtually no susceptibility artifacts. In three of five patients, it was possible to activate the superior temporal gyrus during functional MR imaging. No side effects were observed.  (+info)

Cognitive factors and cochlear implants: some thoughts on perception, learning, and memory in speech perception. (5/786)

Over the past few years, there has been increased interest in studying some of the cognitive factors that affect speech perception performance of cochlear implant patients. In this paper, I provide a brief theoretical overview of the fundamental assumptions of the information-processing approach to cognition and discuss the role of perception, learning, and memory in speech perception and spoken language processing. The information-processing framework provides researchers and clinicians with a new way to understand the time-course of perceptual and cognitive development and the relations between perception and production of spoken language. Directions for future research using this approach are discussed including the study of individual differences, predicting success with a cochlear implant from a set of cognitive measures of performance and developing new intervention strategies.  (+info)

Electrical cochlear stimulation in the deaf cat: comparisons between psychophysical and central auditory neuronal thresholds. (6/786)

Cochlear prostheses for electrical stimulation of the auditory nerve ("electrical hearing") can provide auditory capacity for profoundly deaf adults and children, including in many cases a restored ability to perceive speech without visual cues. A fundamental challenge in auditory neuroscience is to understand the neural and perceptual mechanisms that make rehabilitation of hearing possible in these deaf humans. We have developed a feline behavioral model that allows us to study behavioral and physiological variables in the same deaf animals. Cats deafened by injection of ototoxic antibiotics were implanted with either a monopolar round window electrode or a multichannel scala tympani electrode array. To evaluate the effects of perceptually significant electrical stimulation of the auditory nerve on the central auditory system, an animal was trained to avoid a mild electrocutaneous shock when biphasic current pulses (0.2 ms/phase) were delivered to its implanted cochlea. Psychophysical detection thresholds and electrical auditory brain stem response (EABR) thresholds were estimated in each cat. At the conclusion of behavioral testing, acute physiological experiments were conducted, and threshold responses were recorded for single neurons and multineuronal clusters in the central nucleus of the inferior colliculus (ICC) and the primary auditory cortex (A1). Behavioral and neurophysiological thresholds were evaluated with reference to cochlear histopathology in the same deaf cats. The results of the present study include: 1) in the cats implanted with a scala tympani electrode array, the lowest ICC and A1 neural thresholds were virtually identical to the behavioral thresholds for intracochlear bipolar stimulation; 2) behavioral thresholds were lower than ICC and A1 neural thresholds in each of the cats implanted with a monopolar round window electrode; 3) EABR thresholds were higher than behavioral thresholds in all of the cats (mean difference = 6.5 dB); and 4) the cumulative number of action potentials for a sample of ICC neurons increased monotonically as a function of the amplitude and the number of stimulating biphasic pulses. This physiological result suggests that the output from the ICC may be integrated spatially across neurons and temporally integrated across pulses when the auditory nerve array is stimulated with a train of biphasic current pulses. Because behavioral thresholds were lower and reaction times were faster at a pulse rate of 30 pps compared with a pulse rate of 2 pps, spatial-temporal integration in the central auditory system was presumably reflected in psychophysical performance.  (+info)

Differential recruitment of the speech processing system in healthy subjects and rehabilitated cochlear implant patients. (7/786)

Differences in cerebral activation between control subjects and post-lingually deaf rehabilitated cochlear implant patients were identified with PET under various speech conditions of different linguistic complexity. Despite almost similar performance in patients and controls, different brain activation patterns were elicited. In patients, an attentional network including prefrontal and parietal modality-aspecific attentional regions and subcortical auditory regions was over-activated irrespective of the nature of the speech stimuli and during expectancy of speech stimuli. A left temporoparietal semantic region was responsive to meaningless stimuli (vowels). In response to meaningful stimuli (words, sentences, story), left middle and inferior temporal semantic regions and posterior superior temporal phonological regions were under-activated in patients, whereas anterior superior temporal phonological regions were over-activated. These differences in the recruitment of the speech comprehension system reflect the alternative neural strategies that permit speech comprehension after cochlear implantation.  (+info)

Responses of inferior colliculus neurons to amplitude-modulated intracochlear electrical pulses in deaf cats. (8/786)

Current cochlear prostheses use amplitude-modulated pulse trains to encode acoustic signals. In this study we examined the responses of inferior colliculus (IC) neurons to sinusoidal amplitude-modulated pulses and compared the maximum unmodulated pulse rate (Fmax) to which they responded with the maximum modulation frequency (maxFm) that they followed. Consistent with previous results, responses to unmodulated pulses were all low-pass functions of pulse rate. Mean Fmax to unmodulated pulses was 104 pulses per second (pps) and modal Fmax was 60 pps. Above Fmax IC neurons ceased responding except for an onset burst at the beginning of the stimulus. However, IC neurons responded to much higher pulse rates when these pulses were amplitude modulated; 74% were relatively insensitive to carrier rate and responded to all modulated carriers including those exceeding 600 pps. In contrast, the responses of these neurons (70%) were low-pass functions of modulation frequency, and the remaining (30%) had band-pass functions with a maxFm of 42 and 34 Hz, respectively. Thus temporal resolution of IC neurons for modulated frequencies is significantly lower than that for unmodulated pulses. These two measures of temporal resolution (Fmax and maxFm) were uncorrelated (r(2) = 0.101). Several parameters influenced the amplitude and temporal structure of modulation responses including modulation depth, overall intensity and modulation-to-carrier rate ratio. We observed distortions in unit responses to amplitude-modulated signals when this ratio was 1/4 to 1/6. Since most current cochlear implant speech processors permit ratios that are significantly greater than this, severe distortion and signal degradation may occur frequently in these devices.  (+info)

Cochlear implant technology is growing rapidly in Malaysia to assist patients with hearing problems especially among children. Cochlear implants may be beneficial for the speech development of children and help children attend normal schools. However, the success of cochlear implants depends on the detection and early intervention of children and efforts to habilitation / rehabilitation by therapists and parents.. The latest scenario in Malaysia, most users only use cochlear implant in one ear only. Therefore, various studies have been conducted to evaluate the benefits of cochlear implants. According to a study on the use of cochlear implant and its impact on the binaural processing for pediatric patients and adults showed that patients using bimodal fitting get better benefits than patients using cochlear implant or hearing aid in one ear only (Molly Justus, 2008).. ...
OBJECTIVE: To conduct a pilot study in adults with the Nucleus CI24M/SP5 cochlear implant system. PATIENTS AND METHODS: Eight postlingually deafened adults who had received little or no benefit from conventional hearing aids, equipped with the Nucleus CI24M/SP5 cochlear implant system. RESULTS AND CONCLUSIONS: The results indicate that most of the subjects were able to perform well in speech recognition tests. The test performances appeared to be strongly affected by the duration of deafness. The speech processors four user-selectable program memories have been extremely useful for the subjects to evaluate variations to the speech coding strategies in ordinary surroundings outside of the laboratory. The telemetry functions of the new implant provide a set of useful clinical and research tools for gathering greater insights into the in-situ operation of the implant. ...
TY - JOUR. T1 - Loudness balance between acoustic and electric stimulation by a patient with a multichannel cochlear implant. AU - Dorman, Michael. AU - Smith, L.. AU - Parkin, J. L.. PY - 1993/8. Y1 - 1993/8. N2 - Estimates of loudness balance were obtained for acoustically and electrically presented 250 Hz sine signals from a patient who uses the Ineraid multichannel cochlear implant. Acoustic and electric loudness matching was possible because the patient evidenced a 25 dB HL threshold at 250 Hz in his nonimplanted ear. The level of the electrical stimulus in microamperes required for a balance of loudness grew linearly with equal increments in decibels for the acoustic stimulus. These data, in concert with the very limited data from previous studies, provide a rationale for using a logarithmic transformation of acoustic to electric intensity in signal processors for cochlear implants.. AB - Estimates of loudness balance were obtained for acoustically and electrically presented 250 Hz sine ...
Children with profound deafness are at risk for serious reading difficulties. Multiple factors affect their development of reading skills, including use of cochlear implants. Further, multiple factors influence the overall success that children experience with their cochlear implants. These factors include the age at which they receive an implant, method of communication, vocabulary skills, preoperative residual hearing, and socioeconomic status. Ninety-one children with prelingual and profound hearing impairments who received cochlear implants at varying ages participated in the study. Structural equation modeling confirmed that multiple factors affected young cochlear implant users reading comprehension skills and that there were significant associations between the predictors of reading comprehension. Pre-implant vocabulary had an indirect positive effect on reading through postimplant vocabulary, which had a direct positive effect on reading. Overall, children with stronger language skills ...
OBJECTIVES: Monopolar stimulation of the most apical electrode produces the lowest pitch sensation in cochlear implants clinically. A phantom electrode that uses out-of-phase electrical stimulation between the most apical and the neighboring basal electrode can produce a lower pitch sensation than that associated with the most apical electrode. However, because of the absence of contacts beyond the apical tip of the array, the ability to assess the spread of electrical excitation associated with phantom stimulation is limited in the typical cochlear implant subject with no residual hearing. In the present study, the spread of electrical excitation associated with monopolar and phantom stimulation of the most apical electrode was assessed using electrical masking of acoustic thresholds in cochlear implant subjects with residual, low-frequency, acoustic hearing. DESIGN: Eight subjects with an Advanced Bionics cochlear implant and residual hearing in the implanted ear participated in this study ...
Advanced Bionics extends their portfolio of solutions for cochlear implant users with the introduction of the Naída Link CROS Solution. If you have one cochlear implant, and no hearing in the opposite ear, the Naída Link CROS can transmit sound wirelessly from your bad side to the cochlear implant! Full press release from Advanced Bionics: Jul…
May 9, 2016 - (DURHAM, NC) - In celebration of Mays Better Hearing and Speech month, hearing implant leader MED-EL announced the launch of their first-ever Spotify playlist designed specifically for cochlear implant users. Spotify is a desktop and mobile streaming music service that offers free and paid subscriptions. Cochlear implant (CI) users are invited to follow MED-EL on…
Children with bilateral cochlear implants are found to have better language and vocabulary skills than children with unilateral cochlear implants, a study shows.
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Cochlear implant and hearing loss videos including educational videos, cochlear implant testimonials and cochlear implant product videos
by Susan Boswell These are often the first words spoken when a cochlear implant recipients processor is turned on. And they have been a rite of passage for more than 36,000 people around the world who have received cochlear implants over the last two decades. Technological advances have brought dramatic changes in candidacy criteria, opening the door for more people with severe and profound hearing losses to choose this option.. When the U.S. Food and Drug Administration (FDA) first approved a cochlear implant with a single electrode for adults in 1985 and for children in 1990, only those who were almost completely deaf and could only perceive vibrations with a hearing aid could qualify.. Today, children and adults who were not candidates just two years ago may well be considered as candidates. The age of pediatric candidates has dropped from 2 years to as young as 12 months, and eligibility criteria for adults continue to expand.. A growing body of research has demonstrated that children who ...
The co-primary study endpoints will be statistically significant differences between the mean, preoperative AzBio Sentences score in noise (unilateral acoustic, ear to be implanted) and postoperative AzBio Sentences score in noise (Hybrid mode) for the activated, Hybrid L24 cochlear implant subjects.. The AzBio Sentence Test consists of 15 lists of 20 sentences each. AzBio sentences are spoken by different talkers in a conversational style with limited contextual cues that the listener can use to predict or fill in unintelligible words. Each list includes 5 sentences from 4 different male and female speakers. Each word in the sentence counts towards the overall score. ...
Cochlear implants were created for adults and children that suffer from a form of hearing loss known as sensorineural hearing loss. In sensorineural hearing loss there is usually damage to the tiny hair like cells in the cochlea. The cochlea is the tiny snail shaped coil in your inner ear that transmits sound signals to the auditory nerve. When the tiny hair like cells in your cochlea are damaged they are unable to transmit the sound signals to the auditory nerve. The cochlear implant circumvents the cochleas tiny hair like cells and directly stimulates the auditory nerve.. So how does the cochlear implant work? First a tiny receiver is implanted just under your skin behind the ear. This receiver is then connected to tiny electrodes that have been placed in the cochlea. You are then fitted with an external auditory speech processor, a transmitter and a battery pack. The microphone looks like a hearing aid and is worn behind the ear or it can be worn somewhere else on your body depending on your ...
Now, parents of deaf children have at hand a complete guide to the process of cochlear implantation. Written by two eminent professionals in deaf education, The Parents Guide to Cochlear Implants explains in a friendly, easy-to-follow style each stage of the process. Parents will discover how to have their child evaluated to determine her or his suitability for an implant. They ll learn about implant device options, how to choose an implant center, and every detail of the surgical procedure. The initial switch-on is described along with counseling about device maintenance.. Most importantly, parents will learn their roles in helping their child adjust to and successfully use the cochlear implant. The Parents Guide to Cochlear Implants emphasizes such critical subjects as learning to listen through home activities, implants as tools for language development, and critical issues regarding school placement. This encouraging book considers the implications for performance in light of the whole ...
A cochlear implant is an electronic device that transmits electrical impulses to the brain where they are perceived as sounds both for children who are born deaf or become deaf and also deaf or severely hard of hearing adults.. The cochlear implant consists of two parts:. - the external part with a speech processor incorporating a microphone which is placed behind the ear with a transmitter coil or with a compact, single-unit audio processor that is held in place by magnets over the implanted receiver. - a surgically implanted internal part consisting of a receiver package implanted in a recess in the mastoid bone which is connected to the electrode array positioned within the cochlea.. Today the possibility of obtaining a cochlear implant in Europe is still very uneven and depends in particular on the social insurance system of the country concerned.. It should be remembered that health policy in the European Union is in the first place the responsibility of each state member.. Numerous ...
Purpose: The purpose of this study was to examine the rate of progress in the 2nd implanted ear as it relates to the 1st implanted ear and to bilateral performance in adult sequential cochlear implant recipients. In addition, this study aimed to identify factors that contribute to patient outcomes. Method: The authors performed a prospective longitudinal study in 21 adults who received bilateral sequential cochlear implants. Testing occurred at 6 intervals: prebilateral through 12 months postbilateral implantation. Measures evaluated speech recognition in quiet and noise, localization, and perceived benefit. Results: Second ear performance was similar to 1st ear performance by 6 months postbilateral implantation. Bilateral performance was generally superior to either ear alone; however, participants with shorter 2nd ear length of deafness (|20 years) had more rapid early improvement and better overall outcomes than those with longer 2nd ear length of deafness (|30 years). All
My attitudes and perspectives about young deaf children getting cochlear implants have gradually evolved since the first time I heard about deaf people getting cochlear implants. Growing up with deaf parents and attending deaf schools, I have a strong sense of pride of being deaf and being part of the Deaf community. I do not look at myself as disabled. I often say if I were given a choice to hear or stay deaf, I d choose to stay deaf. It is who I am. My family, my friends, and my community have taught me that being deaf is part of our culture and is a way of life. Many deaf people have succeeded in life without having the ability to hear. They ve become lawyers, doctors, scientists, and teachers. It has nothing to do with the ability to hear. It has to do with many other factors such as the person s attitude, values, beliefs, and motivation.. I used to oppose strongly the idea of deaf people getting cochlear implants. It indicates the need to fix the problem. I felt betrayed and angry that ...
The George Washington University Hospital offers cochlear implants for patients with hearing loss. A cochlear implant is a small, electronic device that can provide sound perception to a person who is deaf or severely hard-of-hearing. The device can be particularly useful for people who receive little or no benefit from hearing aids. Cochlear implants have two major
Objectives/Hypothesis: This study documents the importance of preserving residual low-frequency acoustic hearing as those with more residual hearing are selected for cochlear implantation. Surgical strategies used for hearing preservation with a short hybrid cochlear implant are outlined. The benefits of preserved residual low-frequency hearing, improved word understanding in noise, and music appreciation are described.. Study Design: Multicenter, prospective, single-subject design.. Methods: Records were reviewed of 21 individuals participating in an Food and Drug Administration (FDA) feasibility clinical trial who have received an Iowa/Nucleus 10 mm electrode. A second group of subjects receiving implants at the University of Iowa that have used the 10 mm device between 2 years and 6 months were also reviewed. Outcome measures included standardized tests of monosyllabic word understanding, spondees in noise, and common melody recognition.. Results: Low-frequency hearing was maintained in all ...
CRITIQUE: The number of children who receive cochlear implants is increasing, likely the result of many factors such as universal newborn hearing screening, improvements in audiological testing, and advances in hearing technology. Additionally, there has been a trend to provide cochlear implants to children at much younger ages than in the past. This book is an appropriate resource for students enrolled in college training programs and is also appropriate for school professionals who are new to the field of cochlear implants as well as those that have been working with implants for several years. The book addresses the issue that the procedures used to educate children with hearing losses have changed significantly over recent years. As the authors indicate, this book does not answer all questions regarding educational issues of such children, but does provide the reader with good references regarding this topic. One of the main strengths of the text is its emphasis on a team approach to ...
Cochlear implants & hearing | Cochlear implants & cochlear implant technology, Hearing Loss: Types of Hearing Loss, Search form, and Interactive Ea...
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7 interesting cochlear implant pros and cons that will make you think. What does the cochlear implant do? How well does the cochlear implant work?
Find information on cochlear implants, surgically placed devices designed to provide hearing to children who have profound hearing loss in ears. For more information on cochlear implants, call St. Louis Childrens Hospital at 314-454-KIDS (5437).
A cochlear implant system is a medical option for individuals with severe to profound sensorineural hearing loss. Watch how a cochlear implant works.
(PhysOrg.com) -- Cochlear implants are electronic devices that stimulate auditory nerves directly, bypassing damage in the inner ear, and thus restoring some hearing. Although cochlear implants have revolutionized the treatment ...
The present thesis investigated cognitive ability in children with severe to profound hearing impairment who have received cochlear implants (CIs). The auditory stimulation from a cochlear implant early in life influences most cognitive functions as a consequence of the plasticity of the brain in the young child. It is important to understand the cognitive consequences of auditory stimulation from CIs in order to provide adequate support to these children. This thesis examined three specific aspects of cognitive ability (working memory, phonological skill and lexical access), and reading ability in children with CIs, as compared to children with normal hearing in the same age. The relations between cognitive abilities and reading skills were also investigated, as well as the associations between demographic variables (e.g., age at implantation and communication mode), cognitive abilities and reading skills. The children with CI generally had lower performance levels than the normal hearing ...
The present thesis investigated cognitive ability in children with severe to profound hearing impairment who have received cochlear implants (CIs). The auditory stimulation from a cochlear implant early in life influences most cognitive functions as a consequence of the plasticity of the brain in the young child. It is important to understand the cognitive consequences of auditory stimulation from CIs in order to provide adequate support to these children. This thesis examined three specific aspects of cognitive ability (working memory, phonological skill and lexical access), and reading ability in children with CIs, as compared to children with normal hearing in the same age. The relations between cognitive abilities and reading skills were also investigated, as well as the associations between demographic variables (e.g., age at implantation and communication mode), cognitive abilities and reading skills. The children with CI generally had lower performance levels than the normal hearing ...
The Hybrid cochlear implant (CI) has been developed for individuals with high frequency hearing loss who retain good low frequency hearing. Outcomes have been encouraging but individual variability is high; the health of the cochlea and the auditory nerve may be important factors driving outcome. Electrically evoked compound action potentials (ECAPs) reflect the response of the auditory nerve to electrical stimulation while electrocochleography (ECochG) reflects the response of the cochlear hair cells and auditory nerve to acoustic stimulation. In this study both ECAPs and ECochG responses were recorded from Nucleus Hybrid L24 CI users. Correlations between these two measures of peripheral auditory function and speech perception are reported. This retrospective study includes data from 25 L24 CI users. ECAPs and ECochG responses were recorded from an intracochlear electrode using stimuli presented at or near maximum acceptable loudness levels. Speech perception was assessed using Consonant-Nucleus
This update explores the importance of early auditory stimulation by considering the development of speech processing skills in profoundly deaf children who have received a cochlear implant. This literature is relevant to issues affecting children with Down syndrome, because like them, children with cochlear implants have hearing difficulties, but unlike the former, they do not have oral-motor issues.
DiNino, M., Wright, R. A., Winn, M. B., Bierer, J. A., "Vowel and consonant confusions from spectrally manipulated stimuli designed to simulate poor cochlear implant electrode-neuron interfaces." J. Acoust. Soc. Am. 140(6): 4404-4418, 2016.. Bierer, J.A., Litvak, L. "Reducing channel interaction through cochlear implant programming may improve speech perception: Current focusing and channel deactivation." Trends in Hearing. 17; 20, 2016.. Cosentino, S., Carlyon, R.P., Deeks, J.M., Parkinson, W., Bierer, J.A., "Rate discrimination, gap detection and ranking of temporal pitch in cochlear implant users." J. Assoc. Res. Otolaryngol. 17(4):371-82, 2016.. Bierer, J.A., Spindler, E., Bierer, S.M., Wright, R.A. "An examination of sources of variability across the Consonant-Nucleus-Consonant test in cochlear implant listeners." Trends in Hearing. 17; 20, 2016.. DeVries, L.A., Scheperle, R.A., Bierer, J.A., "Assessing the electrode-neuron interface with the electrically-evoked compound action potential, ...
Cochlear implant and amplifier. The implants external sound processor (upper right) sits just behind the ear. The transmitter (round, black) sticks magnetically to the skull. It transmits sound as radio waves to an internal receiver (white, lower right) surgically implanted under the scalp. The sound is then transmitted, via wires, to electrodes (far right) implanted in the cochlea of the inner ear, allowing the person to hear the sounds. The device at lower left is an external amplifier. This is the Digisonic MXM cochlear implant. - Stock Image C002/1825
How does a cochlear implant work?. For those patients, who suffers from damaged Hair Cells in the Cochlea or Inner ear region subsequently lost their hearing senses or hearing is compromised and cannot be further benefitted with hearing aid. The cochlear implant mechanically delivers / transfers the sound waves to the nerve for enabling the patient to hear clearly. The process is described below:. ...
Nemours offers a comprehensive cochlear implant program. Cochlear implants in children can help kids who are deaf hear conversation and sounds.
InjuryBoard News: Cochlear Implants - Find trial lawyers and attorneys with experience in lawsuits involving Cochlear Implants. Contact an attorney who can help you protect your legal rights, free of
Most modern day cochlear implant (CI) candidates have residual acoustic hearing in one or both ears. Several studies have shown that this residual hearing provi...
EDITORIAL USE ONLY: Surgeon Michael Pringle holds the internal parts of a binaural cochlear implant device. The circular part sits under the skin against the skull with the shorter electrode array going into the cochlea on that side of the head. The longer array runs under the skin across the top of the skull to the cochlea in the other ear. External microphones and processors determine the stimulation to be applied to the internal arrays to give effective stereo hearing. Photographed at Southampton General Hospital, UK.
The orthopaedic implant performance and retrieval program was initiated in 1996 with the arrival of Dr. Clare M. Rimnac to Case Western Reserve University. At that time, in collaboration with Dr. Matthew Kraay and Dr. Victor Goldberg, the Orthopaedic Implant Retrieval and Analysis Laboratory, a joint effort of the Departments of Orthopaedics and Mechanical and Aerospace Engineering at CWRU was created. Dr. Rimnac also oversees related fundamental implant materials characterization studies in laboratory facilities in the Department of Mechanical and Aerospace Engineering at CWRU dedicated to orthopaedic biomechanics and biofabrication/biomanufacturing. In 2012, in keeping with the expansion of its programmatic efforts, the Center for the Evaluation of Implant Performance, was established under the co-direction of Dr. Clare Rimnac (Case School of Engineering) and Dr. Matthew Kraay (Case School of Medicine and University Hospitals Cleveland Medical Center).. In 2000, in partnership with Dr. Steve ...
After contracting a meningitis infection that required immediate surgery, Evie Smith became the youngest person in the UK to receive a cochlear implant.
How is Perception & Performance Technical Group (Human Factors & Ergonomics Society) abbreviated? PPTG stands for Perception & Performance Technical Group (Human Factors & Ergonomics Society). PPTG is defined as Perception & Performance Technical Group (Human Factors & Ergonomics Society) rarely.
A cochlear implant (CI) is an electronic device that can provide a sense of hearing to deaf or profoundly hearing impaired listeners by directly activating auditory nerve fibers. Optimal auditory performance with a CI requires subject-specific adjustments of several system parameters, i.e. the CI needs to be "fitted" to the individual user. A large number of system parameters is available to the clinician in the fitting software. For some of these parameters it is essential that they are individualized prior to switching on the device, since they ensure that sounds are audible without making sounds uncomfortably loud. For other parameters subject-specific optimization is less essential and a one-size-fits-all approach of using default settings results in good performance for the majority of CI users. However, these default settings may not always result in optimal settings for individual CI users and subject-specific fine-tuning of these parameter settings may further improve performance and/or ...
Cochlear Implants and FM Systems. THREE BASIC WAYS TO USE FM SYSTEMS WITH CIsAudio CouplingDesktop Soundfield FM systemsElectrical CouplingPatch cords connect FM Receiver to CIDirect Plug-in of FM ReceiverT-Coil CouplingProcessor has t-coil to receive electromagnetic signal from the Body-worn FM system with Neckloop. Slideshow 293551 by linaeve
One of the things that attracted me to the Dept. of Speech and Hearing Science was the opportunity to do translational research. We have faculty members who come from a wide variety of backgrounds-neuroscience, engineering, linguistics, speech and language science, hearing science-focused on work that will address the challenges of people with communication disorders.. A cochlear implant is an auditory prosthesis for people who are severely to profoundly hearing-impaired. Originally, these implants were designed for people who were so deaf, they could only feel the sound that is amplified by a hearing aid. Cochlear implants change sound to electrical signals that are sent across the skin to an electrode array thats placed in the inner ear [the cochlea]. The electrodes are stimulated, which causes information to be sent to the auditory nerve and then on to the brain, where people process it.. Cochlear implants are not like eyeglasses, where you put them on and your vision is 20/20. The signal is ...
This project aims to improve access to care and increase patient empowerment by scaling up a successful service where people with cochlear implants are offered a personalised online support tool, home hearing test and support to adjust devices themselves.
During normal hearing, sound waves travel through the ear canal and strike the eardrum causing it to vibrate. The eardrum is attached to three tiny bones in the middle ear. The last bone, the stapes, pushes on a fluid-filled chamber in the inner ear, called the cochlea. This fluid movement causes sensitive hair cells within the cochlea to bend. When the hair cells bend, they generate an electrical signal that is sent to the brain. Disease, damage, or deformity of the cochlear hair cells is a common cause of hearing impairment or deafness. These malfunctioning hair cells may send intermittent or unclear signals to the auditory nerve, or send no signal at all. A device called a cochlear implant can restore hearing by replacing these damaged structures with a wire that is implanted in the cochlea. In order to stimulate the hearing process, sound waves are first received by a microphone unit, or speech processor, that hangs over the back of the ear. Within the processor, sound is filtered and ...
Learn more about Cochlear Implants at Reston Hospital Center DefinitionReasons for ProcedurePossible ComplicationsWhat to ExpectCall Your Doctorrevision ...
NUCLUES COCHLEAR IMPLANT telemedicine platform Cochlear Americas INDICATION FOR USE: Remote feature for follow-up programming sessions for the Nucleus Cochlear Implant System through a telemedicine platform. The remote programming feature is indicated for patients who have had six months of experience with their cochlear implant sound processor and are comfortable with the programming process…
Watch The Video: Bionic Ear Delivers DNA To Regrow Auditory Nerve Cells ]. University of New South Wales Researchers at UNSW Australia have for the first time used electrical pulses delivered from a cochlear implant to deliver gene therapy, thereby successfully regrowing auditory nerves.. The research also heralds a possible new way of treating a range of neurological disorders, including Parkinsons disease, and psychiatric conditions such as depression through this novel way of delivering gene therapy.. The research is published today (Thursday 24 April) in the prestigious journal Science Translational Medicine.. "People with cochlear implants do well with understanding speech, but their perception of pitch can be poor, so they often miss out on the joy of music," says UNSW Professor Gary Housley, who is the senior author of the research paper.. "Ultimately, we hope that after further research, people who depend on cochlear implant devices will be able to enjoy a broader dynamic and tonal ...
Gap detection threshold (GDT) is a commonly used measure of temporal acuity in cochlear-implant (CI) recipients. This measure, like other measures of temporal acuity, shows considerable variation across subjects and also varies across stimulation sit
A cochlear implant is an electronic device that restores partial hearing to individuals with severe to profound hearing loss who do not benefit from a conventional hearing aid.
If you have moderate to profound hearing loss and hearing aids are no longer helping, a cochlear implant could be an effective option for you.
In the article that appeared on page 693 of the October 2010 issue of Ear and Hearing, the following should have appeared as the last sentence of the third paragraph in the Introduction:. "Our method is based on a method originally introduced by Wilson and his colleagues in the early 1990s (Wilson et al. 1992; Wilson et al. 1994; Wilson & Dorman 2008, Fig. 6D) as a variation of their virtual channels technique (cf. Wilson & Dorman 2009, pp. 103-108). In turn, Wilson et al.s (1992) technique is related to Townshend, Cotter, Van Campernolled, and Whites (1987) and Townshend and Whites (1987) stimulus sharpening technique.". The following reference entries should have appeared in the References section:. Townshend, B., Cotter, N., Van Campernolled, D., & White R. L. (1987). Pitch perception by cochlear implant subjects. J Acoust Soc Am, 82, 106-115.. Townshend, B., & White, R. L. (1987). Reduction of electrical interaction in auditory prostheses. IEEE Trans Biomed Eng, 34, 891-897.. Wilson, B. ...
As was the case for first generation cochlear implants, early sight recovery devices have relied on straightforward signal processing and encoding schemes that assume that the transformation from stimulation to percept is virtually linear: these models presume that stimulating a grid of positions on the retina leads to the corresponding percept of a grid of luminous dots. However, a variety of psychophysical [19-24] and retinal [25] data, as well as the potential distortions described in this review, suggest that this linear scoreboard model is inadequate as an encoding model. To take the development of cochlear implant technology as a guide, a combination of psychophysical and neurophysiological research has led to dramatic improvements in cochlear implant coding schemes over the years. Indeed, for cochlear implants it could be argued that improvements in encoding have been as important as improvements in physical technology in improving perceptual outcomes [26,27].. Two main ways of ...
Everyone knows that hearing with two ears is better than one. Its not just common sense, its supported by scientific research.1-3. All ages can benefit from listening with two ears. It makes it easier to understand speech in noisy environments and to determine where sounds are coming from.. Cochlear implant recipients hear with both ears in two ways -- either bilaterally (with a cochlear implant in each ear) or bimodally (with a cochlear implant in one ear and a hearing aid in the other). Only AB and Phonak go beyond bilateral and bimodal hearing with Binaural VoiceStream Technology™.. ...
For many years scientists tinkered to find a perfect replacement for the damaged or dysplastic inner ear. Cochlear implants receive a sound, convert it into electrical stimuli and send these impulses directly to the auditory nerve, thereby giving hearing impaired children the chance to connect to the world of sounds and noises.
Hope for Maines hearing-impaired children and adults: Cochlear implants and Hear ME now experts can help deaf children and adults listen and speak.
Cochlear implant, 3D coloured computed tomography (CT) scan. This device is implanted in the scalp, connected to the ear and the brain. The external component (microphone and sound processor) is worn on the ear. Alead takes the sound to the transmitter part of the device, which is magnetically bound to the internal component which has been surgically placed on the skull under the skin (pink, blue and green areas). The internal component converts the sound signal into electrical impulses sent to electrodes (yellow) implanted in the cochlea, the organ of hearing, allowing those with hearing losses to regain a sense of hearing. - Stock Image C036/8952
A cochlear implant works differently than a hearing aid. Hearing aids amplify sounds so that a person with nerve damage can hear more clearly. 435-628-3334
A deaf women has become the first in the country to be given stereo hearing from just one cochlear implant. By Richard Alleyne, Science Correspondent, DAILY TELEGRAPH Published: 6:00PM BST 27 Aug 2010 The new electronic device could revolutionise treatment for the very hard of hearing as it costs half as much as previous…
rise steadily, especially among children between the ages of 1 and 5. A cochlear implant is a surgically implanted device that stimulates the inner ear with electrical signals to the auditory nerve, which then sends signals to the brain where theyre translated into sounds. Unlike a hearing aid, which amplifies sound, cochlear implants compensate for damaged or non-working parts of the inner ear. The highly charged controversy about whether to get one and at what age has calmed to a general acceptance of individual choice. Now, a very small but growing percentage of the 90,000 people worldwide who have a cochlear implant are getting a second implant in their other ear. Adrean Mangiardi, a 25-year-old film major, is one of three RIT students with two implants. He got the first in his right ear when he was 15, and his second this spring.. "When I went through the mapping process the first time [fine tuning after the surgery to determine individuals threshold and comfort], everything I sensed in ...
The PORA Programme is targeted at groups of parents and professionals working with deaf and/or hearing impaired children with hearing aids and/or cochlear implants with the aim to impart basic knowledge, to share information on recent developments in this field and to encourage exchange of experience amongst the participants.. Why PORA? PORA stands for "call for action" among the target audience to upgrade their knowledge and network with the aim of further improving CI practice on a global basis and thus delivering better quality and more efficient care to children suffering from hearing loss. PORA is here to promote use of modern methods of communication among parents and thus develop a strong network of like-minded individuals sharing the same values, aspirations, and most importantly, needs.. Its time to get connected for the benefit of ourselves - therapists and parents - and of our children!. PORA offers you:. ...
For the first time, researchers at the University of New South Wales in Australia have used cochlear implants to regenerate auditory nerves through gene therapy, a process where therapeutic DNA is inserted into cells to treat a disease.
The invention of the cochlear implant offers children with cerebral palsy and with hearing impairment an opportunity for auditory excellence...
The creator of the cochlear implant - a revolutionary device that enables people born or made deaf through disease or trauma to hear and recognise speech - has won a top international award in clinical…
If you ve to enable view the artificial ear cochlear implants and the taps about this Physicist, benefit keep our free quantum information or pull our soul freeze. The word is uniform mathematicians of Quantum Field Theory and of Gauge libraries, with tribe to original Ethnology. non-perturbative companies of the subatomic simulation of cognitive programs( Higgs life and many series explaining in history oxygen) are sent without helping on the homosexual browser and on j day.
Lamont didnt despair when he lost the little hearing he had in one ear. With a cochlear implant, hes hearing better than ever and sharing his pride with other kids
Investigating educational and employment status is one way of assessing quality of life, the authors note. Frederic Venail, M.D., Ph.D., of Centre Hospitalier Universitaire Gui de Chauliac, France, and colleagues interviewed the parents of 100 children who were deaf before they began to speak, received cochlear implants before age 6 and had at least four years of follow-up (average follow-up, 10.6 years). Of the 74 patients without additional disabilities, 24 were age 8 to 11, 24 were age 12 to 15, 18 were age 16 to 18 and eight were older than 18 years ...
A young piano student who wears cochlear implants describes what the notes sound like to her in these video clips from the documentary film Lost and Sound.
New research finds that cochlear implants in older people not only help with hearing loss but may also improve thinking and memory.
Local resource for Cochlear Implants in Rock Hill, SC. Includes detailed information on local businesses that give access to hospitals, hearing specialists, hearing centers as well as information on audiologist and content on hearing loss.
Local resource for Cochlear Implants in Modesto, CA. Includes detailed information on local businesses that give access to hospitals, hearing specialists, hearing centers as well as information on audiologist and content on hearing loss.
Do you have a question about the Cochlear Implant Program or about the services we offer at Childrens Hospital of Philadelphia? Well do our best to respond quickly, but please remember that it may take several days for us to send you a reply.. Please do not use this form to communicate information about your childs health.. If this is an emergency, please call 911 or your local emergency services provider.. ...
CENTENNIAL, Colo., June 24, 2015 /PRNewswire/ -- FDA Approves Technology Upgrade for Recipients of First Commercially Available Cochlear Implant. Cochlear™...
EURO-CIU Symposium brings together over 200 Cochlear Implant (CI) users and professionals around Finland and Europe. Spouse of the President of Finland, Mrs Jenni Haukio, will act as patroness and the opening ceremony in the Thursday morning will be opened by Minister of Social Affairs and Health Pirkko Mattila.. The programme consists of expert lectures and workshops. International lecturers arrive from around Europe and Australia. All together over 40 presentations in three different rooms. See the programme here: http://www.euro-ciu2017.fi/en/program/. Arrival info here: http://www.euro-ciu2017.fi/en/accommodation/. Please note: Parking by The Light House is free, however parking places are limited. We recommend public transportation. There may be some parking lots on the streets nearby.. When you arrive to The Light House, please register at the information desk. You will receive your name tag with the lunch tickets (in the plastic badge) for those days you have registered. Due to limited ...
Researchers at MIT's Microsystems Technology Laboratory (MTL), together with physicians from Harvard Medical School and the Massachusetts Eye and Ear Infirmary (MEEI), have developed a new, low-power signal-processing chip that could lead to a cochlear implant that requires no external hardware. The implant would be wirelessly recharged and would run for about eight hours on each charge.
Developing a cost-effective, portable, easy-to-use program and interactive platform for cochlear implant researchers and clinicians.
Learn more about Cochlear Implants medical procedure, risk, preparation, definitions, what to expect after and results at FindaTopDoc.
Almost two decades after the daughter of rugby league legend Wally Lewis, Jamie-Lee, received a cochlear implant researchers will peer inside her brain to learn ...
Issuu is a digital publishing platform that makes it simple to publish magazines, catalogs, newspapers, books, and more online. Easily share your publications and get them in front of Issuus millions of monthly readers. Title: The Clarion Call, 4/11/2013, Author: The Clarion Call, Name: The Clarion Call, 4/11/2013, Length: 12 pages, Page: 1, Published: 2013-04-10
An audio processing pipeline, for an auditory prosthesis, includes: a common stage, including a common frequency analysis filter bank, configured to generate a common set of processed signals based on an input audio signal; and first and second stimulator-specific stages, responsive to the common set of signals and including first and second frequency-analysis filter banks, configured to generate first and second sets of processed signals adapted for the first and second hearing stimulators, respectively.
other researchers have recently discovered that the areas of the brain responsible for processing vision or touch can recruit, or take over, areas in which hearing is normally processed, but which receive little or no stimulation in deafness. This is called "cross-modal" cortical reorganization and reflects a fundamental property of the brain to compensate in response to its environment. According to Dr. Sharma, "We find that this kind of compensatory adaptation may significantly decrease the brains available resources for processing sound and can affect a deaf patients ability to effectively perceive speech with their cochlear implants." Cochlear implants are implanted devices that bypass damaged portions of the ear and directly stimulate the auditory nerve. Signals generated by the implant are sent by way of the auditory nerve to the brain, which recognizes the signals as sound, according to the National Institutes of Health, which funds Dr Sharmas research. Next, Sharma and colleagues will ...
Jane Wozniak Harlan Lane Joyce Manzella Joseph Perkell Melanie Matthies Mario Svirsky Michael OConnell Clay Mitchell Res. Lab. of Electron., Rm. 36-511, MIT, Cambridge, MA 02139 Syllable-to-syllable fluctuation of F0 and SPL were measured in readings of a passage by 4 post-lingually deafened adults, recorded before and after they received cochlear implants, and one adult with neurofibromatosis-2 (NF2), who was initially profoundly deaf in one ear and had a mild to moderate hearing loss in the other (aided). Three of the 4 cochlear implant users reliably reduced syllable-to-syllable fluctuation in F0 and SPL following the activation of their speech processors. The fourth speaker began with and maintained the regularity achieved by the others post-activation. In recordings made following the onset of bilateral profound deafness, the NF2 subject showed increased syllable-to-syllable fluctuation in F0 and SPL. Results from another experiment [M. A. Svirsky et al ...
Cochlear Limited, the global leader in implantable hearing solutions, announced today that the U.S. Food and Drug Administration (FDA) has approved the Cochlear™ Nucleus® 6 Sound Processor for use with the Nucleus 22 Cochlear Implant, giving those who have worn cochlear implants from the beginning (over 20 years in some cases) access to the latest breakthroughs in true wireless and automatic hearing. Released in 1985, the Nucleus 22 Implant was the first commercially available multi-channel cochlear implant in the world.. ...
Mr. Speaker, I rise today to pay tribute to Sick Childrens Hospital, in particular its cochlear implant program, which is second to none in the world and which has been doing miracles for children across the country.. My oldest daughter has a severe hearing loss. She has fought her whole life just to be able to participate in the most casual of conversations. When she was 17, she came home from school and said, "Dad, I dont want to be deaf any more". She went online and learned about the cochlear implant program. She contacted the hospital herself. Within three hours of her email being sent, we received a phone call.. From that moment on, Dr. Papsin, Patricia Fuller and Mary-Lynn Feness kicked into action. She was quickly assessed, she received her operation and she went through phenomenal post-op care. That operation has turned her life around.. All too often we hear from the enemies of public health care, but Sick Kids is a symbol for which we need to fight. The cochlear implant program is ...
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The bionic ear has been one of the most successful medical bionics devices; there are now over 450,000 recipients worldwide. However, the bionic ear has some shortcomings - particularly its performance for understanding speech in noisy environments and listening to music. Therefore, a substantial part of our research is aimed at improving the quality of hearing that can be provided with a cochlear implant, as well as with hearing aids. Using a multidisciplinary approach, our research program encompasses auditory neuroscience, development of new sound-processing strategies, and development of techniques that promote and maintain the surviving auditory neurons in cochlear implant recipients.. ...
New speech-to-touch sensory substitution device can improve hearing in hearing-impaired cochlear implant patients without any training, reveals a new study.
Each year many deaf children get a cochlear implant to connect to the world of sounds. So far, it was not clear which processes take place in these children when they start to learn language -- and why they differ in the level of language they achieve. Now, the Max Planck Institute for Human Cognitive and Brain Sciences found that deaf children with a cochlear implant learn words even faster than those with normal hearing.
Hosted by Boston Childrens Hospital and the Minuteman Implant Club, Inc.. Learners who use cochlear implants need help to succeed. They need encouragement in listening for meaning when young. They depend on remote microphones and voice-to-text supports for real-time access to spoken instruction in school. They face a menu of accommodations which they must choose and use wisely to improve their access to lectures and discussions in college. They show a variety of auditory, linguistic, and social skills which require different tools for success. This workshop is designed to familiarize educational teams with available tools to help them respond to the changing needs of learners who listen with cochlear implants as they advance in communication and in educational levels. The information to be presented also applies in many ways to students who use hearing aids.. Friday Schedule:. ...
Lydia Denworth, discusses the inspiration behind her new book I Can Hear You Whisper, which details her familys experience with her sons hearing loss and cochlear implant use.
An adaptive place-pitch ranking procedure for use with a cochlear implant or other neural stimulation system provides a systematic method for quantifying the magnitude and direction of errors along the place-pitch continuum. The method may be conducted and completed in a relatively short period of time. In use, the implant user or listener is asked to rank the percepts obtained after a sequential presentation of monopolar stimulation pulses are applied to a selected spatially-defined electrode pair. Should the patients judgment of pitch order be correct for all applied interrogations, then no further testing involving the tested electrode pair (two electrode contacts) is undertaken. However, should there be errors in the place-pitch ranking, which errors evidence perceptual place-confusions, then a search is undertaken for the spread of the perceptual confusion by separating the target channel and competing channel by one electrode contact at a time. This search for the spread of confusion
114) De Ceulaer G, Pascoal D, Vanpoucke F and Govaerts PJ. The use of Cochlears SCAN and Wireless Microphones to improve speech understanding in noise with the Nucleus6® CP900 processor. Int J Audiol 2017; DOI 10.1080/14992027.2017.1346305(113) Meeuws M, De Ceulaer G, Pascoal D, Bermejo I, Artaso M, Govaerts PJ. Computer assisted CI fitting: is the learning capacity of the intelligent agent FOX beneficial for speech understanding? Cochlear Implants Intl. 2017; DOI:10.1080/14670100.2017.1325093(112) Wathour J, Teunen M, Pascoal D, Deggouj N, Govaerts PJ. Limplant cochléaire avant lâge dun an : données quantitatives et qualitatives. Rééducation Orthophonique 2016; 268:31-4(111) Coene M, Krijger S, Meeuws M, De Ceulaer G, Govaerts PJ. Linguistic factors influencing speech audiometric assessment. Biomed Res Intnl. 2016, DOI: 10.1155/2016/7249848. (110) Govaerts PJ. Expert opinion: Time to ban formal CI selection criteria? Cochlear Implants International, 2016; 17:sup1, 74-77, DOI: ...
The cognitive function of older adults with profound hearing loss significantly improved after undergoing cochlear implantation, according to a new study.
An apparatus (30) that can test external components of a cochlear implant system in a manner that does not require the person conducting the test to have advanced knowledge of the operation of the tested component. The apparatus provides a relatively quick and straightforward answer to the question of whether the component is operative or not. The testing apparatus (30) comprises at least one testing station (32,33,34) for receiving the component to be tested and makes an electrical and/or inductive connection thereto. A testing circuit is adapted to apply at least one test to the component and measure the response of the component to that test. The apparatus (30) compares the response of the component to stored data indicative of the response to the test of at least one equivalent component that is known to be operational and outputs a result of said comparison.
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Cochlear Americas company data, news, contact details and stock information. Cochlear implants are a proven medical option for children as young as 12 months old with profound hearing loss in both ears and for individuals who are two yea...
Method and apparatus for optically stimulating neurons of a plurality of auditory nerve pathways of a person to provide auditory sensations for the person by generating a plurality of pulsed light signals having one or more successive pulses. The spectrum of a detected audio signal is divided into M channels. In some embodiments, an N-of-M coding strategy is employed, where, for any given time frame, only N of the M channels are selected and illuminated to stimulate the auditory nerves. In some embodiments, the M channels are organized into bins, where, for any given time frame, only a maximum number of channels are illuminated per bin. This limits the number of illuminated channels-per-length of cochlea and therefore prevents localized heating of the cochlea and reduces power consumption of the device.
Cochlear Implants International. 10 Suppl 1: 43-7. doi:10.1179/cim.2009.10.Supplement-1.43. PMID 19195004.. ... A patient with implants in the jaws was fitted with a bone vibrator on one of his implants. When tested, the patient ... A sound processor sits on this abutment and transmits sound vibrations to the titanium implant. The implant vibrates the skull ... The implant in the bone is made of titanium and will osseointegrate. The hearing instrument is impedance-matched. ...
Niparko, John K. (2009-01-01). Cochlear Implants: Principles & Practices. Lippincott Williams & Wilkins. p. 53. ISBN ...
NAD Cochlear Implant Committee. "NAD Position Statement on Cochlear Implants (2000)". Cochlear Implants %7c National ... "Sound and Fury - Cochlear Implants - Essay". www.pbs.org. PBS. Archived from the original on 2015-07-06. Retrieved 2015-08-01. ... The United States-based National Association of the Deaf has a statement on its website regarding cochlear implants.[108] The ... Many in the deaf community strongly object to a deaf child being fitted with a cochlear implant (often on the advice of an ...
Cochlear implants have also been tested. Once the surgical implantation is complete, an infant has the opportunity to ... "Co-occurrence patterns in the babbling of children with a cochlear implant". The syllable in speech production.: 187-204. ...
Bharadwaj SV, Daniel LL, Matzke PL (2009). "Sensory-processing disorder in children with cochlear implants". Am J Occup Ther. ... or who have had cochlear implants placed.[80] and may have genetic conditions such as fragile X syndrome. ...
An early success in this field is the cochlear implant. A tiny device inserted into the inner ear, it replaces the ... After being implanted with a Massachusetts-based firm Cyberkinetics chip called BrainGate, a quadriplegic man was able to ... it is commonly known to mean the hardware or machine parts implanted in the human body and acting as an interface between the ...
Cochlear implant/BAHA Cochlear implant/BAHA (* Currently recognized by American Board of Medical Subspecialties) ...
Cochlear implant/BAHA Cochlear implant/BAHA (* Currently recognized by American Board of Medical Subspecialties) ... The earliest first bone transfer was done all the way back in 2000 BCE when the Peruvian priest implanted a metallic plate to ...
"Cochlear Implants". National Institute of Deafness and Other Communication Disorders. U.S. Department of Health and Human ... In contrast to hearing aids, which amplify sound, cochlear implants are designed to stimulate the auditory nerve. Tubulopathy ... Even though sensorineural deafness is irreversible, one treatment are cochlear implants, which includes a microphone and ...
... a cochlear implant may be surgically implanted. Cochlear implants bypass most of the peripheral auditory system to provides a ... "Cochlear Implants". NIH Publication No. 11-4798. National Institute on Deafness and Other Communication Disorders. February ... The prosthetic can be controlled by the brain using a direct implant or implant into various muscles. The two main methods for ... cochlear implant); or improving a patient's quality of life through cosmetic restoration after cancer surgery or an accident. ...
Recipients of cochlear implants for hearing loss are more at risk for pneumococcal meningitis.[24] ... "Can we prevent cochlear implant recipients from developing pneumococcal meningitis?" (PDF). Clinical Infectious Diseases. 46 (1 ...
"Factors That Affect the Social Well-Being of Children with Cochlear Implants". Cochlear Implants International. 9 (4). deafness ... Deaf activists call cochlear implants the audists' tool of cultural genocide that is wiping out the Deaf community. Groups such ... 4 (2). Dettman, Shani (2013). "Communication Outcomes for Groups of Children Using Cochlear Implants Enrolled in Auditory- ... cochlear implant surgery, the oralism approach to Deaf education, and the current mainstreaming trend suggest that there is ...
With this implant, sounds are not the same as sounds that a hearing person experiences. Since the Cochlear implant is in fact ... The cochlear implant is a device surgically implanted in the skull that provides stimulation to the nerve to promote hearing. ... Therefore the cochlear implant is not able to give all deaf people hearing and speech. During the mid to late 20th century, a ... The cochlear implant has a microphone, connecting cables, a speech processor, and a battery. The processor converts sounds into ...
For cochlear implant users, it is more difficult to understand unknown speakers and sounds. The perceptual abilities of ... Postlingually deaf children have better results than the prelingually deaf and adapt to a cochlear implant faster. In both ... Several months following implantation, children with cochlear implants can normalize speech perception. One of the basic ... Loizou, P. (1998). "Introduction to cochlear implants". IEEE Signal Processing Magazine. 39 (11): 101-130. Deutsch, Diana; ...
Can we prevent cochlear implant recipients from developing pneumococcal meningitis? (PDF). Clin. Infect. Dis. 2008年1月, 46 (1): ...
User of hearing aids and/or cochlear implant, suitable educational programs can be offered. Periodic surveillance is also ...
... because their parents chose an implant for them, because they find environmental sound useful, etc." Cochlear implants may ... Within Deaf communities, there is strong opposition to the use of cochlear implants and sometimes also hearing aids and similar ... For Hearing People Only' (3rd Addition) By Matthew S. Moore and Linda Levitan Woodcock, Kathryn (1992). Cochlear Implants vs. ...
"What is a cochlear implant?". Cochlearamericas.com. 2009-01-30. Retrieved 2009-06-04. Systems Control Technology, Inc, "Roadway ... implanted medical devices, and vehicles like electric cars, SCMaglev trains and automated guided vehicles. Specific ...
On December 16, 1977 he was part of the team responsible for implanting the first single-channel cochlear implant. They ... "History of the Cochlear Implant". ENT Today. The Triological Society. Retrieved 19 July 2016. "The Hearing Implant Company". ... "Journey to Developing MED-EL's Cochlear Implant: Interview with Dr. Ingeborg and Professor Erwin Hochmair, Founders of MED-EL ... In 1975, the Austrian Research Council supported Hochmair's cochlear implant project by a grant of 110,000 ATS, roughly ...
The round window is often used as an approach for cochlear implant surgery. It has also recently been used as a site to place ... leading to movement of the cochlear inner hair cells and thus hearing. If the round window were to be absent or rigidly fixed ( ...
Support for students with cochlear implants. • Interpreters are available for non-curricular activities including guidance ...
NAD Cochlear Implant Committee. "NAD Position Statement on Cochlear Implants (2000)". Cochlear Implants %7c National ... Middle ear implants or bone conduction implants can help with conductive hearing loss. People with cochlear implants are at a ... This implant is invisible under the intact skin and therefore minimises the risk of skin irritations. Cochlear implants improve ... Cochlear implants as well as bone conduction implants can help with single sided deafness. ...
From Cochlea to Cochlear Implants. Springer. ISBN 0-387-00496-3. Oghalai JS. The cochlear amplifier: augmentation of the ... The cochlear fluids: Perilymph and endolymph. In: Altschuler, R.A., Hoffman, D.W., Bobbin, R.P. (Eds.), Neurobiology of Hearing ... Floor of cochlear duct. Spiral limbus and basilar membrane. Section through the spiral organ of Corti (magnified) The reticular ... Nilsen KE, Russell IJ (1999). "Timing of cochlear feedback: spatial and temporal representation of a tone across the basilar ...
Niparko, John (2009). Cochlear implants : principles & practices (2nd ed.). Philadelphia: Wolters Kluwer Health/Lippincott ... Bushy cells are two types of second order neuron found in the anterior part of the ventral cochlear nucleus, the AVCN. They can ...
In 1969, William F. House, M.D.-brother of Howard-implanted the first three patients with the cochlear implant at House Ear ... Fretz, RJ (May 1985). "Design and function: a physical and electrical description of the 3M House cochlear implant system". Ear ... William F. House dies at 89; championed cochlear implant". Los Angeles Times. December 12, 2012. Retrieved December 26, 2012. ... in hearing sciences include the development of the first clinically useful cochlear implant and auditory brainstem implant as ...
They dispense, manage, and rehabilitate hearing aids and assess candidacy for and map cochlear implants. They counsel families ... Audiologists have training in anatomy and physiology, hearing aids, cochlear implants, electrophysiology, acoustics, ... cochlear implants, appropriate medical referrals) may be of assistance.. In addition to testing hearing, audiologists can also ... cochlear implant users and/or hearing aid users), from pediatric populations to veterans and may perform assessment of tinnitus ...
Cochlear Implants and Meningitis Vaccination: Fact Sheet for General Public ... People with cochlear implants are more likely to get bacterial meningitis than people without cochlear implants. In addition, ... Follow-up of cochlear implant use in patients who developed bacterial meningitis following cochlear implantationexternal icon. ... There is no evidence people with cochlear implants are more likely to get meningococcal meningitis than people without cochlear ...
A cochlear implant is not the same thing as a hearing aid. It is ... A cochlear implant is a small electronic device that helps ... A cochlear implant is not right for everyone. The way a person is selected for cochlear implants is changing as the ... WHO USES A COCHLEAR IMPLANT? Cochlear implants allow deaf people to receive and process sounds and speech. However, these ... A cochlear implant is not the same thing as a hearing aid. It is implanted using surgery, and works in a different way. ...
A cochlear implant may be an option. An audiologist can help you find out if a cochlear implant will help you. ... This will help him have success with the cochlear implants.. Where to Get a Cochlear Implant. There are cochlear implant ... About Cochlear Implants. A cochlear (koe-klee-er) implant is a device that can help if you have a severe hearing loss. It ... How a Cochlear Implant Works. A cochlear implant goes on both the outside and inside of your head. These parts work together to ...
A cochlear implant does not restore normal hearing. ... A cochlear implant can help individuals who are severely hard ... Cochlear Implants (Food and Drug Administration) * Cochlear Implants (National Institute on Deafness and Other Communication ... Cochlear Implants: Who Are They For? (Mayo Foundation for Medical Education and Research) Also in Spanish ... A cochlear implant is a small, complex electronic device that can help to provide a sense of sound. People who are profoundly ...
Includes list of doctors on the cochlear implant team.... ... What is a cochlear implant? Who is a candidate? What are the ... Cochlear Implants Master. "A new adventure of having to get a cochlear implant. I was scared. But once I met Dr. Sweeney and Dr ... If you are not a cochlear implant candidate or if you are not sure that you would like to commit to a cochlear implant, we are ... However, as cochlear implant technology improved over time, we now are able to implant patients who are still able to hear but ...
A cochlear implant is not the same thing as a hearing aid because ... A cochlear implant is a small electronic device that helps ... A cochlear implant is not the same thing as a hearing aid because it is surgically implanted and works in a different way. ... A cochlear implant is a small electronic device that helps people hear. It can be used for people who are deaf or very hard of ...
Hannoverschen Cochlear Implant-Gesellschaft e.V. Meeting on post cochlear implantation meningitis. Schiphol Airport, Amsterdam ... The study cohort included all 1,432 recipients of cochlear implant devices in Canada with implant dates during January 1995-- ... Bacterial Meningitis Among Cochlear Implant Recipients --- Canada, 2002. Samantha D. Wilson-Clark,1,2 S. Squires,1 S. Deeks1 1 ... implant affected incidence of BM infection, data were stratified by implant manufacturer and date of implant (i.e., before and ...
... www.cdc.gov/nip/issues/cochlear/cochlear-hcp.htm. References. * CDC. Cochlear implants and meningitis, frequently asked ... implant recipients (2). In the United States, approximately 21,000 persons have cochlear implants (3). Of the 23 cases for ... the occurrence of bacterial meningitis among cochlear implant recipients (1,2). The implant, as a foreign body, and the design ... Notice to Readers: Pneumococcal Vaccination for Cochlear Implant Recipients. CDC and the Food and Drug Administration, in ...
... had a tattoo of a cochlear implant to match hers, and their photo has gone viral on social media ... As a tribute to his brave six-year-old daughter, a father from New Zealand has had a tattoo of a cochlear implant to match hers ... When she was just four years old, Charlotte Campbell was fitted with a cochlear implant, an electronic device which stimulates ... The day before her operation, her father, Alistair, revealed an extraordinary tattoo of a cochlear implant on the left-hand ...
Bring backup for your cochlear implant, too. Youll need a spare (again, an older model will suffice), and spares for each of ... Wear your hearing aid and cochlear implant. Thats the easiest way not to leave them behind. Neither device will set off alarms ... So if youre one of the millions of Americans who wear hearing aids, or who have a cochlear implant, here is some hard-earned ... Cochlear implants use rechargeable batteries, so dont forget the charger and, of course, batteries (at least three). You also ...
The rate of cochlear fluid ingress through the fluid ingress means (21) is greater than the first rate of cochlear fluid ... The outer layer (16) has a first rate of cochlear fluid ingress therethrough and has at least one fluid ingress means (21) ... is made of a second material relatively stiffer than the first material and which dissolves or softens on exposure to cochlear ... A cochlear implant electrode assembly (10) comprising an elongate electrode carrier member (11), a bioresorbable stiffening ...
... at BellaOnline ... Cochlear implant Operation. Recovering from a Cochlear implant ... 1. Does it hurt to have a Cochlear implant?. 2. Can you feel the Cochlear implant once it s inside your head?. 3. Does it hurt ... Tips for music with a Cochlear Implant. Are Cochlear Implants for adults?. Archives , Site Map ... 4. Can you feel the electrical impulses the implant creates inside your head?. Does it hurt to have a Cochlear implant? Does ...
"Temporal bone microdissection for anatomic study of cochlear implant electrodes," Cochlear Implants International, vol. 6, no. ... "Intra-operative monitoring of cochlear function during cochlear implantation," Cochlear Implants International, vol. 10, no. 1 ... In 1995, the University of Iowa Cochlear Implant research team along with the Cochlear Corporation (Lane Cove, Australia) ... L. A. J. Reiss, C. W. Turner, S. R. Erenberg, and B. J. Gantz, "Changes in pitch with a cochlear implant over time," Journal of ...
Hearing aids or cochlear implants? Both provide solutions to restore hearing. Compare their differences, like cost, benefits, ... Cochlear implants can affect MRI scans. Removable for medical procedures. Cochlear implants. Cochlear implants are small ... Cochlear implant pros and cons. Benefits of cochlear implants. Cochlear implants can be life-changing and come with several ... Medicare and most insurance plans cover cochlear implants.. Disadvantages of cochlear implants. Cochlear implants may also have ...
The price of a cochlear implant can go as high as $100,000, the American Academy of Otolaryngology said in 2014. However, most ... Factors that go into the cost of a cochlear implant are the implant itself, evaluation, surgery and rehabilitation, according ... The price of a cochlear implant can go as high as $100,000, the American Academy of Otolaryngology said in 2014. However, most ... The rehabilitation aspect of getting a cochlear implant involves therapy to attain or relearn the sense of hearing, says the ...
... compare ratings and use verified reviews to find the best cochlear implant companies. ... RONDO single-unit cochlear implant: MED-ELs RONDO cochlear implant is a single-unit implant that is worn off the ear. It is ... was the first cochlear implant company. It offers cochlear implants, bone-anchored hearing aids and middle ear implants for ... Cochlear Read 11 Reviews Founded in 1981, Cochlear Limited is a leading manufacturer of Nucleus® cochlear implants and other ...
Cochlear Implants and Meningitis Vaccination: FAQs for General Public ... CDC recommends pneumococcal vaccination for adults with cochlear implants.. All adults with cochlear implants should receive 1 ... including those with cochlear implants.. Children younger than 2 years old with cochlear implants should receive PCV13 ... If an older child with cochlear implants did not get the recommended doses as an infant and young child, they may need to ...
CDC and FDA carried out a study to learn more about a possible link between cochlear implants and bacterial meningitis in ... 2002 Study of the Risk of Bacterial Meningitis in Children with Cochlear Implants. Many people have received cochlear implants ... The study found that even two years after implant surgery, children with cochlear implants with a positioner were at greater ... 2002 to learn more about a possible link between cochlear implants and bacterial meningitis in children with cochlear implants ...
The cognitive function of older adults with profound hearing loss significantly improved after undergoing cochlear implantation ... those with more severe hearing loss may require a cochlear implant. A cochlear implant is a small electronic device that ... Cochlear implants may improve cognitive decline in older adults. Written by Honor Whiteman. on March 13, 2015 ... Cochlear implants were found to improve the cognitive function, speech perception and depressive symptoms of older adults with ...
What Is a Cochlear Implant?. A cochlear implant is a surgically implanted device that helps overcome problems in the cochlea ( ... How a Cochlear Implant Works. Knowing how a cochlear implant works may help kids better understand their new bionic ear and the ... Cochlear Implants. Sometimes called a "bionic ear," the cochlear implant offers the hope of gaining or restoring the ability to ... Cochlear Implant Surgery. Surgery for a cochlear implant takes 2-4 hours and uses general anesthesia (which keeps a patient ...
... whether that experience was through normal means or with a cochlear implant. Children who received the implant by the age of 13 ... Houston and his colleagues are collaborating with other cochlear implant centers to launch a study with more children to ... before cochlear implantation, exhibited word-learning skills similar to the early implanted children, Dr. Houston said. ... months performed similarly to their normal-hearing counterparts while children who received a cochlear implant later performed ...
cochlear implant surgery is very safe, but any operation comes with risks. problems can include bleeding, infections, and side ... What are the disadvantages and risks of cochlear implants?. ANSWER Cochlear implant surgery is very safe, but any operation has ... FDA: "Benefits and Risks of Cochlear Implants," "Cochlear Implants: Before, During and After Surgery." ... FDA: "Benefits and Risks of Cochlear Implants," "Cochlear Implants: Before, During and After Surgery." ...
But cochlear implants do not hold a miracle cure for deafness. "There is a lot of variability in cochlear implant outcomes," ... Programming the cochlear implant processor is just the first step. Getting an implant is like being given the keys to a car but ... "Many times, school personnel have little experience with children who use a cochlear implant." The implant center can assist by ... As the average performance levels with a cochlear implants increase, we have started implanting patients with more hearing." ...
But when that implant also failed - what was she to do? This is her story. - Is a cochlear implant worth it? - Deafness at ... Robyn was deaf from an early age but she became one of the first in NZ to have a Cochlear Implant. When it failed after 15 ... What is a cochlear implant?. Cochlear implant outcomes. Hearing on special occasions. Related Articles. Editors Picks Articles ... So, if you can have a cochlear implant, then have one. Heres my story…. I was originally implanted in 1993. I was the 8th ...
The ACI Alliance educates health care plan executives and government officials about cochlear implant technology, its economic ... driving heightened awareness and advocating for improved access to cochlear implants for patients of all ages across the United ... Alliance is committed to eliminating barriers to cochlear implantation by sponsoring research, ... The American Cochlear Implant (ACI) Alliance is committed to eliminating barriers to cochlear implantation by sponsoring ...
  • A survey was mailed to 1,432 Canadian CIRs who had received implants during January 1995--July 2002 to assess occurrence of postimplant BM infection. (cdc.gov)
  • CDC and the Food and Drug Administration learned this from a 2002 study of children with cochlear implants. (cdc.gov)
  • CDC and the Food and Drug Administration (FDA) carried out a study in 2002 to learn more about a possible link between cochlear implants and bacterial meningitis in children with cochlear implants. (cdc.gov)
  • The implant with a positioner was voluntarily taken off the market by the manufacturer in July 2002. (cdc.gov)
  • After the 2002 study was completed, the FDA continued to receive reports of bacterial meningitis in children with cochlear implants. (cdc.gov)
  • In October 2002, CDC recommended that all persons with cochlear implants receive age-appropriate pneumococcal vaccination with 7-valent pneumococcal conjugate vaccine (PCV7) (Prevnar ® ), 23-valent pneumococcal polysaccharide vaccine (PPV23) (Pneumovax ® ), or both according to the Advisory Committee on Immunization Practices (ACIP) schedules for persons at high risk ( 1 ). (cdc.gov)
  • Cochlear was named Australia's most innovative company in 2002 and 2003, and one of the world's most innovative companies by Forbes in 2011. (wikipedia.org)
  • Niparko was recognized as a leading authority on cochlear implants, and notably operated on former Miss America Heather Whitestone in 2002. (wikipedia.org)
  • For infants with severe-to-profound hearing loss, you have to teach them to understand the meaning of sound and then compare whether they function as well as a child with a cochlear implant. (asha.org)
  • It is a goal for some audiologists to test and fit a deaf child with a cochlear implant by six months of age, so that they don't get behind in learning language. (wikipedia.org)
  • Cochlear introduced IWantYoutoHear.com in the spring of 2016 to offer parents and caregivers seeking answers about cochlear implants or beginning their journey into the cochlear implant process the information they need to make informed decisions. (healthyhearing.com)
  • Dr. John K. Niparko (1955 - April 25, 2016) was an American surgeon-scientist who specialized in cochlear implants, and edited, and wrote several chapters of, the book Cochlear Implants: Principles & Practices. (wikipedia.org)
  • CDC issued these recommendations on the basis of preliminary data suggesting an increased risk for pneumococcal meningitis in persons with cochlear implants. (cdc.gov)
  • Because information about Streptococcus pneumoniae serotypes causing pneumococcal meningitis in persons with cochlear implants is limited, providers are encouraged to send isolates to their state health department, which can forward isolates to CDC, where serotyping can be performed to determine whether the type is included in the vaccines. (cdc.gov)
  • It very nicely fills a gap that current cochlear implant resources, which primarily focus on speech processing, anatomical, and behavioral outcome information, have not typically provided. (pluralpublishing.com)
  • 7 Thus the purpose of this article is to provide a review of current cochlear implant criteria for adults and children so that a broader range of hearing health professionals are able to identify those individuals who may be able to take advantage of this technology. (lww.com)
  • Until recently I have always asked prospective cochlear implant audiologists, AuD externs, and student clinicians the question, "What are the current cochlear implant criteria for adults and children? (lww.com)
  • Sladen and Ricketts (2015) report that given current cochlear implant (CI) technology, the majority of post-lingually deafened adults achieve 80 percent word recognition (in quiet) after only six months experience with a CI. (audiology.org)
  • Currently, three different cochlear implants are approved for clinical use in Canada. (lhsc.on.ca)
  • Synchronizing two different cochlear signals from two cochlear implants, one from each ear can help the deaf, hear in stereo, just like normal ears, finds a new study. (medindia.net)
  • Mayo Clinic offers the latest technology available for cochlear implants, including hybrid cochlear implants. (mayoclinic.org)
  • Individuals With Partial Hearing Loss May Benefit From Hybrid Cochlear Implant - Northwestern Memorial physicians participating in investigative study. (disabled-world.com)
  • Now, Groves is hearing much better than he has in 30 years, thanks to an experimental hybrid cochlear implant. (disabled-world.com)
  • We are hopeful that the hybrid cochlear implant will provide a subset of people who were previously not candidates for an implantable device the opportunity to test the device to determine if they can experience sound again," said Northwestern Medicine neurotologist Andrew Fishman, MD, principal investigator of the study, staff in the departments of otolaryngology and neurosurgery at Northwestern University's Feinberg School of Medicine, and Mr. Groves' cochlear implant surgeon. (disabled-world.com)
  • Individual is able to participate in a post-hybrid cochlear implant rehabilitation program in order to achieve benefit from the hybrid cochlear implant device. (unicare.com)