Loudness Perception
The perceived attribute of a sound which corresponds to the physical attribute of intensity.
Hyperacusis
Perception
Tinnitus
A nonspecific symptom of hearing disorder characterized by the sensation of buzzing, ringing, clicking, pulsations, and other noises in the ear. Objective tinnitus refers to noises generated from within the ear or adjacent structures that can be heard by other individuals. The term subjective tinnitus is used when the sound is audible only to the affected individual. Tinnitus may occur as a manifestation of COCHLEAR DISEASES; VESTIBULOCOCHLEAR NERVE DISEASES; INTRACRANIAL HYPERTENSION; CRANIOCEREBRAL TRAUMA; and other conditions.
Auditory Threshold
The audibility limit of discriminating sound intensity and pitch.
Psychoacoustics
The science pertaining to the interrelationship of psychologic phenomena and the individual's response to the physical properties of sound.
Acoustic Stimulation
Use of sound to elicit a response in the nervous system.
Speech Perception
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.
Auditory Perception
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.
Pitch Perception
A dimension of auditory sensation varying with cycles per second of the sound stimulus.
Speech Acoustics
The acoustic aspects of speech in terms of frequency, intensity, and time.
Sound
Visual Perception
Sound Spectrography
The graphic registration of the frequency and intensity of sounds, such as speech, infant crying, and animal vocalizations.
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)
Speech Articulation Tests
Hearing
The ability or act of sensing and transducing ACOUSTIC STIMULATION to the CENTRAL NERVOUS SYSTEM. It is also called audition.
Hearing Loss
Social Perception
Dysarthria
Disorders of speech articulation caused by imperfect coordination of pharynx, larynx, tongue, or face muscles. This may result from CRANIAL NERVE DISEASES; NEUROMUSCULAR DISEASES; CEREBELLAR DISEASES; BASAL GANGLIA DISEASES; BRAIN STEM diseases; or diseases of the corticobulbar tracts (see PYRAMIDAL TRACTS). The cortical language centers are intact in this condition. (From Adams et al., Principles of Neurology, 6th ed, p489)
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.
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.
Audiometry, Pure-Tone
Measurement of hearing based on the use of pure tones of various frequencies and intensities as auditory stimuli.
Phonation
Perceptual Masking
Aphonia
Complete loss of phonation due to organic disease of the larynx or to nonorganic (i.e., psychogenic) causes.
Hearing Loss, Bilateral
Partial hearing loss in both ears.
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.
Evoked Potentials, Auditory
The electric response evoked in the CEREBRAL CORTEX by ACOUSTIC STIMULATION or stimulation of the AUDITORY PATHWAYS.
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)
Cues
Speech Intelligibility
Ability to make speech sounds that are recognizable.
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)
Correction of Hearing Impairment
Procedures for correcting HEARING DISORDERS.
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.