Sensory phantom perceptual disorder. Medical search. Frequent questions

Physiological illusions, such as the afterimages following bright lights, or adapting stimuli of excessively longer alternating patterns (contingent perceptual aftereffect), are presumed to be the effects on the eyes or brain of excessive stimulation or interaction with contextual or competing stimuli of a specific type-brightness, color, position, tile, size, movement, etc. (wikipedia.org)
These areas act as a central gatekeeping system for perceptual sensations, which evaluate the affective meaning of sensory stimuli - whether produced externally or internally - and modulates information flow in the brain. (healthrising.org)
These include spatial neglect syndromes, where an individual does not attend to visual, auditory, or sensory stimuli presented from one side of the body. (bvsalud.org)
Hearing and seeing start as separate sensory departments and become information that informs a broad range of tasks like coordination or localizing outside stimuli. (nhojmorley.com)

Tinnitus is a sensory phantom perceptual disorder in which individuals hear a humming, buzzing, piercing, or other noise that does not correspond with physical sources. (medscape.com)
This work lead to a particular interest in understanding the abnormal perception of 'phantom' sensations such as tinnitus, and how such sensations might be modulated by experience. (nottingham.ac.uk)

Phantom limb pain as a perceptual correlate of cortical reorganization. (wroclaw.pl)
[15] A few years later, Carl Wernicke hypothesized a cortical map capable of collecting and processing sensory inputs from every point of the body. (cloudfront.net)
results: lifus can noninvasively influence human brain activity by suppressing cortical evoked potentials, influencing cortical oscillatory dynamics, and altering outcomes of sensory/motor tasks compared to sham sonication. (cognitive-liberty.online)

A neurological disorder in which a sensory stimulus, usually tactile but more rarely other sensory modalities, is misperceived in a location distant from the original stimulus. (nih.gov)
A condition in which a person experiences a given stimulus, usually tactile but more rarely other sensory modalities, on the corresponding opposite side of the body from the side of the stimulation. (nih.gov)
Use of matched tasks in multiple sensory modalities is a logical approach to address this issue. (neurotechcenter.org)

It can be induced experimentally by manipulating the visual perspective of the subject and also supplying visual and sensory signals which correlate to the subject's body. (wikipedia.org)

We wondered whether touch sensations in the phantom arm could be influenced by visual input. (scientificamerican.com)
Some people call these phantom sensations, but they are real, produced by a brain that continues to 'feel' the initial injury because it cannot down-regulate the sensations enough," he says. (healthrising.org)

Body image disturbance ( BID ) is a common symptom in patients with eating disorders and is characterized by an altered perception of one's own body . (cloudfront.net)
The disturbance is associated with significant bodily dissatisfaction and is a source of severe distress, often persisting even after seeking treatment for an eating disorder, [3] [4] and is regarded as difficult to treat. (cloudfront.net)
[6] However, there is no hard evidence that current treatments for body image disturbance effectively reduce eating disorder symptoms. (cloudfront.net)
The German-American psychiatrist Hilde Bruch was the first physician to describe body image disturbance in eating disorders accurately. (cloudfront.net)
They are often exquisitely remembered and may be a prelude to a complex partial or tonic-clonic seizure, in which case the simple partial seizure is referred to as an aura (a perceptual disturbance). (wanderingsolace.com)

These interactions between the senses, in addition to educating us about brain mechanisms for information processing, may also provide a useful tool in rehabilitation for neurological disorders. (scientificamerican.com)
Therefore, in the history of medicine, distortions in the perception of one's body have mainly occurred in patients with neurological damage or with amputated limbs and a consequence of phantom limb syndrome . (cloudfront.net)
and the development of novel neuromodulatory techniques for the treatment of movement disorders, epilepsy, pain, and other neurological diseases. (stanford.edu)

Optical illusions, as well as multi-sensory illusions involving visual perception, can also be used in the monitoring and rehabilitation of some psychological disorders, including phantom limb syndrome and schizophrenia. (wikipedia.org)

Also the main agenda of this conference is to bring together world-leading academics, practitioners, industry leaders, policymakers, and business professionals from the fields of Neuroscience and Brain Disorders to develop practical solutions for current challenges in these fields. (continuumforums.com)
In both disorders, the brain has been reorganized in response to an injury in its sensory apparatus, says Josef Rauschecker, PhD, DSc, director of the Laboratory for Integrative Neuroscience and Cognition at GUMC. (healthrising.org)
Derek trained as a nurse at the University of Brighton before moving to The University of Manchester where he completed a BSc (Hons) Neuroscience, a Master of Research in Biological Sciences, and finally a PhD in Sensory Neuroscience. (nottingham.ac.uk)

His PhD sought to understand how olfactory sensory information is processed at the level of the single olfactory nerve cells and simple neural systems in an insect model, using a combination of genetic, electrophysiology, and behavioural techniques. (nottingham.ac.uk)
Olfactory brain activations in patients with Major Depressive Disorder. (uni-jena.de)

In the October issue of Trends in Cognitive Sciences , researchers say identifying the problem is the first step to developing effective therapies for these disorders, which afflict millions of people. (healthrising.org)
Cognitive disorders characterized by an impaired ability to perceive the nature of objects or concepts through use of the sense organs. (bvsalud.org)
Cognitive disorganization (CD) is a key symptom dimension of psychosis that emerges most commonly in adolescence, predicts the onset and severity of psychotic disorders, and transcends DSM diagnostic categories. (unc.edu)
Verbally based dichotic-listening experiments and reproduction-mediated response-selection strategies have been used for over four decades to study perceptual/cognitive aspects of auditory information processing and make inferences about hemispheric asymmetries and language lateralization in the brain. (neurotechcenter.org)

Yet another example of vision influencing touch occurs in patients with phantom limbs. (scientificamerican.com)

Test procedures using dichotic digits have also been used to assess for disorders of auditory processing. (neurotechcenter.org)

Ambiguous illusions are pictures or objects that elicit a perceptual "switch" between the alternative interpretations. (wikipedia.org)

[1] [2] For it to occur, bottom-up perceptual mechanisms, such as the input of visual information, must override top-down knowledge that the certain body (or part) does not belong. (wikipedia.org)
The results support the notion that bottom-up perceptual mechanisms, such as those involving the premotor cortex and cerebellum , can temporarily override top down knowledge therefore resulting in a radical illusion of transfer of body ownership. (wikipedia.org)

Her research interests include psychobiological aspects of treating chronic pain, neural correlates of learning and memory, the treatment of anxiety, depression, substance abuse and personality disorders, as well as neuropsychological rehabilitation. (wroclaw.pl)

In some cases, this sensation seemed to alleviate the pain associated with the phantom. (scientificamerican.com)
Body transfer illusion has been used in order to treat the experience of phantom limb pain by giving visual feedback of the missing limb . (wikipedia.org)
This paper seeks to analyse the psychometric and structural properties of the Multidimensional Pain Inventory (MPI) in a sample of temporomandibular disorder patients. (biomedcentral.com)
The MPI has been demonstrated to be a reliable tool for the assessment of pain in temporomandibular disorder patients. (biomedcentral.com)
Phantom limb pain - a case of maladaptive central nervous system plasticity? (wroclaw.pl)
One increasingly popular but still controversial way to deal with this apparent paradox is to defend a perceptual or representational view of pain, according to which feeling pain is in principle no different from undergoing other standard perceptual processes like seeing, hearing, touching, etc. (stanford.edu)
Although it was the treatment of pain as a sensory-discriminative experience that had dominated the philosophical discussions throughout most of the twentieth century, attention to pains' affective-motivational dimension has gained prominence in recent years. (stanford.edu)
Chronic pain is as volatile and hard to predict as weather, jostled by countless unknowable systemic variables - but especially the potent perceptual filters of the brain. (painscience.com)
Pain is not just jostled by many systemic variables, but especially the potent perceptual filters of the brain. (painscience.com)

Video EEG monitoring can be used to classify the type of seizure or syndrome and it can also provide additional information regarding related conditions such as sleep disordered breathing (Phillips et al, 2013). (wanderingsolace.com)

This study looked at a group of women in a town in central eastern Turkey, and determined that women who suffered trauma in childhood or had post-traumatic stress disorder were more likely to say they'd experienced things like possession, precognition, and extra-sensory perception. (grunge.com)
The subconscious glean is contained in its own sampling of perception with which a reaction is coordinated from a plethora of sensory input. (nhojmorley.com)

To date, prospective observation of onset, i.e., the transition from vulnerability to disorder has not been possible because most persons at true risk cannot be identified premorbidly. (unc.edu)

This study is the first to explore whether a brain-based vulnerability to chronic sensory CIPN exists. (researchgate.net)
NIH Abstract: Schizophrenia and other forms of psychosis affect approximately 3% of the population with a disorder that is usually chronic and disabling. (unc.edu)

[7] [8] Furthermore, pharmacotherapy is ineffective in reducing body misperception and it has been used to focus on correlated psychopathology (e.g., mood or anxiety disorders ). (cloudfront.net)
I am extremely interested in addressing depression and anxiety disorders in patients who have recently received a cancer diagnosis. (duke.edu)

He has worked on drug development for these disorders and has established the importance of monoamine oxidase and brain iron metabolism for brain function and dysfunction. (continuumforums.com)
Examples are exposure and extinction training, sensory discrimination training, mirror treatment, virtual reality applications, brain-computer interfaces, as well as combinations of these treatments with pharmacological interventions. (wroclaw.pl)
According to Edelman we should not think of brain development, especially in matters such as perceptual categorization and memory, as a matter of the brain learning from the impact of the environment. (nybooks.com)

Posterior portion of the CEREBRAL HEMISPHERES responsible for processing visual sensory information. (lookformedical.com)
Recent research has suggested that language regarding visual and motoric content may engage some of the same systems through mental simulation, rather than engaging separate systems for language and perceptual systems. (khanacademy.org)

After amputation of an arm, the vast majority of patients continue to feel vividly the presence of the missing arm, a phenomenon termed phantom limb in the late 1800s by physician and author Silas Weir Mitchell. (scientificamerican.com)

Confirmatory Factor Analysis was carried out to test the MPI structure section by section in a sample of 114 temporomandibular disorder patients. (biomedcentral.com)
The human cost of these disorders is immense, yet treatment options for sufferers are currently limited, with many patients failing to respond sufﬁciently to available interventions and drugs. (philarchive.org)

Many people report that their phantom limb is frozen, paralyzed in a constant or fixed position, and that this experience is sometimes painful. (scientificamerican.com)
The misinterpretation of a real external, sensory experience. (nih.gov)

When we report them by uttering sentences like (1) through (8), we seem to make perceptual reports. (stanford.edu)
Predictably, the half who thought they were visiting a haunted theater were more likely to report "more intense perceptual experiences," which is presumably science-speak for seeing or sensing the presence of something other-worldly. (grunge.com)

In mammals, respiratory-locked hippocampal rhythms are implicated in the scaffolding and transfer of information between sensory and memory networks. (mpi.nl)

These disorders represent a significant problem within the field of oral medicine, and are prevalent enough to constitute a public health concern. (biomedcentral.com)

Similarly, Edelman wants to extend an account of the development of perceptual categories-categories ranging from shapes, color, and movement to objects such as cats and dogs-into a general account of consciousness. (nybooks.com)
Now how is all this supposed to give rise to perceptual categories and generalizations? (nybooks.com)

We positioned a mirror on the table in front of a patient, along his midline, and asked him to position his intact arm and stump/phantom hand symmetrically on either side of the mirror ( a ). (scientificamerican.com)

Second, not all transient shaking episodes are actually seizures - there are several mimics out there (PNEA, syncope, movement disorders, and sleep disorders). (wanderingsolace.com)

What if our personal perceptual habits determined how we consume information about the world and the manner in which we attend to info as thoughts? (nhojmorley.com)

When he looked at the reflection of his normal hand in the mirror, he experienced the phantom being visually resurrected. (scientificamerican.com)

Ideally, tests of perceptual abilities should be relatively free of such effects. (neurotechcenter.org)

Mental and behavioral disorders represent a signiﬁcant portion of the public health burden in all countries. (philarchive.org)

Perez, V. true E. Given the original Work, the detectors perceptual model computes the Mongraasano slacks by which the message pattern was scaled during embedding. (forexrin.com)

Anatomy4

Diseases13

Chemicals and Drugs5

Analytical, Diagnostic and Therapeutic Techniques and Equipment50

Psychiatry and Psychology34

Phenomena and Processes9

Disciplines and Occupations3

Technology, Industry, Agriculture2

Information Science17

Health Care13

Stimuli4

Tinnitus2

Cortical3

Modalities3

Correlate1

Sensations2

Disturbance5

Neurological3

Limb syndrome1

Neuroscience3

Olfactory2

Cognitive4

Limbs1

Auditory1

Illusions1

Mechanisms2

Substance abuse1

Pain9

Syndrome1

Perception2

Onset1

Chronic2

Anxiety2

Brain3

Visual2

Phenomenon1

Patients2

Experience2

Report2

Memory1

Problem1

Categories2

Side1

Movement1

World1

Mirror1

Effects1

Represent1

True1