agnosia
Also known as monomodal visual amnesia, primary visual agnosia, visual amnesia
thumb|250px|Picture of the ventral and dorsal streams. The ventral stream is depicted in purple and the dorsal stream is depicted in green.
Key facts
- Medical condition (new).name
- Agnosia
- Medical condition (new).specialty
- Psychiatry, Neurology, Neuropsychology
via Wikipedia infobox
Research
4,239 papersvia PubMed
~19 min read
Article
16 sectionsContents
- Types
- Visual agnosia
- Speech agnosia
- Causes
- Diagnosis
- Pure alexia
- Prosopagnosia
- Treatment
- Verbal strategies
- Alternate cues
- Organizational strategies
- Current research
- History
- See also
- References
- External links
thumb|250px|Picture of the ventral and dorsal streams. The ventral stream is depicted in purple and the dorsal stream is depicted in green.
Agnosia is a neurological disorder characterized by an inability to process sensory information. Often there is a loss of ability to recognize objects, persons, sounds, shapes, or smells while the specific sense is neither defective nor is there any significant memory loss. It is usually associated with brain injury or neurological illness, particularly after damage to the occipitotemporal border, which is part of the ventral stream. Agnosia affects only a single modality, such as vision or hearing. More recently, a top-down interruption is considered to cause the disturbance of handling perceptual information.