Synonyms
Visual-perception; Visuoperception
Definition
Visuoperceptual ability enables recognition of objects based on their form, pattern, and color. The visuoperceptual or “what” system is functionally and neuroanatomically distinct from the “where” system, which involves processing of visuospatial information. An occipito-temporal pathway known as the “ventral stream” is responsible for identifying “what” an object is, while a dorsal stream occipito-parietal pathway processes where information is located in space (Ungerleider and Mishkin 1982). Specifically, the visuoperceptual system gets input from “type P” retinal ganglion cells which project to the dorsal layers of the lateral geniculate nucleus followed by inferior occipital and temporal projections. Impairments in visuoperceptual abilities result in visual agnosias and deficits in form or pattern discrimination.
Historical Background
Dr. Arthur Benton recognized Hughlings Jackson as the first neurologist to identify...
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Irani, F., Foreman, S. (2018). Visuoperceptual. In: Kreutzer, J.S., DeLuca, J., Caplan, B. (eds) Encyclopedia of Clinical Neuropsychology. Springer, Cham. https://doi.org/10.1007/978-3-319-57111-9_1419
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DOI: https://doi.org/10.1007/978-3-319-57111-9_1419
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