How Many Types Of Visual Agnosia Are There?

Visual agnosia is the inability to blemish objects or faces, despite eye processes working correctly in a tolerant. It is non due(p) to problems caused by age, talking to or mental deterioration, but is unremarkably caused by deepen to the area below the occipital gussy up in the brain, and to the areas bordering the occipital region such as the parietal area, which are accountable for projection in vision. (Gleitman, Fridlund & Reisberg 2001: 29¬) Neuropsychologists principally distinguish optic agnosias as either associative agnosias or apperceptive agnosias, impairment created by Lissauer (1890). Associative agnosia, according to Lissauer, occurs when a person cannot deal an object or face, but appears to mother fully useful optic perception. Apperceptive agnosia is characterised by a unhurried with victimized visual perception, and therefore they are futile to see objects or faces correctly, and so leads to a lack of recognition. (Farah 2004: 4)This unde rtake will search apperceptive and associative agnosias using human face studies, as well as defining other poor male child types of visual agnosias, and finally determining how many forms of agnosia exist. Associative visual agnosia can be defined by Rubens and Bensons 1971 patient study into a middle ages man who had brain damage due to a sharp blood pressure drop.

Whilst linguistic process and most mental abilities had not been damaged, he seemed unable to roll in the hay almost all visually presented objects. The patient, however, could identify the object by and by touching it, and could name geometrica l forms such as squares and circles. He was ! diagnosed with associative visual agnosia, as while he could not identify a visual object, he was slake sure-footed of drawing them very well. He was able to recognise downhearted details in drawings, such as complex nonfigurative patterns, ad how these patterns differed. His inability to recognise objects was caused by a lesion in the left hemisphere, on the surface of the brain below the occipital bone, and also...If you want to get a full essay, order it on our website: OrderCustomPaper.com

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