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prosopagnosia

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prosopagnosia /proso·pag·no·sia/ (-pag-no´se-ah) inability to recognize faces due to damage to the underside of both occipital lobes.
pros·o·pag·no·sia (prs-pg-nzh, -z-)
n.
An inability or difficulty in recognizing familiar faces; it may be congenital or result from injury or disease of the brain.

prosopagnosia [pros″o-pag-no´se-ah]
inability to recognize the faces of other people or one's own features in a mirror, due to damage to the underside of both occipital lobes.

prosopagnosia 
Inability to recognize faces. It may be due to a lesion in one area of the inferotemporal (IT) cortex. See agnosia.

prosopagnosia
Neurology Inability to recognize familiar faces unexplained by defective visual acuity or ↓ consciousness or alertness


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Studies conducted in the past have shown that about 2 per cent of the population suffers from "face-blindness", or prosopagnosia, a condition characterized by great difficulty in recognizing faces.
I can now say that disorders like prosopagnosia (the failure to recognize faces) or simultanagnosia (the failure to recognize individual objects in a complex environment) are visual dysfunctions, rather than simple visual impairments.
Prosopagnosia is a condition informally known as face blindness.
 
 
 
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