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What have studies of visual object agnosia and prosopagnosia contributed…
What have studies of visual object agnosia and prosopagnosia contributed to our understanding of visual recognition?
Distributed view
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Prosopagnosia
LOC being used in face perception there is evidence before- look at LOC argument is specifically for object recognition
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Modular view
Visual object Agnosia
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object recognition is a bilateral process as LOC (lateral occipital cortex) is in the right and left hemisphere
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Prosopagnosia
Sheep boy
can recognise sheep faces but not familiar or novel human faces this could suggest that human faces are very specific
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What hasn't it told us
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Both prosopagnosic and Visual agnosia are idiographic content not many people have very pure forms of either of these conditions there is usually several impairments
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Key terms to define
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Distributed view
discrimination depends on dispersed but functionally overlapping representations spread across the visual cortex
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Prosopagnosia
prosopagnosia is also known as face blindness is a cognitive disorder in facial perception the individual cannot recognise familiar faces including self-recognition but object recognition and general intellect intact.
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Visual Object agnosia
disorder of recognition confined to the visual realm, in which a patient cannot arrive at the meaning of some or all categories of previously known nonverbal visual stimuli, despite normal or near-normal visual perception and intact alertness, attention, intelligence, and language.
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