PSYCH 345 Study Guide - Agnosia, Fusiform Gyrus, Usury
Document Summary
Study guide will be distributed next week. Outline: explaining visual agnosia, domain-specificity: prosopagnosia, domain specialized processors, intact dorsal stream & shape for action. * structural description: representations of shape that are composed of parts and the spatial relations among the parts. Task to study objects and their parts. Integrative agnosia (ia)- impairment encoding relations among parts. Sm can discriminate part change, not relation change. percepts undergo many transformations so recognition deficits are variable. Apperceptive agnosia - early deficit, affecting all domains (objects, faces, words). Can be domain-specific (word or face processing may be spared) Deficit in grouping and encoding relations among parts. Associative agnosia - later deficits of association. Word or face processing may be spared. Domain-specificity of visual agnosias >>> suggests domain-specialized processors. Case c. k. can recognize faces but nothing else! Bilateral ventral path lesions (also evident in rare cases of unilateral rh damage) Aspects of face processing may be spared. Non-face stimuli may be affected in some cases.
