Colour association and "colour amnesia" in aphasia.

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Abstract
Color association performance of 50 aphasic patients was investigated by a test in which they identified the characteristic colors of objects shown in line drawings. All aphasics with defects in color association were impaired in reading comprehension. Some (33%) retained normal aural comprehension. Approximately half the aphasics with receptive language impairment performed normally in color association. Color amnesia may be the result of a specific cognitive disturbance which is also responsible for a subtype of aphasic alexia.

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