Central achromatopsia
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TL;DR
The neuropsychologic, neuroanatomic, and neurophysiologic correlates of achromatopsia were studied in two patients andbral evoked responses produced by pattern shift stimulation were normal for black and white but abnormal for red and green, when stimulation was given in the a chromatopsic field.
Abstract
The neuropsychologic, neuroanatomic, and neurophysiologic correlates of achromatopsia were studied in two patients. Prosopagnosia accompanied the color perception defect in the bilateral case but not in the unilateral one. No other neuropsychologic disturbance was present in either case. The lesions compromised the ventromedial sector of the occipital lobe in both cases. Cerebral evoked responses produced by pattern shift stimulation were normal for black and white but abnormal for red and green, when stimulation was given in the achromatopsic field.