finger agnosia

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A form of autotopagnosia, usually associated with a lesion in the posterior region of the dominant hemisphere, characterized by a primary inability to recognize, identify, differentiate, name, select, or indicate individual fingers of either hand. If a person with finger agnosia is touched on either one or two fingers, each finger being touched in either one or two places, such a person is unable to state how many fingers are being touched. See also agnosia, Gerstmann syndrome.

Subjects: Psychology.

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