Gerstmann’s syndrome

a set of four symptoms associated with lesions of a specific area of the (usually left) parietal lobe. They are inability to recognize one’s individual fingers (finger agnosia; see tactile agnosia), inability to distinguish between the right and left sides of one’s body (right–left disorientation), inability to perform mathematical calculations (acalculia), and inability to write (agraphia). The existence of Gerstmann’s syndrome as a true independent entity is subject to debate. [Josef G. Gerstmann (1887–1969), Austrian neurologist]

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Psychology term of the day

March 18th 2025

auxiliary ego

in psychodrama, a group member, other than the therapist, who assumes the role of a significant figure in the protagonist’s life.