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Psychiatry · Organic mental disorders: Balint syndrome
Sample itemAfter bilateral parieto-occipital infarcts, a 66-year-old man can see only one object at a time in a scene, misreaches when trying to grasp an object under visual guidance, and cannot voluntarily shift his gaze to a target. Which syndrome is this?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
A. Balint syndrome
Balint syndrome is the triad of simultanagnosia, optic ataxia and oculomotor apraxia, caused by bilateral damage to the parieto-occipital junction. Gerstmann syndrome, by contrast, consists of agraphia, acalculia, finger agnosia and left-right disorientation from a dominant angular gyrus lesion.
Option by option
A. Balint syndrome (correct)
Correct. Simultanagnosia, optic ataxia and gaze apraxia define the syndrome.
B. Anton syndrome
Anton syndrome is denial of blindness in cortical blindness.
C. Gerstmann syndrome
Gerstmann syndrome comprises agraphia, acalculia, finger agnosia and right-left confusion.
D. Kluver-Bucy syndrome
Kluver-Bucy syndrome follows bilateral temporal lobe damage with placidity and hypersexuality.
Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.
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