CRITICAL FLICKER FREQUENCY AFTER UNILATERAL TEMPORAL LOBECTOMY IN MAN

Patients with left or right temporal lobectomy were compared with a matched normal group on CFF. Of the patients without field defects, those with left, but not with right, hemisphere removals were impaired (especially in the nasal fields), suggesting that hemispheric specialization may extend even to basic sensory processes. Regardless of the side of the lobectomy, patients with field defects (from optic radiation damage) showed losses not only in the partially anopic quadrant but also in all three intact" quadrants. This result confirms earlier reports and suggests that interdependence among parts of the visual field is based on interaction between as well as within the hemispheres. © 1968."