The lesion in group IT × FC (monkeys S1–S3). On the left of the figure the unilateral inferior temporal ablation is shown in vertical hatchingin lateral (top) and basal (bottom) views of the right hemisphere. On the right of the figure the unilateral frontal ablation is shown in horizontal hatching in lateral (top) and basal (bottom) views of the left hemisphere, and in the center the unilateral frontal ablation is shown in a medial view of the left hemisphere. AS, Arcuate sulcus; CIN, cingulate sulcus; IOS, inferior occipital sulcus;LS, lateral sulcus; OTS, occipitotemporal sulcus; PS, principal sulcus; ROS, rostral sulcus; RS, rhinal sulcus; STS, superior temporal sulcus.