Figure 3.

Intended combined lesions of the inferior prefrontal convexity and orbital frontal cortex (shown in dark gray, center column) and reconstruction of the actual damage (in light gray) for the 4 cases in Group ICO onto standard coronal sections of a normal monkey brain. The numerals on the left of the coronal sections indicate the distance in millimeters from the interaural plane. ai, inferior arcuate sulcus; as, superior arcuate sulcus; ci, cingulate sulcus; la, lateral fissure; orl, lateral orbital sulcus; orm, medial orbital sulcus; p, principal sulcus; ro, rostral sulcus. Asterisk indicates 2 subjects in Group ICO* with damage similar to the intended lesions. Cases ICO-3 and 4 had unintended damage to area 46 as indicated by the arrows.