Histological determination of recording and stimulating sites. Thionin-stained coronal sections arranged from rostral in A to caudal in D.Arrowheads in A–C point the electrolytic lesions (0.5 mA for 5 sec) made at the end of the experiments to mark selected recording sites in the LA.D, Stimulating electrodes in the perirhinal cortex. Scale bar in millimeters. BL, Basolateral nucleus of the amygdala; CE, central nucleus; CL, claustrum; GP, globus pallidus; H, hippocampal formation; IC, internal capsule;LA, lateral nucleus of the amygdala; OT, optic tract; PU, putamen; rh, rhinal sulcus; V, ventricle.