The effect of inferotemporal or foveal prestriate ablation on serial reversal learning in monkeys.

Visual discrimination performance during serial reversal learning was studied in monkeys with inferotemporal or foveal prestriate lesions. Bothgroups"were equally impaired in acquisition of the discrimination when compared with normal monkeys. They also learned the reversal series more slowly than control subjects. The reversal deficit of monken with inferotemporallesions was more severe than their acquisitio'n deficit though over successive reversals they :a::hieved normal performance. Monkeys with foveal prestriate lesions were'less impaired in reversalleaming than in acquisition of the discrimination problem. These results are interpreted in !crms of qualitative differences in tne effects of the two lesions.