Conditions influencing the recovery of visual discriminative habits in monkeys following temporal neocortical ablations.

Abstract

After training on 3 visual discrimination problems 5 monkeys were subjected to bilateral temporal cortical lesions. Post-operative retests showed complete loss of the habits. 2 animals were then given training on new visual discrimination problems, one was kept in normal cage surroundings without training, and 2 were kept in practically complete darkness. After a 3-month period all animals were retrained on the 3 original problems. The "training group" showed high memory for the original problems without retraining, the "cage" monkey showed immediate recovery of one original problem, as did the "dark" monkeys after some retraining (PsycINFO Database Record (c) 2006 APA, all rights reserved)