Effect of Electroconvulsive Shock (ECS) on Extinction of an Approach Response
Aversive effects of ECS were studied by comparing the effect of ECS on the extinction of a well developed approach response under two conditions. Rats pretrained to run a straight alley were given ECS immediately after (5 sec.), or 1 hr. after entering the goal box. No significant differences occurred until the fifth trial when the Immediate ECS group showed significantly longer approach latencies.