Effects of electroshock convulsions upon the learning performance of monkeys: I. Object-quality discrimination learning.

Abstract

"After eight rhesus monkeys had been trained on 515 object-quality discrimination problems and formed a highly efficient learning set, four of the animals were given a series of 20 electroshock convulsions. Following shock, these animals and the four controls were tested on a series of 96 additional problems. The convulsed animals were significantly inferior to the controls in terms of total errors. The impairment was temporary in duration and was most marked on differential-cue trials." (PsycINFO Database Record (c) 2006 APA, all rights reserved)