The effect of removal of the post-central convolution of the Macacus rhesus monkey upon the delayed response.

Abstract

Three young monkeys were tested in a delayed-response problem involving a selective response to two food boxes after an enforced postponement. The ability to choose correctly after delays from 0 to 60 seconds was not decreased after removal of the post central convolution on one or both sides. Several lines of evidence are presented which indicate that the successful delayed response was not based upon gross or partial body attitudes on the part of the animals.