Retention of a position discrimination after regeneration in planarians

Abstract

When planarians are trained in a right-left discrimination and then sectioned, both the anterior and posterior portions demonstrate retention of the discrimination after regeneration. In subsequent retraining trials these Ss also require fewer trials to reach criterion than the original Ss. Control groups indicate that the retention levels are comparable to those of trained uncut animals and that regeneration by itself does not facilitate learning. © 1966, Psychonomic Press. All rights reserved.