POSTERIOR NEODECORTICATION IN RAT - AGE AT OPERATION AND EXPERIENCE

Subjected rats to visual-cortex damage either at 1 day of age or in adulthood and assessed their ability to utilize pattern cues. No age effect was obtained. This was true for Ss with all or part of visual cortex removed and for Ss maintained postoperatively in visually rich, poor, or ordinary lab environments. It was demonstrated that Ss with visual-cortex damage tend to use luminous flux cues while normal Ss tend to use pattern cues in performing a brightness discrimination task, and that performance of the brightness discrimination task by Ss subjected to tissue removal can be affected by lesion size. (PsycINFO Database Record (c) 2006 APA, all rights reserved). © 1969 American Psychological Association.