Spared retention of inhibitory avoidance learning after posttraining amygdala lesions.

摘要: Previous findings indicate that the memory-impairing effects of posttraining amygdala lesions are attenuated by increasing number training trials given prior to induction lesion. The aim this experiment was determine whether degree impairment is also influenced footshock intensity used during training. Rats were 1 trial inhibitory avoidance (IA) with either no or a at 3 intensities. Sham neurotoxic induced week later. On retention test performed 4 days after surgery, performance all amygdala-lesioned rats training, including those lowest footshock, better than footshock. These preserved IA learning in do not support general hypothesis locus permanent changes underlying aversively motivated learning.