Amygdaloid complex lesions differentially affect retention of tasks using appetitive and aversive reinforcement.

@article{Cahill1990AmygdaloidCL,
  title={Amygdaloid complex lesions differentially affect retention of tasks using appetitive and aversive reinforcement.},
  author={Larry Cahill and James McGaugh},
  journal={Behavioral neuroscience},
  year={1990},
  volume={104 4},
  pages={532-43}
}
The hypothesis that the amygdaloid complex (AC) is involved in the formation of stimulus-reward associations was examined. A series of experiments (1A-1C) directly compared the effects of lesions (produced by injection of the excitotoxin N-methyl-D-aspartic acid) on 1-trial appetitive and 1-trial aversive learning in rats. Experiments 1A and 1B, which used different degrees of reinforcement, revealed no effect of lesions on the appetitive task, whereas acquisition of the aversive task was… CONTINUE READING