Amygdalectomy and responsiveness to novelty in rhesus monkeys (Macaca mulatta): generality and individual consistency of effects.

@article{Mason2006AmygdalectomyAR,
  title={Amygdalectomy and responsiveness to novelty in rhesus monkeys (Macaca mulatta): generality and individual consistency of effects.},
  author={W. Anthony Mason and John P Capitanio and Christopher J. Machado and Sally P. Mendoza and David G. Amaral},
  journal={Emotion},
  year={2006},
  volume={6 1},
  pages={73-81}
}
Rhesus monkeys (Macaca mulatta) with bilateral ibotenic acid-produced lesions of the amygdala were compared with controls in several novel situations, including exposures to metal objects, toy animals, and a person. Early in testing, the monkeys with lesions showed reduced inhibitions on responsiveness compared with controls. With continuing exposures, differences between groups diminished sharply as inhibitions waned in the controls. This outcome is consistent with the hypothesis that the… CONTINUE READING