Lesions of the amygdala do not affect the enhancement of the acoustic startle response by background noise.

@article{Schanbacher1996LesionsOT,
  title={Lesions of the amygdala do not affect the enhancement of the acoustic startle response by background noise.},
  author={A Schanbacher and Michael Koch and Peter K. D. Pilz and Hans Ulrich Schnitzler},
  journal={Physiology & behavior},
  year={1996},
  volume={60 5},
  pages={1341-6}
}
The acoustic startle response (ASR) is enhanced in the presence of loud background noise. We examined whether or not this increase of response strength is mediated by the amygdala, which is known to be involved in various phenomena of enhancement of the ASR. To achieve this aim, we tested whether or not amygdaloid lesions with the excitotoxin N-methyl-D-aspartate (NMDA) would abolish the enhancement of the ASR by background noise in 13 Wistar rats. Loss of foot-shock sensitization in these rats… CONTINUE READING