Cutaneous vasoconstriction in conscious rabbits during alerting responses detected by hippocampal theta-rhythm.

@article{Yu1997CutaneousVI,
  title={Cutaneous vasoconstriction in conscious rabbits during alerting responses detected by hippocampal theta-rhythm.},
  author={Yong Hai Yu and William Walter Blessing},
  journal={The American journal of physiology},
  year={1997},
  volume={272 1 Pt 2},
  pages={R208-16}
}
We determined whether alerting stimuli cause cutaneous vasoconstriction in conscious rabbits. We compared ear blood flow with renal, mesenteric, and femoral flows at rest and in response to nonnoxious alerting stimuli, which induced theta-rhythm (4-9 Hz) in the simultaneously recorded hippocampal electroencephalogram (EEG). theta-Inducing stimuli (e.g., whistles and fur touches) reduced ear flow by 95 +/- 6%, commencing 1-2 s after the EEG change and lasting 45 s. Renal flow did not… CONTINUE READING