Daily rhythmicity of the rat acoustic startle response.

@article{Chabot1992DailyRO,
  title={Daily rhythmicity of the rat acoustic startle response.},
  author={Christopher C. Chabot and Douglas H. Taylor},
  journal={Physiology & behavior},
  year={1992},
  volume={51 4},
  pages={885-9}
}
We have measured the acoustic startle response (ASR) amplitude and latency in rats housed in a 12:12 light:dark (LD) cycle. The response amplitudes to eliciting stimuli (ES) of 110 dB or 120 dB (white noise) were significantly higher (nearly two-fold) during D than during L. Similar, but nonsignificant, trends were also observed at ES intensities of 90 dB or 100 dB. While some significant LD ASR latency differences were observed, we cannot ascribe them to the photoperiodic phase at this time… CONTINUE READING

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