Modification of circadian sleep rhythms by gonadal steroids and the neural mechanisms involved.

@article{Yamaoka1980ModificationOC,
  title={Modification of circadian sleep rhythms by gonadal steroids and the neural mechanisms involved.},
  author={Sadao Yamaoka},
  journal={Brain research},
  year={1980},
  volume={185 2},
  pages={385-98}
}
The effects of gonadectomy and gonadal hormone treatment of castrated rats or ovariectomized (OVX) rats bearing brain lesions on the circadian rhythms of slow wave sleep (SWS) and paradoxical sleep (PS) have been studied under a 14/10 light-dark schedule. Cortical EEGs and dorsal neck EMG were used to monitor SWS, PS and alertness. Intact female rats showed two daytime SWS peaks, one daytime PS peak and a small night PS peak except during proestrus. In intact male rats, the morning SWS peak and… CONTINUE READING
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