A complex seasonal rhythm controlled by photoperiod

@article{Randall2004ACS,
  title={A complex seasonal rhythm controlled by photoperiod},
  author={Walter Randall},
  journal={Journal of comparative physiology},
  year={2004},
  volume={142},
  pages={227-235}
}
1. A rhythm with three peaks and troughs during the year exists for the size of the receptive field for grooming reflexes in cats with pontile lesions (Fig. 5). To determine the role of photoperiod in regulating this rhythm, cats with pontile lesions were studied in two different experiments involving photoperiod manipulations. 2. In the first experiment two groups of cats with pontile lesions were exposed to continuously-varying LD cycles, with one group exposed to a schedule of LD cycles with… CONTINUE READING