Contribution of classic photoreceptors to entrainment

@article{Mrosovsky2002ContributionOC,
  title={Contribution of classic photoreceptors to entrainment},
  author={Nicholas Mrosovsky},
  journal={Journal of Comparative Physiology A},
  year={2002},
  volume={189},
  pages={69-73}
}
The ability to phase shift and entrain in response to light is spared in retinally degenerate mice (rd/rd). In the present work, fewer retinally degenerate C57BL/6 mice than wildtypes entrained in dim lights, suggesting that rods and/or cones contribute toward entrainment even though they are not necessary. Thresholds for entrainment appear to be a more sensitive test of deficits in entrainment than phase shifts in response to light pulses.