Light adaptation in cone vision involves switching between receptor and post-receptor sites

@article{Dunn2007LightAI,
  title={Light adaptation in cone vision involves switching between receptor and post-receptor sites},
  author={Felice A Dunn and M. J. M. Lankheet and Fred Rieke},
  journal={Nature},
  year={2007},
  volume={449},
  pages={603-606}
}
We see over an enormous range of mean light levels, greater than the range of output signals retinal neurons can produce. Even highlights and shadows within a single visual scene can differ ∼10,000-fold in intensity—exceeding the range of distinct neural signals by a factor of ∼100. The effectiveness of daylight vision under these conditions relies on at least two retinal mechanisms that adjust sensitivity in the ∼200 ms intervals between saccades. One mechanism is in the cone photoreceptors… CONTINUE READING
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