Visual sensitivity: significant within-species variations in a nonhuman primate.

@article{Jacobs1977VisualSS,
  title={Visual sensitivity: significant within-species variations in a nonhuman primate.},
  author={Gerald H. Jacobs},
  journal={Science},
  year={1977},
  volume={197 4302},
  pages={499-500}
}
Among squirrel monkeys (Saimiri sciureus) there are significant sex-related differences in visual sensitivity. As measured behaviorally in an increment-thershold task, a sample of males was found to be substantially less sensitive to long-wavelength (640-nanometer) light than a group of females tested in the same way, although the two groups showed no significant differences in sensitivity to a middle-wavelength (540-nanometer) light. The two group also differed on a test designed to measure… CONTINUE READING
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