Eyes Have a Natural Version of Night Vision


Source: Duke University

Summary: Retinal circuits that were thought to be unchanging and programmed for specific tasks are adaptable to different light conditions, said the scientists who identified how the retina reprograms itself for low light.


 ability to see in low-light conditions

The ganglion cell layer of the retina is labelled with red to show the presence of a cell sensitive to motion in the upward direction. In low light, these cells become generalists to help the retina pick up the faintest signals of any kind of motion. Credit: Xiaoyang Yao, Duke University and Amanda J. McLaughlin at the University of Victoria


More Information: Xiaoyang Yao et al, “Gap Junctions Contribute to Differential Light Adaptation Across Selective Retinal Ganglion Cells,” Neuron (2018). DOI: 10.1016/j.neuron.2018.08.021


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