Multiple mechanisms for contrast adaptation in the retina |
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Authors: | Demb Jonathan B |
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Institution: | Department of Neuroscience, University of Pennsylvania School of Medicine, Philadelphia, PA 19104, USA. |
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Abstract: | The retina adapts to average light intensity but also to the range of light intensities (contrast). A study by Baccus and Meister, in this issue of Neuron, identifies three ways that ganglion cells and interneurons adapt to high contrast: shorten integration time, reduce gain, and depolarize. Only the depolarization decays, over tens of seconds. |
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