Predictive encoding of motion begins in the primate retina

被引:23
作者
Liu, Belle [1 ,2 ]
Hong, Arthur [1 ,2 ]
Rieke, Fred [1 ,3 ]
Manookin, Michael B. [3 ,4 ]
机构
[1] Univ Washington, Dept Physiol & Biophys, Seattle, WA 98195 USA
[2] Natl Tsing Hua Univ, Inst Syst Neurosci, Hsinchu, Taiwan
[3] Univ Washington, Vis Sci Ctr, Seattle, WA 98195 USA
[4] Univ Washington, Dept Ophthalmol, Seattle, WA 98195 USA
关键词
GANGLION-CELLS; VISUAL-MOTION; BIPOLAR CELLS; INFORMATION; STATISTICS; VARIABILITY; INTEGRATION; FIDELITY; SIGNALS; CODE;
D O I
10.1038/s41593-021-00899-1
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
Predictive motion encoding is an important aspect of visually guided behavior that allows animals to estimate the trajectory of moving objects. Motion prediction is understood primarily in the context of translational motion, but the environment contains other types of behaviorally salient motion correlation such as those produced by approaching or receding objects. However, the neural mechanisms that detect and predictively encode these correlations remain unclear. We report here that four of the parallel output pathways in the primate retina encode predictive motion information, and this encoding occurs for several classes of spatiotemporal correlation that are found in natural vision. Such predictive coding can be explained by known nonlinear circuit mechanisms that produce a nearly optimal encoding, with transmitted information approaching the theoretical limit imposed by the stimulus itself. Thus, these neural circuit mechanisms efficiently separate predictive information from nonpredictive information during the encoding process. The authors utilize information theory to show that four of the output pathways in the primate retina encode predictive information about visual motion. They further show the nonlinear circuit mechanisms that contribute to this computation.
引用
收藏
页码:1280 / 1291
页数:12
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