Synaptic Rectification Controls Nonlinear Spatial Integration of Natural Visual Inputs.
Synaptic Rectification Controls Nonlinear Spatial Integration of Natural Visual Inputs.
复制标题
突触整流控制自然视觉输入的非线性空间整合。
DOI:
10.1016/j.neuron.2016.05.006
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发表时间:
2016
期刊:
影响因子:
16.2
通讯作者:
Rieke,Fred
中科院分区:
文献类型:
--
作者:
Turner,MaxwellH;Rieke,Fred
A central goal in the study of any sensory system is to predict neural responses to complex inputs, especially those encountered during natural stimulation. Nowhere is the transformation from stimulus to response better understood than the vertebrate retina. Nevertheless, descriptions of retinal computation are largely based on stimulation using artificial visual stimuli, and it is unclear how these descriptions map onto the encoding of natural stimuli. We demonstrate that nonlinear spatial integration, a common feature of retinal ganglion cell (RGC) processing, shapes neural responses to natural visual stimuli in primate Off parasol RGCs, whereas On parasol RGCs exhibit surprisingly linear spatial integration. Despite this asymmetry, both cell types show strong nonlinear integration when presented with artificial stimuli. We show that nonlinear integration of natural stimuli is a consequence of rectified excitatory synaptic input and that accounting for nonlinear spatial integration substantially improves models that predict RGC responses to natural images.
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影响因子:
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通讯作者:
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影响因子:
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DOI:
--
发表时间:
1982
期刊:
International Journal of Radiation Oncology, Biology, Physics
影响因子:
--
作者:
Marcelle Guichard;Edmond
通讯作者:
Edmond