A population-coding model of attention's influence on contrast response: Estimating neural effects from psychophysical data.
A population-coding model of attention's influence on contrast response: Estimating neural effects from psychophysical data.
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DOI:
10.1016/j.visres.2008.09.018
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发表时间:
2009-06
期刊:
影响因子:
1.8
通讯作者:
Carrasco M
中科院分区:
文献类型:
--
作者:
Pestilli F;Ling S;Carrasco M
Human psychophysics and monkey physiology studies have shown that attention modulates early vision – contrast sensitivity and processing. But how can we bridge the effects of attention on perceptual performance to their neural underpinnings? Here we implement a population-coding model that estimates attentional effects on population contrast response given psychophysical data. Model results show that whereas endogenous (sustained, voluntary) attention changes population contrast-response via contrast gain, exogenous (transient, involuntary) attention changes population contrast-response via response gain.
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