The external noise normalized gain profile of spatial vision

	The external noise normalized gain profile of spatial vision
	Hou, Fang 1; Lu, Zhong-Lin 2,3; Huang, Chang-Bing4
摘要	The contrast sensitivity function (CSF), a measure of visual sensitivity to a wide range of spatial frequencies, has been widely used as the gain profile of the front-end filter of the visual system to predict how we perceive spatial patterns. However, the CSF itself is determined by the gain profile and other processing inefficiencies of the visual system; it may be problematic to use the CSF as the gain profile in observer models. Here, we applied the external noise paradigm and the perceptual template model (PTM) to characterize several major properties of the visual system. With the external noise normalized gain profile, nonlinearity, and internal additive and multiplicative noises, the PTM accounted for 92.8% of the variance in the experiment data measured in a wide range of conditions and revealed the major processing components that determine the CSF. Unlike the CSF, the external noise normalized gain profile of the visual system is relatively flat across a wide range of spatial frequencies. The results may have major implications for understanding normal and abnormal spatial vision.
关键词	contrast sensitivity function gain spatial vision spatial frequency channel noise perceptual template model
	2014
语种	英语
发表期刊	JOURNAL OF VISION
ISSN	1534-7362
卷号	14 期号:13 页码:1-14
期刊论文类型	Article
收录类别	SCI
WOS记录号	WOS:000345768300009
引用统计	被引频次：21[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.psych.ac.cn/handle/311026/14149
专题	中国科学院行为科学重点实验室
作者单位	1.Ohio State Univ, Dept Psychol, Columbus, OH 43210 USA 2.Ohio State Univ, Ctr Cognit Brain & Sci, Dept Psychol, Columbus, OH USA 3.Ohio State Univ, Ctr Cognit & Behav Brain Imaging, Columbus, OH USA 4.Chinese Acad Sci, Inst Psychol, Key Lab Behav Sci, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Hou, Fang,Lu, Zhong-Lin,Huang, Chang-Bing. The external noise normalized gain profile of spatial vision[J]. JOURNAL OF VISION,2014,14(13):1-14.
APA	Hou, Fang,Lu, Zhong-Lin,&Huang, Chang-Bing.(2014).The external noise normalized gain profile of spatial vision.JOURNAL OF VISION,14(13),1-14.
MLA	Hou, Fang,et al."The external noise normalized gain profile of spatial vision".JOURNAL OF VISION 14.13(2014):1-14.

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