fMRI studies of visual cortical activity during noise stimulation

被引：0

作者：

Simonotto, E ^{[1
]}

Spano, F ^{[1
]}

Riani, M ^{[1
]}

Ferrari, A ^{[1
]}

Levrero, F ^{[1
]}

Pilot, A ^{[1
]}

Renzetti, P ^{[1
]}

Parodi, RC ^{[1
]}

Sardanelli, F ^{[1
]}

Vitali, P ^{[1
]}

Twitty, J ^{[1
]}

Chiou-Tan, F ^{[1
]}

Moss, F ^{[1
]}

机构：

[1] Univ Missouri, Ctr Neurodynam, Dept Phys & Astron, St Louis, MO 63121 USA

来源：

COMPUTATIONA L NEUROSCIENCE: TRENDS IN RESEARCH 1999 | 1999年

关键词：

stochastic resonance; functional magnetic resonance imaging (fMRI); noise; visual cortex;

D O I：

暂无

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

Psychophysics experiments on the human visual system have established that the sensitivity for the detection of fine detail in noise contaminated images can be quantitatively and repeatably measured using stochastic resonance as a tool. Optimal noise results in maximal sensitivity. Does this mean simply that the retina is averaging out the noise, or instead is the visual cortex involved in some level of computation? We report results of functional magnetic resonance imaging experiments which indicate the latter. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：511 / 516

页数：6

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