Journal
BEHAVIOURAL BRAIN RESEARCH
Volume 193, Issue 1, Pages 152-155Publisher
ELSEVIER
DOI: 10.1016/j.bbr.2008.05.003
Keywords
noise; threshold; subliminal; supraliminal; visual perception; 2AFC; humans
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The present study aimed to demonstrate stochastic resonance (SR) for a visual signal above the threshold by using a two-alternative forced-choice protocol. The percent correct response enhanced at non-zero intensity of noise, while decreased with more intense noise. SR for the suprathreshold signals was found for signals with relatively low intensity above the threshold, and disappeared for more intense signals. These findings show the suprathreshold SR in the visual perception. (C) 2008 Elsevier B.V. All rights reserved.
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