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Continuous flash suppression reduces negative afterimages

Tsuchiya, Naotsugu and Koch, Christof (2005) Continuous flash suppression reduces negative afterimages. Nature Neuroscience, 8 (8). pp. 1096-1101. ISSN 1097-6256. doi:10.1038/nn1500.

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Illusions that produce perceptual suppression despite constant retinal input are used to manipulate visual consciousness. Here we report on a powerful variant of existing techniques, continuous flash suppression. Distinct images flashed successively at approx10 Hz into one eye reliably suppress an image presented to the other eye. The duration of perceptual suppression is at least ten times greater than that produced by binocular rivalry. Using this tool we show that the strength of the negative afterimage of an adaptor was reduced by half when it was perceptually suppressed by input from the other eye. The more completely the adaptor was suppressed, the more strongly the afterimage intensity was reduced. Paradoxically, trial-to-trial visibility of the adaptor did not correlate with the degree of reduction. Our results imply that formation of afterimages involves neuronal structures that access input from both eyes but that do not correspond directly to the neuronal correlates of perceptual awareness.

Item Type:Article
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URLURL TypeDescription material
Koch, Christof0000-0001-6482-8067
Additional Information:Received 5 April; accepted 16 June 2005; published online 3 July 2005. c2005 Nature Publishing Group.
Group:Koch Laboratory (KLAB)
Funding AgencyGrant Number
National Institute of Mental Health (NIMH)UNSPECIFIED
W. M. Keck FoundationUNSPECIFIED
Gordon and Betty Moore FoundationUNSPECIFIED
Issue or Number:8
Record Number:CaltechAUTHORS:20130816-103301873
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:40609
Deposited By: KLAB Import
Deposited On:16 Jan 2008 02:55
Last Modified:09 Nov 2021 23:49

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