Competing Theories of Binocular Rivalry: A Possible Resolution |
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Authors: | Frank Tong |
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Affiliation: | (1) Department of Psychology, Green Hall, Princeton University, Princeton, NJ, 08544 |
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Abstract: | The neural basis of binocular rivalry has beenthe subject of vigorous debate. Do discrepantmonocular patterns rival for awareness becauseof neural competition among patternrepresentations or monocular channels? In thisarticle, I briefly review psychophysical andneurophysiological evidence pertaining to boththeories and discuss important new neuroimagingdata which reveal that rivalry is fullyresolved in monocular visual cortex. These newfindings strongly suggest that interocularcompetition mediates binocular rivalry and thatV1 plays an important role in the selection ofconscious visual information. They furthersuggest that rivalry is not a unitaryphenomenon. Interocular competition may fullyaccount for binocular rivalry whereas aseparate mechanism involving patterncompetition likely accounts for monocular andstimulus rivalry. |
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Keywords: | binocular rivalry human magnetic resonance imaging visual perception visual cortex |
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