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R. P. O’Shea, P. M. Corballis; Binocular rivalry in split-brain observers. Journal of Vision 2003;3(10):3. doi: https://doi.org/10.1167/3.10.3.
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During binocular rivalry, visual perception switches between a stimulus viewed by one eye and a different stimulus viewed by the other. We studied rivalry in split-brain observers to test two explanations. Rivalry could reflect switching of activity between the cerebral hemispheres, or switching by a structure in the right frontoparietal cortex. From these two theories, we predict no rivalry when stimuli are presented to a split-brain observer’s left hemisphere. Yet we found similar rivalry from the left and right hemispheres of the split-brain observers, consistent with switchings being mediated by low-level processes within each hemisphere.
Split-brain observer’s two sessions are shown in boldface.
Note: *p < .05; ** p < .01.
Split-brain observer is shown in boldface.
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