Perceptual reversals during binocular rivalry: ERP components and their concomitant source differences
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Published on: September 6, 2017
Juliane Britz1, Michael A Pitts1
1Department of Fundamental Neuroscience and Geneva Neuroscience Center, University of Geneva, Geneva, SwitzerlandDepartment of Neurosciences, University of California, San Diego, San Diego, California, USA.
Abstract:
We used an intermittent stimulus presentation to investigate event-related potential (ERP) components associated with perceptual reversals during binocular rivalry. The combination of spatiotemporal ERP analysis with source imaging and statistical parametric mapping of the concomitant source differences yielded differences in three time windows: reversals showed increased activity in early visual (∼120 ms) and in inferior frontal and anterior temporal areas (∼400-600 ms) and decreased activity in the ventral stream (∼250-350 ms). The combination of source imaging and statistical parametric mapping suggests that these differences were due to differences in generator strength and not generator configuration, unlike the initiation of reversals in right inferior parietal areas. These results are discussed within the context of the extensive network of brain areas that has been implicated in the initiation, implementation, and appraisal of bistable perceptual reversals.
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