Alpha oscillations mediate inhibitory control and perceptual transitions during binocular rivalry.

ABSTRACT: Binocular rivalry is a visual phenomenon that involves alternating percepts despite stable input, providing a window into perceptual processing and neural dynamics. We examined changes in alpha band activity (8-13 Hz) using magnetoencephalographic imaging (MEG). Our time-frequency analysis demonstrates a decrease in alpha band power before the onset of rivalry alternations, indicating a reduction in inhibitory processing, permitting destabilization of the dominant percept. In contrast, an increase in alpha power was observed prior to participant's report of mixed percepts, suggesting heightened inhibitory processing associated with perceptual ambiguity. Directed connectivity analysis (phase transfer entropy) revealed enhanced feedback connectivity from parietal to early visual areas preced

SUBMITTER: Mokri E 

PROVIDER: S-EPMC12441690 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature