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Frontal-occipital phase synchronization predicts occipital alpha power in perceptual decision-making
Jinwen Wei1,2, Ziqing Yao3, Gan Huang1,2
1School of Biomedical Engineering, Health Science Center, Shenzhen University, Shenzhen, China.
Abstract:
Numerous studies of perceptual decision-making have shown that lower prestimulus alpha power leads to a higher hit rate in visual detection, which is believed to correlate with the top-down control. However, whether frontal-occipital phase synchronization underlying the top-down control could impact the occipital alpha power that directly affects the perceptual performance remains unclear. In this study, we used analyses of the general linear mixed model (GLMM) and event-related potentials (ERPs) to show that the prestimulus alpha power over the occipital area directly affected visual perception. Using both the univariate and multivariate methods, we found that low-frequency (4-30 Hz) frontal-occipital phase synchronization predicted the prestimulus alpha power over the occipital area. Overall, our results suggested that frontal-occipital phase synchronization could predict occipital alpha power that directly affects perceptual decision-making.
Supplementary Information:
The online version contains supplementary material available at 10.1007/s11571-022-09862-7.
