Figure 4.
Fluctuations in gamma-band power do not account for perceptual modulation. A, Trial-to-trial correlation between transient beta-band (15–25 Hz) and gamma-band (60–120 Hz) power in transient time window (0.25–0.75 s after stimulus change) across subjects, for disappearance trials, reappearance trials, or both conditions combined (“All trials”). Group average; dots depict individual subjects (*p < 0.05, two-sided permutation test across subjects, 10,000 permutations). B, Average beta-band modulation before (gray bars) and after (blue bars) removing trial-to-trial fluctuations of gamma-band power (***p < 0.001, two-sided permutation test across subjects, 10,000 permutations).