Group-level coherence analyses comparing baseline, gamma burst, and beta/gamma stable. (A). Coherence analysis of baseline (black) versus gamma burst (blue). Bootstrapped median coherences are presented and the shaded regions represent the 95% confidence interval for the uncertainty around the median coherence. (B) EEG was significantly more coherent than baseline at 27.9-48.9 Hz).. The upper (red) and lower (blue) represent the bootstrapped 95% confidence interval bounds for the difference between coherence shown in panel A (C). Coherence analysis of baseline (black) versus beta/gamma stable (red). Bootstrapped median coherences are presented and the shaded regions represent the 95% confidence interval for the uncertainty around each median coherence. (D) EEG was significantly more coherent than baseline at 25.4–28.3 and 30.8–45.5 Hz. The upper (red) and lower (blue) represent the bootstrapped 95% confidence interval bounds for the difference between coherence shown in panel C. (E). Coherence analysis of gamma burst (blue) versus beta/gamma stable (red). Bootstrapped median coherences are presented and the shaded regions represent the 95% confidence interval for the uncertainty around teach median coherence. (F) EEG coherence was similar between both groups, even though gamma burst (blue) appeared to exhibit a larger slow-delta coherence. The upper (red) and lower (blue) represent the bootstrapped 95% confidence interval bounds for the difference between coherence shown in panel E.
Horizontal solid green lines represent frequency ranges at which significant difference existed. dB = decibel; Hz = hertz.