Figure 4.

Group-level spectral analyses comparing baseline, gamma burst, and beta/gamma stable. (A). Power spectra of baseline (black) versus gamma burst (blue). Bootstrapped median spectra are presented and the shaded regions represent the 95% confidence interval for the uncertainty around each median spectrum. (B) The upper (red) and lower (blue) represent the bootstrapped 95% confidence interval bounds for the difference between spectra shown in panel A. EEG power was significantly larger than baseline at 0.1-8.3 Hz and 26.9-50 Hz, and smaller than baseline at 10.3-24.4 Hz. (C). Power spectra of baseline (black) versus beta/gamma stable (red). Bootstrapped median spectra are presented and the shaded regions represent the 95% confidence interval for the uncertainty around each median spectrum. (D) The upper (red) and lower (blue) represent the bootstrapped 95% confidence interval bounds for the difference between spectra shown in panel C. EEG power was significantly larger than baseline at 0.1-7.8 Hz and 31.25-40 Hz, and smaller than baseline at 9.2-26.9 Hz and 44.9-48.3 Hz. (E). Power spectra of gamma burst versus beta/gamma stable. Bootstrapped median spectra are presented and the shaded regions represent the 95% confidence interval for the uncertainty around each median spectrum. (F) The upper (red) and lower (blue) represent the bootstrapped 95% confidence interval bounds for the difference between spectra shown in panel E. EEG power was significantly larger than beta/gamma stable at 0.1-3.4 Hz, and 16.1-50 Hz.

Horizontal solid green lines represents frequency ranges at which significant difference existed. dB = decibel; Hz = hertz.