Fig. 7
From: Fluctuations in instantaneous frequency predict alpha amplitude during visual perception
Frequency, amplitude and PaA in Experiment 2. a Average instantaneous frequency, amplitude, and PaA in the same contralateral and ipsilateral electrodes examined previously, shaded areas indicate ± 1 SEM within subjects. All data are locked to the onset of the cue (indicated by dark shading). Alpha amplitude shows event-related decreases corresponding to the onset of the cue, stimulus array 1 and stimulus array 2. Similarly, the rightmost panel shows that average shifts in PaA mirror these changes in amplitude. b Histogram of single trial correlations collapsed across subjects, timepoints, and electrodes. Traces to the right indicate timecourses of these correlations. Timecourses show these correlations are relatively stable over time, where the y-axes of the plots run from 0.4 to 0.5, corresponding to the gray shaded area in the histogram
