Figure 3
From: Optimal flickering light stimulation for entraining gamma waves in the human brain

Plots of results of the repeated measures ANOVA in the EXP-2. Averaged event-related synchronization of steady-state visually evoked potentials induced by flickering light stimulus (FLS) in the second experiment. T0–T10 indicates 250 ms time windows from 250 ms before the onset of FLS to 500 ms after the offset of FLS. The main effect of the time window on ERS at Pz (A) and Fz (B). The main effects of the luminance intensity of FLS on ERS at Pz (C) and Fz (D). The main effect of flickering frequency of FLS on ERS at Pz (E) and Fz (F). Error bars indicate standard errors. *p < 0.05, **p < 0.01, ***p < 0.001, by repeated measures analysis of variance.