Skip to main content
. 2021 Aug 5;15:673369. doi: 10.3389/fnins.2021.673369

FIGURE 2.

FIGURE 2

The experimental procedure for Experiment 1. Participants opened their eyes after hearing a beep sound. Various light flicker stimuli were presented to participants in a randomized order with a time duration of 2500 ms for each. After stimulation, participants could close their eyes and rest until the next trial. Light flicker stimulation was presented to both eyes (binocular).