Provided are: a method for activating brainwaves in the gamma band using visible light; and a visual stimulus-providing apparatus therefor. The present method induces synchronized gamma vibration in at least one region of the human brain through flickering light stimulus (FLS) having a predetermined frequency, wherein the FLS may be provided through at least one visible light source and have at least one photobiomodulation condition among stimulation time, wavelength, frequency, and light intensity.
METHOD FOR ACTIVATING BRAINWAVES IN GAMMA BAND USING VISIBLE LIGHT, AND VISUAL STIMULUS-PROVIDING APPARATUS THEREFOR