Abstract: A device and method for stimulation of visual perception by a subject having his eyes closed, by illuminating the closed eyelids with light pulses, particularly in association with music or other sounds provided to his or her ears. Different light pulse sequences can be applied to the subject's two eyes, for instance simultaneously with the two channels of stereo sound supplied to the subject's ears. The device is provided so that the sound signal modulates the visual signal, such as the widths and separations of the light pulses in the light pulse sequences illuminating the subject's eyes, in a manner to which the subject's senses are particularly responsive. With such stimulation of the senses, the subject can perceive or observe, with closed eyes, a large variety of patterns and colors in his visual field. The patterns and colors occur and change on a variety of time and space scales, in some correspondence with the sound, but with some non-reproducible or chaotic characteristics as well.