Perception of the touch-induced visual double-flash illusion correlates with changes of rhythmic neuronal activity in human visual and somatosensory areas

► Presentation of one visual stimulus accompanied by two tactile stimuli. ► Frequent illusionary perception of a second visual stimulus (double-flash illusion). ► Changes of oscillatory activity in different frequency bands predict illusion. ► Spontaneous fluctuations of attention might influence perception of illusion. ► Effective visuo-tactile transmission of oscillatory activity might underlie illusion.