Modulation of stimulus-induced 20-Hz activity for the tongue and hard palate during tongue movement in humans

•Magnetic 20-Hz event-related synchronization (ERS) was detected in response to tongue and hard palate stimulation at rest, but was inhibited by tongue movement.•ERS was induced by oral stimulation, with or without proprioception, but was inhibited by tongue movement regardless of the stimulation or movement area.•The results suggest that 20-Hz cortical coordination of the oral sensorimotor system is important for oral movements.