Very interesting findings. I'd be curious which delivery system is more accurate, signaling from the brain as above, or from the body (if electrodes were fastened to it).\n\nThis study seems to follow other published studies where participants similated everyday tasks through "thinking" through the actions in them, or generally "visualization."\n\nI play and research the brain/body's role in percussion, in cognition, sensory processing, and voluntary movement. I find it interesting how it is difficult to "speak" while playing, esp. hand percussion, suggesting percussion involves many of the same processes as language.