Acted Action while thinking?
May 5, 2006 7:09 AM Subscribe
Any thoughts on why we (humans) roll our eyes back while thinking. We also sometimes crunch our brows. I notice people, including myself, do this when no one is looking at them as well as a signifier during conversation. But it is the action acted out alone that interests me? Could this action actually improve the brains ability to think? What, if any, evolutionary advantage could this offer?