I just solved that 9 dot problem in a minute with paper and pen. Maybe it was the chocolate I ate?
Just knowing that it's a hard problem can make you "think outside the box" (literally in this case). No electrocution needed. Could the results be a reflex of the participants' state of mind, not a direct effect of brain stimulation?
Just knowing that it's a hard problem can make you "think outside the box" (literally in this case). No electrocution needed. Could the results be a reflex of the participants' state of mind, not a direct effect of brain stimulation?