Stimulating nerve cells stretches time between thinking, doing

Study provides clues to internal decision making

BRAIN BUZZ  Using transcranial direct current stimulation, or tDCS, to zap two brain areas prompted people to report that their intent to click a mouse arose earlier than those of people who didn’t receive tDCS (top bar) or who had the supplementary motor area stimulated. 

Source: Z. Douglas et al/Journal of Neuroscience 2015; adapted by E. Otwell

A zap to the head can stretch the time between intention and action, a new study finds.