Stimulating nerve cells stretches time between thinking, doing
Study provides clues to internal decision making
![](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2015/05/ls_brain_intention_free.png?fit=860%2C460&ssl=1)
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