This article from the Columbia University Medical Center describes research showing that postponing the start of the decision-making process by a fraction of the second can improve the accuracy of those decisions. People with impulsive symptoms of ADHD are often told "think before you act", but this research shows that there is evidence supporting this idea and that even a slight pause can make a measurable difference.The following is an excerpt, but you can read the full article here.
“Decision making isn’t always easy, and sometimes we make errors on seemingly trivial tasks, especially if multiple sources of information compete for our attention,” said first author Tobias Teichert, PhD, a postdoctoral research scientist in neuroscience at CUMC at the time of the study and now an assistant professor of psychiatry at the University of Pittsburgh. “We have identified a novel mechanism that is surprisingly effective at improving response accuracy.