![]() In one, 81 college students made 100 decisions involving healthy versus unhealthy food choices. Stillman conducted the study with Melissa Ferguson, professor of psychology, and Danila Medvedev, a former undergraduate student, both from Cornell University. The results may shed light on a scholarly debate about what’s happening in the brain when humans harness willpower. ![]() For those with low self-control, the temptation is actually drawing their hand closer to the less-healthy choice.” “Our hand movements reveal the process of exercising self-control,” said Paul Stillman, co-author of the study and postdoctoral researcher in psychology at The Ohio State University. People who moved the cursor closer to the unhealthy treat (even when they ultimately made the healthy choice) later showed less self-control than did those who made a more direct path to the healthy snack. In one key experiment, participants viewed pictures of a healthy and an unhealthy food choice on opposite sides of the top of a computer screen and moved a cursor from the center bottom to select one of the foods. The work, forthcoming in Psychological Science, a journal of the Association for Psychological Science, represents a new approach to studying self-control. In a new study, researchers watched in real time as people’s hands revealed the struggle they were under to choose the long-term goal over short-term temptation. But what is happening during those few seconds while you make the decision? It takes just a few seconds to choose a cookie over an apple and wreck your diet for the day. Advances in Methods and Practices in Psychological Science.Psychological Science in the Public Interest.Current Directions in Psychological Science.
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