In a study conducted with children, researchers found that certain regions of the brain reacted more strongly to being rewarded with food than being rewarded with money. Children were more likely to overeat, even when the child was not initially hungry, and regardless of being overweight or not. Researchers believe that the findings may also give insight on how to help prevent obesity at a younger age. 59 children between the ages of 7 and 11 years old made four visits to the Penn State's Children's Eating Behavior Laboratory. During first three visits, children were given meals designed to measure how they eat in a variety of different situations, such as a typical meal when they are hungry versus snacks when they are not hungry. How much the children ate at each meal was determined by weighing the plates before and after the meals. On their fourth visit, the children had MRI scans as they played several rounds of a game in which they guessed if a computer-generated number would be higher or lower than five. They were told before their final results that if they were right, they would win either money, candy or a book. The researchers found that when various regions of the brain reacted more to anticipating or winning food compared to money, those children were more likely to overeat. One researcher added that this is important because it suggests there may be a way to identify brain responses that can predict the development of obesity in the future.