University of Illinois researchers gave 150 children a pattern game . It was designed to test cognitive flexibility , which is our ability to shift attention and select information to fit the changing demands of a task . The kids were given two sets of cards : one with pictures that they had to match up in order to get points ( like " A ) or B ; Found those who ate fatty food had slower reaction times and worse working memories than children who ate healthier diets .
University of Illinois researchers gave 150 children a pattern game . It was designed to test cognitive flexibility , which is our ability to shift attention and select information to fit the changing demands of a task . They compared the results with the children 's food diaries . Found those who ate fatty food had slower reaction times and worse working memories than children who ate healthier diets .