Sport professionals that play well will often say ‘the ball seemed larger than usual’. It sounds like nonsense, but psychologists of the university of Virginia discovered that indeed sportsmen perceive a ball to be bigger on a good day and smaller on a bad one. Researchers studied play results of softball players and made them estimate how large the ball was after the game. Players with a good score pointed to significantly bigger circles than players that did not hit the ball so well that day. Psychologists will continue research to see if visualisation techniques can improve the players performance.Question: Does a slide with larger fonts score better than a slide with a smaller font?December 2005 Psychological Science