Visual illusions can facilitate sport skill learning
Witt, Linkenauger, and Proffitt (Psychological Science, 23, 397–399, 2012) demonstrated that golf putting performance was enhanced when the hole was surrounded by small circles, making it look larger, relative to when it was surrounded by large circles, making it look smaller. In the present study, we examined whether practicing putting with small or large surrounding circles would have not only immediate effects on performance, but also longer-lasting effects on motor learning. Two groups of nongolfers practiced putting golf balls to a 10.4-cm circle (“hole”) from a distance of 2 m. Small or large circles were projected around the hole during the practice phase. Perception of hole size was affected by the size of the surrounding circles. Also, self-efficacy was higher in the group with the perceived larger hole. One day after practice, participants performed the putting task, but without visual illusions (i.e., a retention test). Putting accuracy in retention was greater for the group that had practiced with the perceived larger hole. These findings suggest that the apparently larger target led to the more effective learning outcome.
KeywordsGolf putting Visual perception Ebbinghaus illusion Learning Self-efficacy
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