Enlargement of perceived target size: intentional or natural?

This study used a soccer context to examine the relations between scores and judgments of goal sizes. In Experiment 1, 18 participants (4 women, 14 men; M age = 21.9 yr., SD = 0.9) kicked balls into 5 goals of different sizes. Participants' estimates of the goal size correlated positively with their scores. In Experiment 2, 17 participants (3 women, 14 men; M age = 22.1 yr., SD = 1.0) kicked the balls either from a standing position or while running. Participants' estimates of the goal sizes were higher when they were running. The enlargement of perceived goal size was seemingly related to scoring, and was scaled by the running action. Experiments reinforced the notion of affordance-based control. Differing views from Oriental philosophy and psychology were discussed.