Visual illusions and the control of ball placement in goal-directed hitting.
When hitting kicking, or throwing balls at targets, online control in the target area is impossible. We assumed this lack of late corrections in the target area would induce an effect of a single-winged Müller-Lyer illusion on ball placement. After extensive practice in hitting balls to different landing locations, participants (N = 9) had to hit a ball to a distant target specified by the vertex of a single-winged Müller-Lyer configuration. Impact velocity was not significantly "tricked" by the pictorial illusion, suggesting that, even when late corrections in the target area are absent, some motor behaviors are not susceptible to the influence of the visual environment surrounding the target.
Center for Human Movement Sciences, University Medical Center Groningen, The Netherlands. s.r.caljouw@med.umcg.nl
Simone R
SR
Caljouw
John
J
Van der Kamp
Geert J R
GJ
Savelsbergh
D000328:Adult; D000704:Analysis of Variance; D001132:Arm / Q000502:physiology*; D003463:Cues; D005260:Female; D006801:Humans; D007088:Illusions; D008297:Male; D011597:Psychomotor Performance / Q000502:physiology*; D013028:Space Perception / Q000502:physiology*; D013177:Sports / Q000502:physiology*