Object Rotation Effects on the Timing of a Hitting Action |
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| Authors: | Mark A Scott John van der Kamp Geert J P Savelsbergh Raôul RD Oudejans Keith Davids |
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| Institution: | 1. Research Institute for Sport and Exercise Sciences , Liverpool John Moores University , USA;2. Institute for Fundamental and Clinical Human Movement Science , Vrije Universiteit , USA;3. Institute for Fundamental and Clinical Human Movement Science , Vrije Universiteit and the IRM at Manchester Metropolitan University , USA;4. School of Physical Education , University of Otago , USA |
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| Abstract: | Abstract We investigated how perturbing optical information affects the guidance of an unfolding hitting action. Using monocular and binocular vision, six participants were required to hit a rectangular foam object, released from two different heights, under four different approach conditions, two with object rotation (to perturb the viewed surface area) and two without. Participants made more misses under monocular conditions, and the presence of rotation had a significant effect on the duration between the arm's peak velocity and its contact with the object. We conclude that binocular information contributes to the timing of interceptive tasks. In addition, the guidance of interceptive actions does not appear to be based solely on object expansion information picked up from the viewed surface area. |
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| Keywords: | binocular monocular time-to-contact tau |
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