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Anticipation from biological motion: the goalkeeper problem
Gabriel J Diaz1, Brett R Fajen, Flip Phillips
1Department of Cognitive Science, Rensselaer Polytechnic Institute, Troy, NY, USA. gdiaz@mail.cps.utexas.edu
Journal of Experimental Psychology. Human Perception and Performance
|February 8, 2012
Summary
Goalkeepers use distributed visual information from a kicker's entire body movement to predict penalty kick direction. Local body segment cues may offer a minor contribution to this anticipation.
Area of Science:
- Human motor control
- Biomechanics
- Sports science
Background:
- Anticipating actions from visual cues is a key human ability.
- Soccer goalkeepers must predict penalty kick direction rapidly.
Purpose of the Study:
- To determine if goalkeepers use local (specific body part) or distributed (multiple body parts) visual information to anticipate penalty kick direction.
- To analyze the reliability of different movement cues for predicting kick outcome.
Main Methods:
- Motion capture technology recorded soccer players' kicking movements.
- A novel analysis method identified local and distributed information sources.
- Participants judged kick direction from animations of kicker movements before foot-to-ball contact.
Main Results:
- Reliable local and distributed visual information sources predicting kick direction were identified.
- Participant judgments primarily relied on distributed information from the kicker's movements.
- A small contribution from local information was also observed.
Conclusions:
- Goalkeepers predominantly utilize distributed visual information across the kicker's body to anticipate penalty kick direction.
- The findings suggest a holistic approach to action anticipation in sports.
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