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Basketball jump shooting is controlled online by vision
R Ferraz de Oliveira1, R Huys, R R D Oudejans
1Research Institute MOVE, Faculty of Human Movement Sciences, VU University, Amsterdam, The Netherlands. r.oliveira@fbw.vu.nl
Experimental Psychology
|August 30, 2007
Summary
Basketball jump shooting accuracy depends on real-time visual feedback, not just preprogramming. Delays in vision significantly reduced shot accuracy, highlighting the importance of online visual control for expert players.
Area of Science:
- Sports Science
- Motor Control
- Neuroscience
Background:
- Basketball jump shooting is a complex motor skill.
- The role of online visual feedback versus motor preprogramming in jump shooting is debated.
Purpose of the Study:
- To investigate whether basketball jump shooting relies more on online visual control (dorsal stream-mediated) or motor preprogramming.
- To determine the impact of delayed visual information on jump shot accuracy and execution.
Main Methods:
- Seventeen expert basketball players performed jump shots under normal vision and with delayed visual feedback (0, 1, or 2 seconds).
- Outcome (shot accuracy) and execution (inter-joint coordination) measures were analyzed.
Main Results:
- End-point accuracy was significantly reduced under delayed visual conditions, with a tendency to undershoot the basket.
- Inter-joint coordination strength and stability decreased as a function of visual delay.
- While some accuracy was maintained without vision, continuous visual guidance proved crucial.
Conclusions:
- Visual sensory information plays a critical role in the continuous guidance of basketball jump shots.
- The findings suggest that online visual control is essential, rather than solely relying on motor preprogramming.
- Expert jump shooting is adaptable and relies on real-time visual input for optimal performance.
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