Color perception is impaired in baseball batters while performing an interceptive action

Area of Science:

• Neuroscience
• Sports Science
• Visual Perception

Background:

• The dorsal and ventral visual streams are crucial for processing spatial and object information, respectively.
• Expertise in fast-ball sports may involve differential reliance on these visual streams during complex motor tasks.
• Understanding this reliance can inform training and performance optimization.

Purpose of the Study:

• To investigate whether expert baseball players, compared to non-players, exhibit altered visual processing during interceptive actions.
• To test the hypothesis that experts rely more on the dorsal visual stream (action-oriented) than the ventral stream (object-oriented) during target interception.

Main Methods:

• A coincident-timing task involving a moving visual target was employed.
• Participants (baseball players and non-players) performed actions (bat swing or button press) upon target arrival.
• Target color changes were introduced at varying times, and participants reported the final color, assessing visual perception during action.

Main Results:

• Baseball players demonstrated significantly poorer color identification during the bat-swing condition compared to the button-press condition.
• This deficit in color perception for experts was independent of the timing of color change.
• Non-baseball players did not show a similar deficit, indicating expertise-specific visual processing.

Conclusions:

• The findings support the theory that expert athletes, like baseball players, increasingly utilize the dorsal visual stream for interceptive actions.
• This shift in visual processing may come at the cost of ventral stream functions, such as detailed color perception.
• The study highlights the neural adaptations underlying expert motor performance in dynamic environments.