Eye movement training is most effective when it involves a task-relevant sensorimotor decision.

Area of Science:

• Neuroscience
• Perceptual-motor learning
• Human movement science

Background:

• Eye and hand movements are intrinsically linked in daily activities.
• Understanding cross-modal transfer in perceptual-motor training is crucial for optimizing rehabilitation and skill acquisition.

Purpose of the Study:

• To investigate the mutually beneficial effects of eye and hand movements through perceptual-motor training.
• To determine if training in one sensory or motor modality enhances performance in the other.

Main Methods:

• Participants predicted and intercepted moving objects, with eye and hand movements recorded.
• Training protocols involved either eye movements alone or combined eye-hand movements, with or without feedback.
• Interception accuracy and precision were measured to assess performance changes.

Main Results:

• Hand movement training significantly improved finger interception accuracy and precision, regardless of feedback.
• Isolated eye movement training did not enhance hand movement performance.
• Eye movements improved when trained with hand movements or with external feedback, indicating a benefit from active sensorimotor engagement.

Conclusions:

• There is limited cross-modal transfer between eye and hand movement training.
• Training involving active sensorimotor tasks, particularly those engaging the hand, is essential for improving both eye and hand movement accuracy and precision.