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Oculo-manual tracking of visual targets: control learning, coordination control and coordination model.
G M Gauthier1, J L Vercher, F Mussa Ivaldi
1Université de Provence, Département de Psychophysiologie, Marseille, France.
Experimental Brain Research
|January 1, 1988
Summary
Training significantly improves eye-hand coordination in children and adults. This enhances visual tracking, reducing delay and increasing smooth pursuit velocity through reciprocal motor system information transfer.
Area of Science:
- Neuroscience
- Motor Control
- Developmental Psychology
Background:
- Eye-hand coordination is crucial for sensorimotor tasks.
- The development of this coordination is not fully understood, especially in early stages.
- Existing models do not fully capture the dynamic interplay between visual tracking and motor responses.
Purpose of the Study:
- To investigate the developmental processes of eye-hand coordination in response to visual targets.
- To determine the impact of training on the functional maturation of eye-hand coordination.
- To propose a model for the interaction between motor systems in sensorimotor tasks.
Main Methods:
- Studied eye-hand coordination in young children and adults during visual target tracking.
- Assessed dynamic characteristics of the smooth pursuit system before and after training.
- Observed eye movements when the hand was used as a target or for tracking.
Main Results:
- Training markedly improved smooth pursuit system dynamics in both children and adults.
- Eye-to-target delay decreased from 150 ms to 30 ms with training.
- Smooth pursuit maximum velocity increased by 100% after training.
Conclusions:
- Functional maturation of eye-hand coordination control is achieved through training.
- Coordination signals between arm and eye motor systems are vital for improved tracking.
- A model based on timing and mutual coupling explains coordination control in sensorimotor tasks.