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Assessing Corticospinal Excitability During Goal-Directed Reaching Behavior
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The multiple process model of goal-directed reaching revisited.
Digby Elliott1, James Lyons2, Spencer J Hayes3
1Department of Kinesiology, McMaster University, Hamilton, Ontario L8S 4K1, Canada; Research Institute for Sport and Exercise Sciences, Faculty of Science, Liverpool John Moores University, Liverpool, UK.
Neuroscience and Biobehavioral Reviews
|November 30, 2016
Summary
This study refines a model of goal-directed reaching, distinguishing impulse control and limb-target control. The updated model effectively explains speed, accuracy, and energy optimization in movements.
Area of Science:
- Motor control
- Human movement science
- Robotics
Background:
- Goal-directed reaching involves complex motor control processes.
- Previous models distinguished impulse control and limb-target control for online regulation.
Purpose of the Study:
- To review and test specific aspects of a multiple process model of speed-accuracy relations in goal-directed reaching.
- To incorporate recent research and refine the existing model.
Main Methods:
- Review of recent experimental work testing the model's predictions.
- Consideration of additional research not previously incorporated.
Main Results:
- The model effectively explains speed and accuracy in goal-directed reaching.
- The refined model accounts for energy optimization and strategic behavior.
Conclusions:
- A modified and expanded model, including crosstalk between impulse and limb-target control, accurately explains goal-directed reaching.
- The model provides a comprehensive framework for understanding motor control in reaching tasks.
