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Organization of voluntary movement
1Center for Neurobiology and Behavior, New York State Psychiatric Institute, College of Physicians and Surgeons, Columbia University, New York 10032.
Current Opinion in Neurobiology
|December 1, 1991
Summary
Recent advances reveal how the motor system organizes complex movements by translating target locations into body-based commands. This includes strategies like parallel response specification and feedforward sensory processing using internal models.
Area of Science:
- Neuroscience
- Motor Control
- Biomechanics
Background:
- Understanding complex, multi-joint movements is crucial for neuroscience and rehabilitation.
- Previous research focused on basic movement control, but complex task organization remained less understood.
Purpose of the Study:
- To summarize recent advances in understanding the neural control of complex movements.
- To explore how the motor system translates sensory information into coordinated motor commands.
Main Methods:
- Review of recent literature on motor system organization and sensory processing.
- Analysis of strategies for trajectory control, including parallel specification and equilibrium trajectories.
- Examination of feedforward sensory input utilization via internal models.
Main Results:
- The motor system encodes target locations in body-based coordinates for movement generation.
- Strategies like parallel specification and equilibrium trajectories simplify movement control.
- Neural systems utilize feedforward sensory information through internal models for planning and task execution.
Conclusions:
- Complex movements are organized through sophisticated motor control strategies and predictive sensory processing.
- Internal models of the environment, body, and task are key to preparing movement parameters and resolving demands.