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Control of Eating Behavior Using a Novel Feedback System
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Long-latency reflexes for inter-effector coordination reflect a continuous state feedback controller.

Frederic Crevecoeur1,2, Isaac Kurtzer3

  • 1Institute of Information and Communication Technologies, Electronics and Applied Mathematics, Université Catholique de Louvain , Louvain-la-Neuve , Belgium.

Journal of Neurophysiology
|August 23, 2018
PubMed
Summary
This summary is machine-generated.

The long-latency reflex helps coordinate body movements by integrating sensory information across multiple effectors. Continuous state feedback control best explains this inter-effector coordination.

Keywords:
feedbackheteronymous reflexoptimal feedback control

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Area of Science:

  • Neuroscience
  • Motor Control
  • Systems Biology

Background:

  • Successful task performance relies on compensating for unexpected mechanical disturbances.
  • The long-latency reflex is crucial for rapid sensory integration across effectors (e.g., elbow-shoulder, arm-body).
  • Existing research on inter-effector reflexes lacks a comprehensive model of neural feedback control organization.

Purpose of the Study:

  • To analyze how inter-effector long-latency reflexes reveal basic neural feedback control organization.
  • To evaluate contrasting controller organizations against evidence from long-latency reflexes.
  • To determine the most fitting control model for inter-effector coordination.

Main Methods:

  • Reviewed control theory principles relevant to motor control.
  • Examined evidence from studies on inter-effector long-latency reflexes.
  • Compared three organizational contrasts: independent vs. multiple-input multiple-output (MIMO) controllers, continuous vs. intermittent feedback, and direct MIMO vs. state feedback.

Main Results:

  • Multiple independent controllers and intermittent feedback are less likely models.
  • Direct MIMO control is less plausible than state feedback control.
  • Continuous state feedback control aligns best with observed inter-effector coordination.

Conclusions:

  • The long-latency reflex system is best described by continuous state feedback control.
  • This finding provides constraints for developing models of neural feedback control.
  • Understanding this organization is key to explaining successful motor task performance under disturbance.