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Spinal cord circuits for motor pattern selection in the turtle.

P S Stein1

  • 1Department of Biology, Washington University, St. Louis, Missouri 63130.

Annals of the New York Academy of Sciences
|January 1, 1989
PubMed
Summary
This summary is machine-generated.

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Turtle spinal cords possess neural circuits for generating flexion and scratch reflexes. Further research into spinal cord mechanisms is needed to understand motor pattern selection and generation.

Area of Science:

  • Neuroscience
  • Motor Control
  • Spinal Cord Research

Background:

  • The turtle spinal cord exhibits complex neural circuitry.
  • This circuitry underlies motor pattern generation for reflexes like scratching and flexion.

Purpose of the Study:

  • To investigate the neural mechanisms of motor pattern selection and generation in the turtle spinal cord.
  • To identify neuronal mechanisms at the spinal level for reflex control.

Main Methods:

  • Analysis of neural circuitry in the turtle spinal cord.
  • Investigation of neuronal mechanisms underlying motor pattern selection.
  • Study of reflex generation (flexion and scratch reflexes).

Main Results:

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  • The turtle spinal cord contains neural circuitry for generating flexion and three forms of scratch reflexes.
  • This circuitry selects appropriate motor patterns based on cutaneous stimuli.
  • Partial understanding of neuronal mechanisms for motor pattern selection and generation exists.

    • Conclusions:

    • The turtle spinal cord is capable of generating complex motor patterns for reflexes.
    • Further research on spinal cord neuronal mechanisms is required.
    • Understanding spinal mechanisms can inform hypotheses about supraspinal control of motor patterns.