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Locomotion of Forelimbs in Thalamic Cats: Joint Afferents and Supraspinal Contributions

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Neurobiology of Vertebrate Locomotion

Part of the book series: Wenner-Gren Center International Symposium Series ((WGS))

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Abstract

Controlled stepping can be elaborated by thalamic cats on a moving treadmill, as dictated by belt position and speed. As the belt moves, the limb reaches a critical backward position from which it is lifted to step forward. Stepping continues until the belt stops. These findings suggest a role for limb afferentation in initiating and maintaining the stepping movements. This report addresses forelimb stepping by thalamic cats and the potential role in its expression of joint afferents and a supraspinal structure, the paralemniscal pontine reticular formation.

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References

  • Loeb, G.E., Somatosensory unit input to the spinal cord during normal walking. In J.P. Lund, S. Rossignol and A.M. Smith (eds). Intraction Between Sensory Inputs and Movements. Can. J. Physiol. Pharmacol., 59 (1981) 627–635.

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  • Shimamura, M., Kogure, I. and Fuwa, T., The role of the paralemniscal pontine reticular formation in forelimb stepping of thalamic cats. Neuroscience Res., 1 (1984b) 393–410.

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Authors
  1. Muneo Shimamura
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  2. I. Kogure
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  3. T. Fuwi
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Editor information

Editors and Affiliations

  1. Department of Physiology III, Karolinska Institute, Stockholm, Sweden

    Sten Grillner  & Hans Forssberg  & 

  2. Department of Biology, Washington University, St Louis, USA

    Paul S. G. Stein

  3. Department of Physiology, University of Arizona, Tucson, USA

    Douglas G. Stuart

  4. Department of Rehabilitation Medicine, Catholic Medical Center, Manchester, USA

    Richard M. Herman

Copyright information

© 1986 The Wenner-Gren Center

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Cite this chapter

Shimamura, M., Kogure, I., Fuwi, T. (1986). Locomotion of Forelimbs in Thalamic Cats: Joint Afferents and Supraspinal Contributions. In: Grillner, S., Stein, P.S.G., Stuart, D.G., Forssberg, H., Herman, R.M. (eds) Neurobiology of Vertebrate Locomotion. Wenner-Gren Center International Symposium Series. Palgrave Macmillan, London. https://doi.org/10.1007/978-1-349-09148-5_35

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