Possible role of tremor in the organisation of the nervous system

  • R. R. Lliná;s

Abstract

The essential feature of tremor is that of an activity which is sustained and regular (pathological tremors do not vary in frequency as observed over periods of several years!). Thus the mechanism responsible has the properties, essential to the workings of any organism, of a generator of motive force and of a clocking function in the sense of prediction (Pellionisz and Llinàs, 1982). It is these characteristics that provoke the speculation that the existence of oscillatory rhythms, as coherent properties of CNS neurones, is of theoretical significance beyond their relationship to servo-loops (Marsden, this volume, chapter 4) or as the basis for a central motor generator in swimming and locomotion in vertebrates (Jung, 1941; Gresty and Findley, this volume, chapter 2).

Keywords

Stein 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Bekoff, A., Stein, P. S. G. and Hamburger, V. (1975). Co-ordinated motor output in the hindlimb of the 7-day chick embryo. Proc. Natl. Acad. Sci. USA, 72, 1245–8.PubMedCentralCrossRefPubMedGoogle Scholar
  2. Changeux, J. P. and Danchin, A. (1976). Selective stabilization of developing synapses as a mechanism for the specification of neuronal networks. Nature (Lond.), 264, 705–12.CrossRefGoogle Scholar
  3. Hamburger, V. and Balaban, M. (1963). Observations and experiments on spontaneous rhythmical behaviour in the chick embryo. Dev. Biol., 7, 533–45.CrossRefGoogle Scholar
  4. Hopfield, J. J. (1982). Neural networks and physical systems with emergent collective computational abilities. Proc. Natl. Acad. Sci. USA, 79, 2554–8.PubMedCentralCrossRefPubMedGoogle Scholar
  5. Jung, R. (1941). Physiologische Untersuchungen uber den Parkinsontremor und andere Zitterformen beim Menschen. Z. Neurol. Psychiatr., 173, 263–330.CrossRefGoogle Scholar
  6. Kugler, P. N., Scott Kelso, J. A. and Turvey, M. T. (1980). On the concept of co-ordinative structures as dissipative structures: I. Theoretical lines of convergence. In Stelmach, G. E. and Requin, J. (eds), Tutorials in Motor Behaviour, North-Holland, Amsterdam, pp. 3–47.CrossRefGoogle Scholar
  7. Pellionisz, A. and Llinás, R. (1979). Brain modeling by tensor network theory and computer simulation. The cerebellum: Distributed processor for predictive coordination. Neurosci., 4, 323–48.CrossRefGoogle Scholar
  8. Pellionisz, A. and Llinás, R. (1980). Tensorial approach to the geometry of brain function. Cerebellar coordination via metric tensor. Neurosci., 5, 1125–36.CrossRefGoogle Scholar
  9. Pellionisz, A. and Llinás, R. (1982). Space-time representation in the brain. The cerebellum as a predictive space-time metric tensor. Neurosci., 7, 2949–70.CrossRefGoogle Scholar

Copyright information

© R. R. Llinás 1984

Authors and Affiliations

  • R. R. Lliná;s

There are no affiliations available

Personalised recommendations