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Altered Kinematic Patterns and Synapses in Recovery of Motor Behavior After Hindlimb Deafferentation in Cats

  • M. E. Goldberger

Abstract

Recovery of motor behavior following damage to the adult mammalian CNS could occur in a number of different ways. One possibility is that the initially lost or impaired physiological mechanisms underlying normal motor behavior are restored due to plasticity of the remaining systems. For example, when a pathway or system is only partially damaged, the spared parts of the pathway may increase the control they exert. One way in which this might occur is if cells post-synaptic to the partially spared pathway increase their responsiveness to the reduced input by changes in regulation of their receptors or if the reduced input increases by sprouting. The prediction that follows from that model is that the behavior that is lost immediately following the lesion and the behavior that recovers at a later time will be similar in many respects. Another way in which motor behavior may recover involves the production of movement by physiological mechanisms which, because of the conditions imposed by CNS injury, differ from normal ones. This mode of recovery may be anticipated when an entire system has been eliminated. In this case, if movement does indeed recover, the underlying physiological mechanisms, no longer available, must be replaced by others. Since the anatomical pathways mediating the relevant motor functions will then differ to some extent from the normal ones, it seems reasonable to expect alterations in the behavior as well.

Keywords

Dorsal Root Dorsal Horn Step Cycle Kinematic Pattern Postural Reflex 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 1988

Authors and Affiliations

  • M. E. Goldberger
    • 1
  1. 1.Department of AnatomyThe Medical College of Pennsylvania/EPPI DivisionPhiladelphiaUSA

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