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- W145053703 startingPage "491" @default.
- W145053703 abstract "The term “cerebellar ataxia” encompasses various forms of cerebellar disorders encountered during daily practice. The scope of this chapter is to give an overview of the neurophysiological tests, which provides important information for the understanding, and the management of cerebellar ataxias. The relevant neuroanatomy of cerebellar pathways and the clinical symptoms of cerebellar disorders are discussed in the first and second part, respectively. In the third part, results of neurophysiological studies in cerebellar patients are detailed. In particular, the results of investigations dedicated to motor control and learning are discussed. Rather than a principal driver of movement, the cerebellum is viewed currently as a tonic reinforcer and an adaptative modulator or controller. Controllers are intended to optimize the movements, enhancing the stability of a moving system. They are used in machines to diminish perturbation-induced oscillations or to improve the smoothness and accuracy during the execution of a task. They play a critical role for fast movements when several interlinked segments are involved. Because cerebellar deficits are more prominent in quick movements involving several joints, the theory of the controller fits with clinical observations in cerebellar patients. Cerebellum plays a determinant role during motor learning. Therefore, it works as an adaptative controller." @default.
- W145053703 created "2016-06-24" @default.
- W145053703 creator A5031860696 @default.
- W145053703 date "2003-01-01" @default.
- W145053703 modified "2023-09-24" @default.
- W145053703 title "Chapter 31 Cerebellar ataxias" @default.
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