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Estimating the sources of motor errors for adaptation and generalization

Identifieur interne : 004C74 ( Main/Merge ); précédent : 004C73; suivant : 004C75

Estimating the sources of motor errors for adaptation and generalization

Auteurs : Max Berniker ; Konrad Kording

Source :

Nature neuroscience [ 1097-6256 ] ; 2008.

RBID : PMC:2707921

Abstract

Motor adaptation is usually defined as the process by which our nervous system produces accurate movements, while the properties of our bodies and our environment continuously change. Numerous experimental and theoretical studies have characterized this process by assuming that the nervous system uses internal models to compensate for motor errors. Here we extend these approaches and construct a probabilistic model that not only compensates for motor errors but estimates the sources of these errors. These estimates dictate how the nervous system should generalize. For example, estimated changes of limb properties will affect movements across the workspace but not movements with the other limb. We provide evidence that many movement generalization phenomena emerge from a strategy by which the nervous system estimates the sources of our motor errors.

Url:

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2707921

DOI: 10.1038/nn.2229
PubMed: 19011624
PubMed Central: 2707921

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PMC:2707921

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Estimating the sources of motor errors for adaptation and generalization

Estimating the sources of motor errors for adaptation and generalization

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