Article abstract
Nature Neuroscience 11, 1185 - 1192 (2008)
Published online: 21 September 2008 | Corrected online: 15 January 2009 | Corrected online: 30 April 2009 | doi:10.1038/nn.2197
There is a Corrigendum (June 2009) associated with this Article.
Links from complex spikes to local plasticity and motor learning in the cerebellum of awake-behaving monkeys
Javier F Medina1 & Stephen G Lisberger2
Abstract
The hypothesis of cerebellar learning proposes that complex spikes in Purkinje cells engage mechanisms of plasticity in the cerebellar cortex; in turn, changes in the cerebellum depress the simple-spike response of Purkinje cells to a given stimulus and cause the adaptive modification of a motor behavior. Many elements of this hypothesis have been supported by prior experiments, and correlations have been found between complex spikes, simple-spike plasticity and behavior during the learning process. We carried out a trial-by-trial analysis of Purkinje cell responses in awake-behaving monkeys and found evidence for a causal role for complex spikes in the induction of cerebellar plasticity during a simple motor learning task. We found that the presence of a complex spike on one learning trial was linked to a substantial depression of simple-spike responses on the subsequent trial, at a time when behavioral learning was expressed.
- Department of Psychology, University of Pennsylvania, 3720 Walnut Street, Philadelphia, Pennsylvania 19104, USA.
- Howard Hughes Medical Institute, W. M. Keck Foundation Center for Integrative Neuroscience, and Department of Physiology, University of California San Francisco, 513 Parnassus Avenue, San Francisco, California 94143, USA.
Correspondence to: Stephen G Lisberger2 e-mail: sgl@phy.ucsf.edu
** The second sentence of the abstract should read "Many elements of this hypothesis have been supported by prior experiments, and correlations have been found between complex spikes, simple-spike plasticity and behavior during the learning process."
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