Links from Complex Spikes to Local Plasticity and Motor Learning in the Cerebellum of Awake-behaving Monkeys
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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 [corrected] between complex spikes, simple-spike plasticity and behavior [corrected] 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.
Neural circuit mechanisms to transform cerebellar population dynamics for motor control in monkeys.
Herzfeld D, Lisberger S bioRxiv. 2025; .
PMID: 40027752 PMC: 11870495. DOI: 10.1101/2025.02.21.639459.
Control of tongue movements by the Purkinje cells of the cerebellum.
Hage P, Amin Fakharian M, Shoup A, Pi J, Sedaghat-Nejad E, Orozco S bioRxiv. 2025; .
PMID: 39829829 PMC: 11741394. DOI: 10.1101/2024.07.25.604757.
Associative plasticity of granule cell inputs to cerebellar Purkinje cells.
Conti R, Auger C Elife. 2024; 13.
PMID: 39660722 PMC: 11634063. DOI: 10.7554/eLife.96140.
A vector calculus for neural computation in the cerebellum.
Amin Fakharian M, Shoup A, Hage P, Elseweifi H, Shadmehr R bioRxiv. 2024; .
PMID: 39605699 PMC: 11601439. DOI: 10.1101/2024.11.14.623565.
How neural systems transform synaptic plasticity into behavioral learning.
Lisberger S Proc Natl Acad Sci U S A. 2024; 121(45):e2419747121.
PMID: 39467142 PMC: 11551359. DOI: 10.1073/pnas.2419747121.