Changes in cerebello-motor connectivity during procedural learning by actual execution and observation.

Massimiliano Oliveri, Emanuele Lo Gerfo, Carlo Caltagirone, Silvia Salerno, Giacomo Koch, Sara Torriero, Fabio Ferlazzo, Laura Petrosini, Massimiliano Oliveri, Sara Torriero

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41 Citazioni (Scopus)


The cerebellum is involved in motor learning of new procedures both during actual execution of a motor task and during observational training. These processes are thought to depend on the activity of a neural network that involves the lateral cerebellum and primary motor cortex (M1). In this study, we used a twin-coil TMS technique to investigate whether execution and observation of a visuomotor procedural learning task is related to modulation of cerebello-motor connectivity. We observed that, at rest, a magnetic conditioning pulse applied over the lateral cerebellum reduced the motor-evoked potentials obtained by stimulating the contralateral M1, indicating activation of a cerebello-motor connection. Furthermore, during procedural learning, cerebellar stimulation resulted in selective facilitation, not inhibition, of contralateral M1 excitability. The effects were evident when motor learning was obtained by actual execution of the task or by observation, but they disappeared if procedural learning had already been acquired by previous observational training. These results indicate that changes in cerebello-motor connectivity occur in relation to specific phases of procedural learning, demonstrating a complex pattern of excitatory and inhibitory drives modulated across time.
Lingua originaleEnglish
pagine (da-a)338-348
Numero di pagine11
RivistaJournal of Cognitive Neuroscience
Stato di pubblicazionePublished - 2011

All Science Journal Classification (ASJC) codes

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