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Cerebellar-driven cortical dynamics enable task acquisition, switching and consolidation

Joseph Pemberton, View ORCID ProfilePaul Chadderton, View ORCID ProfileRui Ponte Costa
doi: https://doi.org/10.1101/2022.11.14.516257
Joseph Pemberton
1Computational Neuroscience Unit, Intelligent Systems Labs, Faculty of Engineering, University of Bristol, Bristol, BS8 1TH, United Kingdom
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  • For correspondence: joe.pemberton@bristol.ac.uk rui.costa@bristol.ac.uk
Paul Chadderton
2School of Physiology, Pharmacology and Neuroscience, Faculty of Life Sciences, University of Bristol, Bristol, BS8 1TH, United Kingdom
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Rui Ponte Costa
1Computational Neuroscience Unit, Intelligent Systems Labs, Faculty of Engineering, University of Bristol, Bristol, BS8 1TH, United Kingdom
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  • For correspondence: joe.pemberton@bristol.ac.uk rui.costa@bristol.ac.uk
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Summary

During task execution cortical dynamics must bridge sensory cues with future behavioural outcomes. However, how cortical networks acquire such task-specific dynamics remains unclear. Here we propose that the cerebellum drives cortical dynamics to enable rapid and flexible task acquisition. We model cerebellar networks that are tuned through timing rules to provide cortical networks with task-outcome predictions. First, using sensorimotor tasks we show that cerebellar feedback with fixed cortical connectivity is sufficient for rapid task acquisition and one-shot task switching. Next, we demonstrate that, when trained in working memory tasks, the cerebellum can also underlie the maintenance of cognitive-specific dynamics, explaining a range of optogenetic and behavioural observations. Finally, we use our model to introduce a systems consolidation theory in which task information is gradually transferred from the cerebellum to the cortex. In summary, our results suggest that cortico-cerebellar loops are critical for task acquisition, switching and consolidation in the brain.

Competing Interest Statement

The authors have declared no competing interest.

Copyright 
The copyright holder for this preprint is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under a CC-BY-NC 4.0 International license.
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Posted November 14, 2022.
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Cerebellar-driven cortical dynamics enable task acquisition, switching and consolidation
Joseph Pemberton, Paul Chadderton, Rui Ponte Costa
bioRxiv 2022.11.14.516257; doi: https://doi.org/10.1101/2022.11.14.516257
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Cerebellar-driven cortical dynamics enable task acquisition, switching and consolidation
Joseph Pemberton, Paul Chadderton, Rui Ponte Costa
bioRxiv 2022.11.14.516257; doi: https://doi.org/10.1101/2022.11.14.516257

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