The ‘Little Brain’, often forgotten: The Cerebellum

This post is part of a series “Systems Neuroscience for AI: An Introductory Guide to the Literature”.

Guide contents


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The traditional view of the cerebellum is that it refines movement. Given that so much valuable neuroscience had to be excluded from the guide, why then should such a limited brain region get a whole section? A modern view of the cerebellum affords it a much broader role, including in cognition. Before addressing this role with respect to the systems treated in previous sections, we must first consider it in isolation.

As a brief primer on the well-studied circuitry and basic function of the cerebellum, I recommend this 10 minute video.

The Cerebellum and Cognitive Function: 25 Years of Insight from Anatomy and Neuroimaging

Vol 80, Issue 3, p807-815, 30 October 2013
Randy L. Buckner
https://doi.org/10.1016/j.neuron.2013.10.044

Abstract
Twenty-five years ago the first human functional neuroimaging studies of cognition discovered a surprising response in the cerebellum that could not be attributed to motor demands. This controversial observation challenged the well-entrenched view that the cerebellum solely contributes to the planning and execution of movement. Recurring neuroimaging findings combined with key insights from anatomy and case studies of neurological patients motivated a reconsideration of the traditional model of cerebellar organization and function. The majority of the human cerebellum maps to cerebral association networks in an orderly manner that includes a mirroring of the prominent cerebral asymmetries for language and attention. These findings inspire exploration of the cerebellum’s contributions to a diverse array of functional domains and neuropsychiatric disorders.

Next post: The Cerebello-basal ganglia-thalamo-cortical system

Written on April 29, 2019