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



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