Encyclopedia of Computational Neuroscience

Living Edition
| Editors: Dieter Jaeger, Ranu Jung

Basal Ganglia: Control of Saccades

  • Benoît Girard
Living reference work entry
DOI: https://doi.org/10.1007/978-1-4614-7320-6_516-1

Definition

The basal ganglia are a set of subcortical interconnected nuclei, subdivided in parallel circuits. They form loops with specific cortical and subcortical regions and play a central role in the selection of actions as well as in learning to bias these selections towards the most profitable options. One of these loops appears to be specialized in saccadic eye movements. Most of the existing computational models consider that it is responsible for the choice, among all possible targets, of the target of the next saccade.

Detailed Description

Basal Ganglia Saccadic Circuitry

The basal ganglia are a set of subcortical nuclei common to all vertebrates (see “Basal Ganglia: Overview”). The basal ganglia are components of two main types of loops: cortico-baso-thalamo-cortical loops (Alexander et al. 1986) as well as subcortical ones (McHaffie et al. 2005). Within these two categories, sub-loops can be characterized, dedicated to various functions; one cortical loop dedicated to eye...

Keywords

Basal Ganglion Reinforcement Learning Superior Colliculus Reward Prediction Error Cortical Loop 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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References

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Further Reading

  1. Girard B, Berthoz A (2005) From brainstem to cortex: computational models of saccade generation circuitry. Prog Neurobiol 77:215–251PubMedCrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  1. 1.Sorbonne UniversitésUPMC Univ Paris 06ParisFrance