Cited by 565Motor Control and AdaptationVisual perception and processing mechanismsNeural and Behavioral Psychology Studies

A Pathway in Primate Brain for Internal Monitoring of Movements

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Sommer, Marc A., Wurtz, Robert H.·2002·Science

Abstract

It is essential to keep track of the movements we make, and one way to do that is to monitor correlates, or corollary discharges, of neuronal movement commands. We hypothesized that a previously identified pathway from brainstem to frontal cortex might carry corollary discharge signals. We found that neuronal activity in this pathway encodes upcoming eye movements and that inactivating the pathway impairs sequential eye movements consistent with loss of corollary discharge without affecting single eye movements. These results identify a pathway in the brain of the primate Macaca mulatta that conveys corollary discharge signals.

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Crossref · 10.1126/science.1069590

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  • Animal and patient investigations have supplied the strongest direct support for forward models.

    “Most direct evidence for forward models has been obtained in animal preparations (e.g., Troyer and Doupe, 2000; Sommer and Wurtz, 2002) or patient studies (e.g., Desmurget et al., 2009).”
  • Electrophysiological recordings from a transiently inactivated circuit in the brain have shed light on how corollary discharge is used for saccadic sequencing in rhesus monkeys.

    “Electrophysiological recordings from a transiently inactivated circuit in the brain have shed some light on how CD is used for saccadic sequencing in rhesus monkeys62,63,65 (FIG. 6Aa).”

    From Corollary discharge across the animal kingdom (2008) · cites this paper as [62]

  • The results conformed to the prediction that impairing corollary discharge of the first eye movements would cause incorrect second saccades, revealing a loss of corollary discharge.

    “The results conformed to this prediction, revealing a loss of CD.”

    From Corollary discharge across the animal kingdom (2008) · cites this paper as [62]

  • Corollary discharge has repeatedly been implicated in the process of updating the internal record of the current saccade to facilitate planning the next.

    “CD has repeatedly been implicated in this process59–64.”

    From Corollary discharge across the animal kingdom (2008) · cites this paper as [62]

  • When the midbrain-to-prefrontal pathway was inactivated by muscimol, behavioural deficits in the simplest saccadic sequencing task were observed.

    “When this pathway was inactivated by muscimol, a GABAA (γ-aminobutyric acid receptor type A) agonist, behavioural deficits in the simplest saccadic sequencing task were observed.”

    From Corollary discharge across the animal kingdom (2008) · cites this paper as [62]

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Authors
Sommer, M. A., & Wurtz, R. H.
Affiliations
National Institutes of Health (US)
Corresponding author
Sommer, Marc A.
Venue
Science
Published
2002-05-24
Volume
296
Issue
5572
Pages
1480-1482
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2122905397
Cited by
565
References
22
Citations by year
2026: 9 · 2025: 18 · 2024: 19 · 2023: 22 · 2022: 18 · 2021: 23 · 2020: 20 · 2019: 25 · 2018: 23 · 2017: 22 · 2016: 25 · 2015: 33 · 2014: 25 · 2013: 23 · 2012: 34
FWCI
10.39
Type
journal article
Language
en
Open access
Licence
cc-by-nc-nd
Locations
  • Science (publishedVersion)
  • PubMed (publishedVersion)
  • DukeSpace (Duke University) (submittedVersion, cc-by-nc-nd)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Motor Control and Adaptation
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Visual perception and processing mechanisms
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
Keywords
corollary discharge, motion monitoring, eye movements, brainstem, frontal cortex, neuronal activity, rhesus monkeys
MeSH terms
Animals, Brain Mapping, Fixation, Ocular, Frontal Lobe, Macaca mulatta, Muscimol, Neural Pathways, Neurons, Proprioception, Saccades, Superior Colliculi, GABA Agonists, Mediodorsal Thalamic Nucleus

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