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The DOI matches its Crossref record; 72 of the 72 references it cites were found in a registry or an index.

Single-trial neural dynamics are dominated by richly varied movements

Open access
Musall, Simon, Kaufman, Matthew T., Juavinett, Ashley L., Gluf, Steven, Churchland, Anne K.·2019·Nature Neuroscience

Published version of a preprint

Abstract

When experts are immersed in a task, do their brains prioritize task-related activity? Most efforts to understand neural activity during well-learned tasks focus on cognitive computations and task-related movements. We wondered whether task-performing animals explore a broader movement landscape and how this impacts neural activity. We characterized movements using video and other sensors and measured neural activity using widefield and two-photon imaging. Cortex-wide activity was dominated by movements, especially uninstructed movements not required for the task. Some uninstructed movements were aligned to trial events. Accounting for them revealed that neurons with similar trial-averaged activity often reflected utterly different combinations of cognitive and movement variables. Other movements occurred idiosyncratically, accounting for trial-by-trial fluctuations that are often considered ‘noise’. This held true throughout task-learning and for extracellular Neuropixels recordings that included subcortical areas. Our observations argue that animals execute expert decisions while performing richly varied, uninstructed movements that profoundly shape neural activity. The authors use a linear model to reveal how neural activity patterns are related to cognition or movements. They find that uninstructed movements dominate single-cell and population activity throughout the brain, outpacing task-related activity.

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  1. Karabatsos, G. Marginal maximum likelihood estimation methods for the tuning parameters of ridge, power ridge, and generalized ridge regression. Commun. Stat. Simulat. (2017). · doi:10.1080/03610918.2017.1321119

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Metadata

Authors
Musall, S., Kaufman, M. T., Juavinett, A. L., Gluf, S., & Churchland, A. K.
Venue
Nature Neuroscience
Published
2019-09-24
Volume
22
Issue
10
Pages
1677-1686
ISSN
  • 1097-6256 (ISSN-L)
  • 1546-1726
OpenAlex
W2976024218
Cited by
1,075
References
72
FWCI
56.24
Type
journal article
Language
en
Open access
green
Licence

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CoChat. (2026). Citation check: Single-trial neural dynamics are dominated by richly varied movements. https://app.cochat.ai/papers/10.1038/s41593-019-0502-4
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Musall, S., Kaufman, M. T., Juavinett, A. L., Gluf, S., & Churchland, A. K. (2019). Single-trial neural dynamics are dominated by richly varied movements. Nature Neuroscience. https://doi.org/10.1038/s41593-019-0502-4

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