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A cognitive signal for the proactive timing of action in macaque LIP
Abstract
Natural movements often occur without any immediate external event to cause them. In contrast to reactive movements, which are directly triggered by external cues, it is less clear how these proactive actions are initiated or when they will be made. We found that single neurons in the macaque's lateral intraparietal area (LIP) exhibit gradual firing rate elevations that reach a consistent value--which may correspond to a threshold--at the time of proactive, but not reactive, arm movements. This activity differs from sensory- and motor-related activity recorded in nearby cortical areas and could provide an internal trigger for action when abrupt external triggers in the visual input are unavailable.
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“A time-dependent rise of firing rate in LIP and elsewhere has been interpreted as a representation of elapsed time in the form of a hazard rate or anticipation function 12,33–35.”
From Decision-making with multiple alternatives (2008) · cites this paper as [35]
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Metadata
- Authors
- Maimon, G., & Assad, J. A.
- Affiliations
- Harvard University (US)
- Corresponding author
- Assad, John A
- Venue
- Nature Neuroscience
- Published
- 2006-06-04
- Volume
- 9
- Issue
- 7
- Pages
- 948-955
- ISSN
- 1097-6256 (ISSN-L)
- 1546-1726
- OpenAlex
- W1981330394
- Cited by
- 185
- References
- 38
- Citations by year
- 2026: 6 · 2025: 6 · 2024: 6 · 2023: 8 · 2022: 10 · 2021: 8 · 2020: 11 · 2019: 6 · 2018: 8 · 2017: 8 · 2016: 11 · 2015: 11 · 2014: 13 · 2013: 13 · 2012: 9
- FWCI
- 5.18
- Type
- journal article
- Language
- en
- Open access
- closed
- Licence
- www.springer.com/tdm (tdm)
- Locations
- Nature Neuroscience (publishedVersion)
- PubMed (publishedVersion)
- Funders
- National Science Foundation
- McKnight Endowment Fund for Neuroscience
- National Eye Institute (R01EY012106, EY12106)
- 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
- proactive behavior, lateral intraparietal area, action timing, arm movement, single-unit activity, macaque
- MeSH terms
- Action Potentials, Animals, Behavior, Animal, Cognition, Macaca mulatta, Male, Models, Neurological, Movement, Neurons, Parietal Lobe, Photic Stimulation, Psychomotor Performance, Sensory Thresholds, Time Factors, Time Perception, Logistic Models
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