The DOI matches its Crossref record; 93 of the 93 references it cites were found in a registry or an index.
Sleep Spindles in Humans: Insights from Intracranial EEG and Unit Recordings
Open accessAbstract
Sleep spindles are an electroencephalographic (EEG) hallmark of non-rapid eye movement (NREM) sleep and are believed to mediate many sleep-related functions, from memory consolidation to cortical development. Spindles differ in location, frequency, and association with slow waves, but whether this heterogeneity may reflect different physiological processes and potentially serve different functional roles remains unclear. Here we used a unique opportunity to record intracranial depth EEG and single-unit activity in multiple brain regions of neurosurgical patients to better characterize spindle activity in human sleep. We find that spindles occur across multiple neocortical regions, and less frequently also in the parahippocampal gyrus and hippocampus. Most spindles are spatially restricted to specific brain regions. In addition, spindle frequency is topographically organized with a sharp transition around the supplementary motor area between fast (13-15 Hz) centroparietal spindles often occurring with slow-wave up-states, and slow (9-12 Hz) frontal spindles occurring 200 ms later on average. Spindle variability across regions may reflect the underlying thalamocortical projections. We also find that during individual spindles, frequency decreases within and between regions. In addition, deeper NREM sleep is associated with a reduction in spindle occurrence and spindle frequency. Frequency changes between regions, during individual spindles, and across sleep may reflect the same phenomenon, the underlying level of thalamocortical hyperpolarization. Finally, during spindles neuronal firing rates are not consistently modulated, although some neurons exhibit phase-locked discharges. Overall, anatomical considerations can account well for regional spindle characteristics, while variable hyperpolarization levels can explain differences in spindle frequency.
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“Frequencies below 20 Hz were avoided because of the potential overlap with fast sleep spindles, which can reach 18 Hz 65,66 .”
From The neural correlates of dreaming (2017) · cites this paper as [65]
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“Importantly, this research revealed that in the neocortex, single spindles typically express as a local phe-nomena and are restricted to specific regions and circuits, regardless of whether or not they are synchronized in phase with central thalamic spindle generation.”
From About Sleep's Role in Memory (2013) · cites this paper as [38]
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“As for spindles, only the classic fast spindles display the strong phase synchronization with the emergent depolarizing upstate of the slow oscillation.Slow frontal spindles, in contrast, tend to follow fast spindles by 200 -500 ms and thus occur already in the up-to-down state transition of the slow oscillation (38,826).”
From About Sleep's Role in Memory (2013) · cites this paper as [38]
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Cited by
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Rasch, B., & Born, J. (2013) · Physiological Reviews · doi:10.1152/physrev.00032.2012 · Cited by 2,783
“Slow frontal spindles, in contrast, tend to follow fast spindles by 200–500 ms and thus occur already in the up-to-down state transition of the slow oscillation (38, 826).”
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Sleep spindles: mechanisms and functions
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Metadata
- Authors
- Andrillon, T., Nir, Y., Staba, R. J., Ferrarelli, F., Cirelli, C., Tononi, G., & Fried, I.
- Affiliations
- University of Wisconsin–Madison (US)
- University of California, Los Angeles (US)
- ORCID
- Venue
- The Journal of Neuroscience
- Publisher
- Society for Neuroscience
- Published
- 2011-12-07
- Volume
- 31
- Issue
- 49
- Pages
- 17821-17834
- ISSN
- 0270-6474 (ISSN-L)
- 1529-2401
- PMC
- PMC3270580
- OpenAlex
- W2004454719
- Cited by
- 504
- References
- 93
- Citations by year
- 2026: 26 · 2025: 41 · 2024: 37 · 2023: 57 · 2022: 40 · 2021: 30 · 2020: 48 · 2019: 38 · 2018: 38 · 2017: 46 · 2016: 27 · 2015: 25 · 2014: 21 · 2013: 24 · 2012: 6
- FWCI
- 8.29
- Type
- journal article
- Language
- en
- Open access
- hybrid
- doi.org
- Licence
- Locations
- Journal of Neuroscience (publishedVersion, cc-by-nc-sa)
- Europe PMC (PubMed Central) (publishedVersion)
- PubMed Central (publishedVersion)
- PubMed (publishedVersion)
- Funders
- National Institutes of Health (DP1OD000579)
- National Institute of Neurological Disorders and Stroke (R01NS071048)
- Topics
- Life Sciences › Neuroscience › Cognitive Neuroscience › Sleep and Wakefulness Research
- Life Sciences › Neuroscience › Cognitive Neuroscience › Neural dynamics and brain function
- Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and related disorders
- Keywords
- sleep spindles, NREM sleep, single-unit activity, supplementary motor area, parahippocampal gyrus, hippocampus, spindle frequency, topographic organization
- MeSH terms
- Action Potentials, Adult, Brain, Brain Mapping, Electroencephalography, Electromyography, Electrooculography, Epilepsy, Female, Humans, Male, Middle Aged, Neurons, Sleep, Spectrum Analysis, Time Factors, Polysomnography, Nonlinear Dynamics, Young Adult, Brain Waves
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