Cited by 738Neural dynamics and brain functionNeuroscience and Neuropharmacology ResearchMotor Control and Adaptation

α-Oscillations in the monkey sensorimotor network influence discrimination performance by rhythmical inhibition of neuronal spiking

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Haegens, Saskia, Nácher, Verónica, Luna, Rogelio, Romo, Ranulfo, Jensen, Ole·2011·Proceedings of the National Academy of Sciences

Abstract

Extensive work in humans using magneto- and electroencephalography strongly suggests that decreased oscillatory α-activity (8–14 Hz) facilitates processing in a given region, whereas increased α-activity serves to actively suppress irrelevant or interfering processing. However, little work has been done to understand how α-activity is linked to neuronal firing. Here, we simultaneously recorded local field potentials and spikes from somatosensory, premotor, and motor regions while a trained monkey performed a vibrotactile discrimination task. In the local field potentials we observed strong activity in the α-band, which decreased in the sensorimotor regions during the discrimination task. This α-power decrease predicted better discrimination performance. Furthermore, the α-oscillations demonstrated a rhythmic relation with the spiking, such that firing was highest at the trough of the α-cycle. Firing rates increased with a decrease in α-power. These findings suggest that α-oscillations exercise a strong inhibitory influence on both spike timing and firing rate. Thus, the pulsed inhibition by α-oscillations plays an important functional role in the extended sensorimotor system.

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Crossref · 10.1073/pnas.1117190108

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  • Gamma power/spiking is anticorrelated with alpha/beta (8 to 30 Hz) power, which is higher under conditions of top-down control (e.g., attention and response inhibition).

    “They are anticorrelated with alpha/beta (8 to 30 Hz) power (26–29), which is higher under conditions of top-down control (e.g., attention and response inhibition) (30–34).”

    From Layer and rhythm specificity for predictive routing (2020) · cites this paper as [33]

    In “α-Power Correlates with Spike-Firing Rate” (page unavailable), the paper reports that lower α-power was associated with higher firing rates in several monkey sensorimotor regions. That supports the spiking–α-power relationship, but the cited results do not establish an anticorrelation involving gamma power or the full α/β range. The top-down-control clause has a separate citation group and is not assessed against this source. (LLM, conf=0.86)

    Experimental — accuracy not yet measured

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Authors
Haegens, S., Nácher, V., Luna, R., Romo, R., & Jensen, O.
Affiliations
  • Radboud University Nijmegen (NL)
  • Universidad Nacional Autónoma de México (MX)
Corresponding author
Romo, Ranulfo
Venue
Proceedings of the National Academy of Sciences
Published
2011-11-14
Volume
108
Issue
48
Pages
19377-19382
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W1996864540
Cited by
738
References
48
Citations by year
2026: 41 · 2025: 61 · 2024: 52 · 2023: 52 · 2022: 62 · 2021: 64 · 2020: 72 · 2019: 63 · 2018: 51 · 2017: 51 · 2016: 43 · 2015: 41 · 2014: 32 · 2013: 29 · 2012: 22
FWCI
13.32
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Howard Hughes Medical Institute
  • Consejo Nacional de Ciencia y Tecnología
  • Ministerie van Economische Zaken
  • Universidad Nacional Autónoma de México
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural dynamics and brain function
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Motor Control and Adaptation
Keywords
alpha oscillations, sensorimotor network, neuronal spiking, spike timing, firing rate, local field potentials, vibrotactile discrimination, somatosensory cortex, premotor cortex, motor cortex, monkeys, neural oscillations
MeSH terms
Action Potentials, Alpha Rhythm, Animals, Discrimination, Psychological, Macaca mulatta, Neurons, Physical Stimulation, Psychomotor Performance, Spectrum Analysis, Vibration

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