Cited by 119Neural dynamics and brain functionVisual perception and processing mechanismsNeuroscience and Neuropharmacology Research

Orientation selectivity and noise correlation in awake monkey area V1 are modulated by the gamma cycle

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Womelsdorf, Thilo, Lima, Bruss, Vinck, Martin, Oostenveld, Robert, Singer, Wolf, Neuenschwander, Sergio, Fries, Pascal·2012·Proceedings of the National Academy of Sciences

Abstract

Gamma-band synchronization adjusts the timing of excitatory and inhibitory inputs to a neuron. Neurons in the visual cortex are selective for stimulus orientation because of dynamic interactions between excitatory and inhibitory inputs. We hypothesized that these interactions and hence also orientation selectivity vary during the gamma cycle. We determined for each spike its phase relative to the gamma cycle. As a function of gamma phase, we then determined spike rates and their orientation selectivity. Orientation selectivity was modulated by gamma phase. The firing rate of spiking activity that occurred close to a neuron's mean gamma phase of firing was most orientation selective. This stimulus-selective signal could best be conveyed to postsynaptic neurons if it were not corrupted by noise correlations. Noise correlations between firing rates were modulated by gamma phase such that they were not statistically detectable for the spiking activity occurring close to a neuron's mean gamma phase of firing. Thus, gamma-band synchronization produces spiking activity that carries maximal stimulus selectivity and minimal noise correlation in its firing rate, and at the same time synchronizes this spiking activity for maximal impact on postsynaptic targets.

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  • Gamma-band (30-80 Hz) synchronization is beneficial for information coding, inter-areal transmission, and behavioral performance.

    “Several theoretical and empirical studies have suggested that one important temporal feature of cortical sensory processing is gamma-band (30–80 Hz) synchronization, which is beneficial for information coding (Vinck et al., 2010; Womelsdorf et al., 2012), inter-areal transmission (Bosman et al., 2012; Womelsdorf et al., 2007) and behavioral performance”

    From Waking state: rapid variations modulate neural and behavioral responses (2015) · cites this paper as Womelsdorf et al., 2012

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Authors
Womelsdorf, T., Lima, B., Vinck, M., Oostenveld, R., Singer, W., Neuenschwander, S., & Fries, P.
Affiliations
  • Radboud University Nijmegen (NL)
  • Max Planck Institute for Brain Research (DE)
  • Max Planck Society (DE)
  • Goethe University Frankfurt (DE)
Venue
Proceedings of the National Academy of Sciences
Published
2012-02-27
Volume
109
Issue
11
Pages
4302-4307
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2121164361
Cited by
119
References
51
Citations by year
2026: 4 · 2025: 8 · 2024: 9 · 2023: 5 · 2022: 4 · 2021: 8 · 2020: 8 · 2019: 9 · 2018: 6 · 2017: 7 · 2016: 17 · 2015: 13 · 2014: 6 · 2013: 10 · 2012: 5
FWCI
5.57
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)
  • Americanae (AECID Library) (publishedVersion, other-oa)
  • UvA-DARE (University of Amsterdam) (publishedVersion)
  • LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) (publishedVersion, other-oa)
  • Radboud Repository (Radboud University) (submittedVersion)
  • Max Planck Institute for Plasma Physics (submittedVersion)
  • Data Archiving and Networked Services (DANS) (submittedVersion)
Funders
  • European Science Foundation
  • Max-Planck-Gesellschaft
  • Canadian Institutes of Health Research
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural dynamics and brain function
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Visual perception and processing mechanisms
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
Keywords
gamma-band synchronization, orientation selectivity, noise correlation, primary visual cortex, area V1, excitatory-inhibitory interactions, firing rate, neuronal synchronization, monkeys
MeSH terms
Action Potentials, Animals, Haplorhini, Cortical Synchronization, Noise, Orientation, Visual Cortex, Wakefulness

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