Cited by 1,320Neural dynamics and brain functionVisual perception and processing mechanismsFunctional Brain Connectivity Studies

Visual areas exert feedforward and feedback influences through distinct frequency channels

Open access
Bastos, André Moraes, Vezoli, Julien, Bosman, Conrado Arturo, Schoffelen, Jan-Mathijs, Oostenveld, Robert, Dowdall, Jarrod Robert, De Weerd, Peter, Kennedy, Henry +1 more·2015·Neuron

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Abstract

Visual cortical areas subserve cognitive functions by interacting in both feedforward and feedback directions. While feedforward influences convey sensory signals, feedback influences modulate feedforward signaling according to the current behavioral context. We investigated whether these interareal influences are subserved differentially by rhythmic synchronization. We correlated frequency-specific directed influences among 28 pairs of visual areas with anatomical metrics of the feedforward or feedback character of the respective interareal projections. This revealed that in the primate visual system, feedforward influences are carried by theta-band (∼ 4 Hz) and gamma-band (∼ 60-80 Hz) synchronization, and feedback influences by beta-band (∼ 14-18 Hz) synchronization. The functional directed influences constrain a functional hierarchy similar to the anatomical hierarchy, but exhibiting task-dependent dynamic changes in particular with regard to the hierarchical positions of frontal areas. Our results demonstrate that feedforward and feedback signaling use distinct frequency channels, suggesting that they subserve differential communication requirements.

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Crossref · 10.1016/j.neuron.2014.12.018

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  • Adding layer-specific connectivity to simulations produces frequency-band-specific causality patterns-bottom-up gamma from supragranular layers and top-down alpha-beta from bottom layers-which have been observed empirically across the cortical hierarchy in humans and non-human primates.

    “Addition of layer-specific connectivity in simulations (Mejias et al., 2016) leads to the emergence of frequency-band-specific patterns of causality (bottom-up gamma arising primarily in supragranular layers versus top-down alpha-beta arising primarily from bottom layers)”

    From Conscious Processing and the Global Neuronal Workspace Hypothesis (2020) · cites this paper as Bastos et al., 2015

    Split into 2 atoms — 0 confirmed, 2 partially supported, 0 disputed, 0 misattributed, 0 unverifiable. Expand the claim to see per-atom verdicts.

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  • Evidence from monkey and human studies indicates that gamma-band activity predominantly emanates from forward projections in superficial layers.

    “Consistent with the proposed laminar profile of PP dynamics, evidence from monkey and human studies indicate that gamma‐band activity predominantly emanates from forward projections in superficial layers, while descending activity, carried by alpha/beta‐band activity, is strongest in layers 5/6.”

    From Evaluating the neurophysiological evidence for predictive processing as a model of perception (2020) · cites this paper as [170]

    The Discussion (p. 7) reports that gamma-band communication is feedforward and that gamma synchronization predominates in superficial layers. But the Results (p. 3) describe recordings from two macaque monkeys, not humans, and the Discussion says the proposed link between frequency-specific influences and cortical layers still needs direct testing. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • In the primate visual system, backward signaling is carried out through beta-band activity (12-30 Hz).

    “In the primate visual system, signals transmitted forward through hierarchical levels are expressed in theta‐band (4–8 Hz) and gamma‐band (>30 Hz) activity, while backward signaling is carried out through beta‐band activity (12–30 Hz).”

    From Evaluating the neurophysiological evidence for predictive processing as a model of perception (2020) · cites this paper as [170]

    The Discussion (p. 7) states that feedback communication among primate visual cortical areas uses the beta band. The specified 12–30 Hz range does not match the bands defined for the two monkeys in Data Analysis General (p. 11): 12–24 Hz and 7–21 Hz. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • In the primate visual system, signals transmitted forward through hierarchical levels are expressed in theta-band (4-8 Hz) and gamma-band (>30 Hz) activity.

    “In the primate visual system, signals transmitted forward through hierarchical levels are expressed in theta‐band (4–8 Hz) and gamma‐band (>30 Hz) activity, while backward signaling is carried out through beta‐band activity (12–30 Hz).”

    From Evaluating the neurophysiological evidence for predictive processing as a model of perception (2020) · cites this paper as [170]

    The Summary (p. 2) and Discussion (p. 7) support the central claim that feedforward influences in primate visual areas use theta- and gamma-band activity. The stated theta range does not match the study’s definition: Data Analysis General (p. 11) defines theta as 2–6 Hz in both monkeys, not 4–8 Hz. The measured gamma bands fall above 30 Hz. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • 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 [30]

    The section “Attention Enhances Top-Down and Bottom-up Influences in a Spatially Specific Manner” (p. 7) reports stronger top-down beta-band Granger-causal influences with selective attention, supporting the attention example. It measures directed influences rather than alpha/beta power, and the cited passages do not establish the response-inhibition example or an anticorrelation with gamma power or spiking. (LLM, conf=0.84)

    Experimental — accuracy not yet measured

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Authors
Bastos, A. M., Vezoli, J., Bosman, C. A., Schoffelen, J.-M., Oostenveld, R., Dowdall, J. R., De Weerd, P., Kennedy, H., & Fries, P.
Affiliations
  • Radboud University Nijmegen (NL)
  • Max Planck Society (DE)
  • Inserm (FR)
Corresponding author
Fries, Pascal
Venue
Neuron
Publisher
Elsevier BV
Published
2015-01
Volume
85
Issue
2
Pages
390-401
ISSN
0896-6273 (ISSN-L)
OpenAlex
W2096629297
Cited by
1,320
References
55
Citations by year
2026: 104 · 2025: 113 · 2024: 130 · 2023: 120 · 2022: 116 · 2021: 119 · 2020: 121 · 2019: 112 · 2018: 126 · 2017: 92 · 2016: 100 · 2015: 57 · 2014: 9
FWCI
47.98
Type
journal article
Language
en
Open access
Locations
  • Neuron (publishedVersion)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • UvA-DARE (University of Amsterdam) (publishedVersion)
  • Radboud Repository (Radboud University) (submittedVersion)
  • Research Publications (Maastricht University) (submittedVersion, other-oa)
  • MPG.PuRe (Max Planck Society) (submittedVersion)
  • MPG.PuRe (Max Planck Society) (submittedVersion, other-oa)
  • Data Archiving and Networked Services (DANS) (submittedVersion)
Funders
  • National Science Foundation (2009090358)
  • U.S. Department of State
  • European Commission (200728)
  • European Science Foundation
  • Volkswagen Foundation (I/79876)
  • Agence Nationale de la Recherche (ANR-11-BSV4-501, ANR-14-CE13-0033, ANR-15-CE32-0016, ANR-11-LABX-0042)
  • Ministerie van Economische Zaken
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural dynamics and brain function
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Visual perception and processing mechanisms
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Functional Brain Connectivity Studies
Keywords
visual cortex, rhythm synchronization, theta band, gamma band, beta band, functional hierarchy, frontal area, primate visual system
MeSH terms
Animals, Beta Rhythm, Electroencephalography, Macaca mulatta, Male, Photic Stimulation, Theta Rhythm, Visual Cortex, Feedback, Physiological, Gamma Rhythm

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