Evidence map›Paper›PMID 30625320›Full record

ArticleCell reports2019

The Hidden Spatial Dimension of Alpha: 10-Hz Perceptual Echoes Propagate as Periodic Traveling Waves in the Human Brain.

Diego Lozano-Soldevilla, Rufin VanRullen

Abstract read
In one paragraph

Article in Cell reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

45 citing papers in PubMed.

  1. Article
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  4. Traveling-wave transcranial alternating current stimulation (twtACS) causally links neural timing to cognitive function.Proceedings of the National Academy of Sciences of the United States of America · 2026
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  8. Brain-Wide Spatiotemporally Distinct Traveling Waves Drive Anxiety-Like Behaviors in Mice.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
    Article
  9. Article
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  14. Precision data-driven modeling of cortical dynamics reveals person-specific mechanisms underpinning brain electrophysiology.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  15. Cortical travelling waves relate to variation in personality traits.Imaging neuroscience (Cambridge, Mass.) · 2025
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

2 authors.

Diego Lozano-SoldevillaCNRS, UMR5549, Centre de Recherche Cerveau et Cognition, Faculté de Médecine de Purpan, Toulouse, France; Université Paul Sabatier, Toulouse, France.
Rufin VanRullenCNRS, UMR5549, Centre de Recherche Cerveau et Cognition, Faculté de Médecine de Purpan, Toulouse, France; Université Paul Sabatier, Toulouse, France. Electronic address: rufin.vanrullen@cnrs.fr.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

EEG reverse-correlation techniques have revealed that visual information processing entails a ∼10-Hz (alpha) occipital response that reverberates sensory inputs up to 1 s. However, the spatial distribution of these perceptual echoes remains unknown: are they synchronized across the brain, or do they propagate like a traveling wave? Here, in two experiments with varying stimulus locations, we demonstrate the systematic phase propagation of perceptual echoes. A single stimulation in the upper visual field produced an "echo traveling wave" propagating from posterior to frontal sensors. The simultaneous presentation of two independent stimuli in separate visual hemifields produced two superimposed traveling waves propagating in opposite directions. Strikingly, in each sensor, the phase of the two echoes differed, with a phase advance for the contralateral stimulus. Thus, alpha traveling waves sweep across the human brain, encoding stimulus position in the phase domain, in line with the 70-year-old "cortical scanning" hypothesis (Pitts and McCulloch, 1947).

Indexed as

Alpha RhythmAdultBrainEvoked Potentials, VisualFemaleHumansMaleVisual Fieldsalpha rhythmEEGimpulse response functionperceptual cyclestraveling wavevisual evoked potentials

Identifiers

PMID30625320
PMCPMC6326161

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.