Evidence map›Paper›PMID 29344763›Full record

ArticleCognitive, affective & behavioral neuroscience2018

Visual awareness negativity is an early neural correlate of awareness: A preregistered study with two Gabor sizes.

Rasmus Eklund, Stefan Wiens

Abstract read
In one paragraph

Article in Cognitive, affective & behavioral neuroscience, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing 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

21 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
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  6. Article
  7. Interoceptive signals shape the earliest markers and neural pathway to awareness at the visual threshold.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  8. Review
  9. Isolating Neural Signatures of Conscious Speech Perception with a No-Report Sine-Wave Speech Paradigm.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2024
    Article
  10. Moving in response to an unseen visual stimulus.Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology · 2024
    Article
  11. Article
  12. Article
  13. Neural electrophysiological correlates of detection and identification awareness.Cognitive, affective & behavioral neuroscience · 2023
    Article
  14. Review
  15. Article
  16. Article
  17. Review
  18. Article
  19. Article
  20. Article
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.

Rasmus EklundPsykologiska Institutionen, Stockholm University, Stockholm, Sweden.
Stefan WiensPsykologiska Institutionen, Stockholm University, Stockholm, Sweden. sws@psychology.su.se.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Electrophysiological recordings are commonly used to study the neural correlates of consciousness in humans. Previous research is inconsistent as to whether awareness can be indexed with visual awareness negativity (VAN) at about 200 ms or if it occurs later. The present study was preregistered with two main aims: First, to provide independent evidence for or against the presence of VAN, and second, to study whether stimulus size may account for the inconsistent findings. Subjects were shown low-contrast Gaussian filtered gratings (Gabor patches) in the four visual quadrants. Gabor size (large and small) was varied in different sessions and calibrated to each subject's threshold of visual awareness. Event-related potentials were derived from trials in which subjects localized the Gabors correctly to capture the difference between trials in which they reported awareness versus no awareness. Bayesian analyses revealed very strong evidence for the presence of VAN for both Gabor sizes. However, there was no evidence for or against an effect of stimulus size. The present findings provide evidence for VAN as an early neural correlate of awareness.

Indexed as

AdultAwarenessBrainConsciousnessElectroencephalographyEvoked PotentialsEvoked Potentials, VisualFemaleHumansMalePhotic StimulationVisual PerceptionYoung AdultEvent-related potentialsGabor sizeLate positivityVisual awarenessVisual awareness negativity

Identifiers

PMID29344763
PMCPMC5823961

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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.