Evidence map›Paper›PMID 30867527›Full record

ArticleScientific reports2019

Sustained response to symmetry in extrastriate areas after stimulus offset: An EEG study.

Marco Bertamini, Giulia Rampone, Jennifer Oulton, Semir Tatlidil, Alexis D J Makin

Abstract read
In one paragraph

Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing 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

9 citing papers in PubMed.

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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

5 authors.

Marco BertaminiUniversity of Liverpool, Department of Psychological Science, Liverpool, L697ZA, UK. m.bertamini@liv.ac.uk.ORCID 0000-0001-8617-6864
Giulia RamponeUniversity of Liverpool, School of Psychology, Liverpool, L697ZA, UK.
Jennifer OultonLiverpool John Moores University, Sport and Exercise Sciences, Liverpool, L2 2QP, UK.
Semir TatlidilUniversity of Liverpool, Department of Psychological Science, Liverpool, L697ZA, UK.
Alexis D J MakinUniversity of Liverpool, Department of Psychological Science, Liverpool, L697ZA, UK.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Electrophysiological (EEG) studies of human perception have found that amplitude at posterior electrodes is more negative for symmetrical patterns compared to asymmetrical patterns. This negativity lasts for hundreds of milliseconds and it has been called sustained posterior negativity (SPN). Symmetry activates a network of visual areas, including the lateral occipital complex (LOC). The SPN is a response to presence of symmetry in the image. Given the sustained nature of this activation, in this study we tested the persistence of the SPN after stimulus offset. Two shapes were presented (for 0.5 s each) with a 1 s blank interval in between. We observed a sustained response after stimulus offset, irrespective of whether the task required processing of shape information. This supports the idea that the response to symmetry is generated by information in the image, independently of task, and that it is sustained over approximately one second post stimulus onset.

Indexed as

ElectroencephalographyHumansNeurophysiologyPhotic StimulationSpatial Processing

Identifiers

PMID30867527
PMCPMC6416322

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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.