Evidence map›Paper›PMID 23346160›Full record

ArticleJournal of clinical neurology (Seoul, Korea)2013

Reduced Frontal P3a Amplitude in Migraine Patients during the Pain-Free Period.

Yong Seo Koo, Deokwon Ko, Gwan-Taek Lee, Kyungmi Oh, Myung-Sun Kim, Kyung Hwan Kim, Chang-Hwan Im, Ki-Young Jung

Erratum issuedOpen access · diamondAbstract read
In one paragraph

Article in Journal of clinical neurology (Seoul, Korea), 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.4field-weighted citation impact, top 36% of its field
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

4 citing papers in PubMed, 11 citations in OpenAlex.

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4 · The record

Corrections and comments

  • Erratum issued
5 · Who and what money

Authors and funding

8 authors at 4 institutions in 1 country.

Yong Seo KooDepartment of Neurology, Korea University Medical Center, Korea University College of Medicine, Seoul, Korea. ; Department of Neurology, Jeju Medical Center of Jeju Special Self-Governing Province, Jeju, Korea.
Deokwon Ko
Gwan-Taek Lee
Kyungmi Oh
Myung-Sun Kim
Kyung Hwan Kim
Chang-Hwan Im
Ki-Young Jung
Korea University Medical Center · KRHanyang University · KRSungshin Women's University · KRYonsei University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

background and purposeNeuropsychological and neuroimaging studies both suggest that frontal lobe dysfunction is present in migraineurs. Since P3a abnormalities manifest in other diseases associated with attention problems, such as attention deficit hyperactivity disorder, we hypothesized that migraine patients have P3a abnormalities, particularly in the frontal region.

methodsEvent-related potentials were measured using a passive auditory oddball paradigm in 16 female migraineurs (aged 22.9±2.0 years, mean±SD) during the interictal period and in 16 age-matched healthy females (22.6±2.0 years). The amplitudes and latencies were analyzed independently using repeated-measures analysis of variance. Nonparametric statistical testing using a cluster-level randomization method was performed to localize the abnormalities.

resultsThe mean P3a amplitude at frontal areas during the third trials was significantly lower in migraineurs (1.06 µV) than in controls (1.69 µV, p=0.026). P3a amplitudes were negatively correlated with the duration of the migraine history (r=-0.618, p=0.014). Cluster-based nonparametric statistical analysis showed that the amplitudes over left frontal areas were significantly lower in migraine patients than in controls.

conclusionsA reduced P3a amplitude of migraineurs reflects attentional deficits and frontal dysfunction. The negative correlation between P3a amplitude and the duration of the migraine history suggests that attentional deficits and frontal dysfunction are either the cause or the result of headache.

Indexed as

attentioncognitive functionevent-related potentialsfrontalmigraineP3a

Identifiers

PMID23346160
PMCPMC3543909
OpenAlexW2086018846

What OpenQuestion holds

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LicenceCC BY-NC
Read underepoch 390

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.