Evidence map›Paper›PMID 28634439›Full record

ArticleFrontiers in neuroscience2017

Inconsistency in Abnormal Brain Activity across Cohorts of ADHD-200 in Children with Attention Deficit Hyperactivity Disorder.

Jian-Bao Wang, Li-Jun Zheng, Qing-Jiu Cao, Yu-Feng Wang, Li Sun, Yu-Feng Zang, Hang Zhang

Open access · goldAbstract read
In one paragraph

Article in Frontiers in neuroscience, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 2 pooled it
2.8field-weighted citation impact, top 9% 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

23 citing papers in PubMed, 2 syntheses or guidelines pooled it, 46 citations in OpenAlex.

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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

7 authors at 5 institutions in 1 country.

Jian-Bao WangCenter for Cognition and Brain Disorders and the Affiliated Hospital, Hangzhou Normal UniversityHangzhou, China.
Li-Jun ZhengCenter for Cognition and Brain Disorders and the Affiliated Hospital, Hangzhou Normal UniversityHangzhou, China.
Qing-Jiu CaoInstitute of Mental Health, The Sixth Hospital, Peking UniversityBeijing, China.
Yu-Feng WangInstitute of Mental Health, The Sixth Hospital, Peking UniversityBeijing, China.
Li SunInstitute of Mental Health, The Sixth Hospital, Peking UniversityBeijing, China.
Yu-Feng ZangCenter for Cognition and Brain Disorders and the Affiliated Hospital, Hangzhou Normal UniversityHangzhou, China.
Hang ZhangPaul C. Lauterbur Research Centers for Biomedical Imaging, Shenzhen Institutes of Advanced Technology, Chinese Academy of SciencesShenzhen, China.
Hangzhou Normal University · CNPeking University Sixth Hospital · CNAffiliated Hospital of Hangzhou Normal University · CNPeking University · CNShenzhen Institutes of Advanced Technology · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Many papers have shown results from the multi-site dataset of resting-state fMRI (rs-fMRI) in attention deficit hyperactivity disorder (ADHD), a data-sharing project named ADHD-200. However, few studies have illustrated that to what extent the pooled findings were consistent across cohorts. The present study analyzed three voxel-wise whole-brain metrics, i.e., amplitude of low-frequency fluctuation (ALFF), regional homogeneity (ReHo), and degree centrality (DC) based on the pooled dataset as well as individual cohort of ADHD-200. In addition to the conventional frequency band of 0.01-0.08 Hz, sub-frequency bands of 0-0.01, 0.01-0.027, 0.027-0.073, 0.073-0.198, and 0.198-0.25 Hz, were assessed. While the pooled dataset showed abnormal activity in some brain regions, e.g., the bilateral sensorimotor cortices, bilateral cerebellum, and the bilateral lingual gyrus, these results were highly inconsistent across cohorts, even across the three cohorts from the same research center. The standardized effect size was rather small. These findings suggested a high heterogeneity of spontaneous brain activity in ADHD. Future studies based on multi-site large-sample dataset should be performed on pooled data and single cohort data, respectively and the effect size must be shown.

Indexed as

ADHD-200attention deficit hyperactivity disordermulti-site datasetresting state fMRIvoxel-wise whole-brain analysis

Identifiers

PMID28634439
PMCPMC5459906
OpenAlexW2624626550

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.