Evidence map›Paper›PMID 25581343›Full record

ArticleJournal of child psychology and psychiatry, and allied disciplines2015

White matter microstructure and developmental improvement of hyperactive/impulsive symptoms in attention-deficit/hyperactivity disorder.

Winke Francx, Marcel P Zwiers, Maarten Mennes, Jaap Oosterlaan, Dirk Heslenfeld, Pieter J Hoekstra, Catharina A Hartman, Barbara Franke, Stephen V Faraone, Laurence O'Dwyer and 1 more

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In one paragraph

Article in Journal of child psychology and psychiatry, and allied disciplines, 2015. 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 28 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 2 pooled it
–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

28 citing papers in PubMed, 2 syntheses or guidelines pooled it.

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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

11 authors.

Winke FrancxDepartment of Cognitive Neuroscience, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Centre, Nijmegen, The Netherlands.
Marcel P ZwiersDepartment of Cognitive Neuroscience, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Centre, Nijmegen, The Netherlands.
Maarten MennesDepartment of Cognitive Neuroscience, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Centre, Nijmegen, The Netherlands.
Jaap OosterlaanDepartment of Clinical Neuropsychology, VU University Amsterdam, Amsterdam, The Netherlands.
Dirk HeslenfeldDepartment of Clinical Neuropsychology, VU University Amsterdam, Amsterdam, The Netherlands.
Pieter J HoekstraDepartment of Psychiatry, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.
Catharina A HartmanDepartment of Psychiatry, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.
Barbara FrankeDepartment of Cognitive Neuroscience, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Centre, Nijmegen, The Netherlands.
Stephen V FaraoneDepartments of Psychiatry and of Neuroscience and Physiology, SUNY Upstate Medical University, Syracuse, NY, USA.
Laurence O'DwyerDepartment of Cognitive Neuroscience, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Centre, Nijmegen, The Netherlands.
Jan K BuitelaarDepartment of Cognitive Neuroscience, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Centre, Nijmegen, The Netherlands.

Funding

International Multi-Center ADHD Genetics ProjectR01MH062873 · NIMH · UPSTATE MEDICAL UNIVERSITY · PI FARAONE, STEPHEN V · 2002 to 2007
$7.2M
NIMH NIH HHS R01 MH062873NIMH NIH HHS R01MH62873
6 · The paper itself

Abstract

backgroundA developmental improvement of symptoms in attention-deficit/hyperactivity disorder (ADHD) is frequently reported, but the underlying neurobiological substrate has not been identified. The aim of this study was to determine whether white matter microstructure is related to developmental improvement of ADHD symptoms.

methodsA cross-sectional magnetic resonance imaging (MRI) analysis was embedded in a prospective follow-up of an adolescent cohort of ADHD and control subjects (NeuroIMAGE). Mean age at baseline was 11.9 years, mean interval of follow-up was 5.9 years. About 75.3% of the original cohort was retained successfully. Data of 101 participants with ADHD combined type at baseline and 40 healthy controls were analysed. ADHD symptoms were measured with semistructured, investigator-based interviews and Conners' questionnaires, on the basis of DSM-IV criteria. Fractional anisotropy (FA) and mean diffusivity (MD) indices of white matter microstructure were measured using whole brain diffusion tensor imaging at follow-up only. In a dimensional analysis FA and MD were related to change in ADHD symptoms. To link this analysis to DSM-IV diagnoses, a post hoc categorical group analysis was conducted comparing participants with persistent (n = 59) versus remittent (n = 42) ADHD and controls.

resultsOver time, participants with ADHD showed improvement mainly in hyperactive/impulsive symptoms. This improvement was associated with lower FA and higher MD values in the left corticospinal tract at follow-up. Findings of the dimensional and the categorical analysis strongly converged. Changes in inattentive symptoms over time were minimal and not related to white matter microstructure.

conclusionsThe corticospinal tract is important in the control of voluntary movements, suggesting the importance of the motor system in the persistence of hyperactive/impulsive symptoms.

Indexed as

Attention Deficit Disorder with HyperactivityAdolescentAdolescent DevelopmentChildFollow-Up StudiesHumansImpulsive BehaviorMagnetic Resonance ImagingMalePsychomotor AgitationPyramidal TractsRemission, SpontaneousWhite MatterAttention-deficit/hyperactivity disorderdevelopmentdiffusion tensor imaginghyperactivity/impulsivityrecoverywhite matter

Identifiers

PMID25581343
PMCPMC4499023

What OpenQuestion holds

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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.