Evidence map›Paper›PMID 20410729›Full record

ArticleJournal of the American Academy of Child and Adolescent Psychiatry2010

Familial clustering and DRD4 effects on electroencephalogram measures in multiplex families with attention deficit/hyperactivity disorder.

Sandra K Loo, Sigi T Hale, Grant Hanada, James Macion, Anshu Shrestha, James J McGough, James T McCracken, Stanley Nelson, Susan L Smalley

Abstract read
In one paragraph

Article in Journal of the American Academy of Child and Adolescent Psychiatry, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 3 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

27 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Pooled it
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  14. Parsing heterogeneity in attention-deficit hyperactivity disorder using EEG-based subgroups.Journal of child psychology and psychiatry, and allied disciplines · 2018
    Article
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  18. Research Review: Use of EEG biomarkers in child psychiatry research - current state and future directions.Journal of child psychology and psychiatry, and allied disciplines · 2016
    Review
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  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

9 authors.

Sandra K LooSemel Institute for Neuroscience and Human Behavior and David Geffen School of Medicine at the University of California, Los Angeles, CA 90095, USA. sloo@mednet.ucla.edu
Sigi T Hale
Grant Hanada
James Macion
Anshu Shrestha
James J McGough
James T McCracken
Stanley Nelson
Susan L Smalley

Funding

DETECTION OF SUSCEPTIBILITY GENES IN ADHDR01MH058277 · NIMH · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI SMALLEY, SUSAN L · 1998 to 2008
$4.6M
Genetics of EEG Patterns in ADHDR01NS054124 · NINDS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI LOO, SANDRA K · 2006 to 2010
$1.7M
NIMH NIH HHS MH058277NIMH NIH HHS R01 MH058277NINDS NIH HHS NS054124NINDS NIH HHS R01 NS054124ODCDC CDC HHS CD40275
6 · The paper itself

Abstract

objectiveThe current study tests electroencephalogram (EEG) measures as a potential endophenotype for attention deficit/hyperactivity disorder (ADHD) by examining sibling and parent-offspring similarity, familial clustering with the disorder, and association with the dopamine receptor D4 (DRD4) candidate gene.

methodThe sample consists of 531 participants (191 parents and 340 children) from 132 multiplex families with ADHD who participated in a larger genetics study. All members of the families underwent extensive assessment including semi-structured diagnostic interviews and EEG recording.

resultsStrong sibling similarity and parent-offspring correlations in EEG power emerged, suggesting high trait heritability. Increased theta power was observed among children with ADHD when compared with unaffected children, and there were no differences according to ADHD subtype. Within the parent sample, ADHD diagnostic status and ADHD subtype group differences emerged in the theta, alpha, and beta frequency bands. DRD4 effects for both parents and children were apparent in the beta frequency band and for children only in the theta frequency band.

conclusionsThis study suggests that EEG measures are a promising avenue of study in the search for putative endophenotypes for ADHD, and that variability at the DRD4 gene may contribute to this endophenotype.

Indexed as

Attention Deficit Disorder with HyperactivityAdultAlpha RhythmBeta RhythmChildHeredityHumansInterviews as TopicParentsReceptors, Dopamine D4SiblingsTheta RhythmDRD4 protein, humanReceptors, Dopamine D4

Identifiers

PMID20410729
PMCPMC2919766

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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.