Evidence map›Paper›PMID 22118296›Full record

ArticleJournal of child psychology and psychiatry, and allied disciplines2012

Shared genetic influences on ADHD symptoms and very low-frequency EEG activity: a twin study.

Charlotte Tye, Frühling Rijsdijk, Corina U Greven, Jonna Kuntsi, Philip Asherson, Gráinne McLoughlin

Abstract readTwin Study
In one paragraph

Article in Journal of child psychology and psychiatry, and allied disciplines, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing 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.

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3 · Its place in the literature

Who cites it

16 citing papers in PubMed.

  1. Article
  2. What Has Been Learned from Using EEG Methods in Research of ADHD?Current topics in behavioral neurosciences · 2022
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  3. Review
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  13. The aetiological association between the dynamics of cortisol productivity and ADHD.Journal of neural transmission (Vienna, Austria : 1996) · 2016
    Article
  14. Cognitive and neurophysiological markers of ADHD persistence and remission.The British journal of psychiatry : the journal of mental science · 2016
    Article
  15. Review
  16. 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

6 authors.

Charlotte TyeMRC Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, King's College London, De Crespigny Park, London, UK. charlotte.tye@kcl.ac.uk
Frühling Rijsdijk
Corina U Greven
Jonna Kuntsi
Philip Asherson
Gráinne McLoughlin

Funding

Medical Research Council G9817803
6 · The paper itself

Abstract

backgroundAttention deficit hyperactivity disorder (ADHD) is a common and highly heritable neurodevelopmental disorder with a complex aetiology. The identification of candidate intermediate phenotypes that are both heritable and genetically linked to ADHD may facilitate the detection of susceptibility genes and elucidate aetiological pathways. Very low-frequency (VLF; <0.5 Hz) electroencephalographic (EEG) activity represents a promising indicator of risk for ADHD, but it currently remains unclear as to whether it is heritable or genetically linked to the disorder.

methodsDirect-current (DC)-EEG was recorded during a cognitive activation condition in 30 monozygotic and dizygotic adolescent twin pairs concordant or discordant for high ADHD symptom scores, and 37 monozygotic and dizygotic matched-control twin pairs with low ADHD symptom scores. Structural equation modelling was used to quantify the genetic and environmental contributions to the phenotypic covariance between ADHD and VLF activity.

resultsAttention deficit hyperactivity disorder was significantly associated with reduced VLF power during cognitive activation, which suggests reduced synchronization of widespread neuronal activity. Very low-frequency power demonstrated modest heritability (0.31), and the genetic correlation (-0.80) indicated a substantial degree of overlap in genetic influences on ADHD and VLF activity.

conclusionsAltered VLF activity is a potential candidate intermediate phenotype of ADHD, which warrants further investigation of underlying neurobiological and genetic mechanisms.

Indexed as

ElectroencephalographyEndophenotypesAdolescentAttention Deficit Disorder with HyperactivityDiseases in TwinsEnglandGene-Environment InteractionHumansMaleModels, GeneticRegression AnalysisWales

Identifiers

PMID22118296
PMCPMC3859923

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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.