Evidence map›Paper›PMID 20814254›Full record

ReviewJournal of developmental and behavioral pediatrics : JDBP2010

Understanding the complex etiologies of developmental disorders: behavioral and molecular genetic approaches.

Erik G Willcutt, Bruce F Pennington, Laramie Duncan, Shelley D Smith, Janice M Keenan, Sally Wadsworth, John C Defries, Richard K Olson

Abstract readReview
In one paragraph

Review in Journal of developmental and behavioral pediatrics : JDBP, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
50citing 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

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

  1. Pooled it
  2. Pooled it
  3. The Impact of Intensive Reading Intervention on Level of Attention in Middle School Students.Journal of clinical child and adolescent psychology : the official journal for the Society of Clinical Child and Adolescent Psychology, American Psychological Association, Division 53 · 2015
    Trial
  4. Article
  5. Translating the Power of Precision Medicine Into the World of Communication Disorders.Journal of speech, language, and hearing research : JSLHR · 2025
    Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Is executive dysfunction a potential contributor to the comorbidity between basic reading disability and attention-deficit/hyperactivity disorder?Child neuropsychology : a journal on normal and abnormal development in childhood and adolescence · 2021
    Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. Behavior and Molecular Genetic Approaches to Comorbidity.Current developmental disorders reports · 2019
    Article
  20. Understanding Comorbidity Between Specific Learning Disabilities.New directions for child and adolescent development · 2019
    Review
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

8 authors.

Erik G WillcuttDepartment of Psychology and Neuroscience, University of Colorado at Boulder, Boulder, CO 80309, USA. willcutt@colorado.edu
Bruce F Pennington
Laramie Duncan
Shelley D Smith
Janice M Keenan
Sally Wadsworth
John C Defries
Richard K Olson

Funding

VALIDITY OF SUBTYPES OF ADHDP50HD027802 · NICHD · UNIVERSITY OF COLORADO AT BOULDER · PI ERIK G WILLCUTT · 1990 to 2026
$44.9M
Proj 5: Early Development (224-250)P50MH079485 · NIMH · UNIVERSITY OF COLORADO · PI O'REILLY, RANDALL CHARLES · 2008 to 2012
$8.7M
Neural Substrates of Executive Function: An fMRI Twin StudyR01MH063207 · NIMH · UNIVERSITY OF COLORADO AT BOULDER · PI FRIEDMAN, NAOMI P. · 2001 to 2018
$6.5M
Longitudinal Twin Study of Early Reading Development (supplement)R01HD038526 · NICHD · UNIVERSITY OF COLORADO AT BOULDER · PI OLSON, RICHARD K · 2000 to 2010
$4.2M
RESEARCH TRAINING: DEVELOPMENTAL BEHAVIORAL GENETICST32HD007289 · NICHD · UNIVERSITY OF COLORADO AT BOULDER · PI STALLINGS, MICHAEL CRAIG · 1985 to 2014
$3.1M
Etiology and Neuropsychology of Math, Reading, ADHD, and their CovariationR01HD068728 · NICHD · UNIVERSITY OF COLORADO · PI PETRILL, STEPHEN A., WILLCUTT, ERIK G · 2011 to 2015
$3.0M
Etiology of Reading Disabilities and Comorbid ADHDR01HD047264 · NICHD · UNIVERSITY OF COLORADO AT BOULDER · PI WILLCUTT, ERIK G · 2005 to 2009
$2.7M
Multilevel Analysis of Self-regulation and Substance AbuseR01DA024002 · NIDA · UNIVERSITY OF COLORADO · PI ITO, TIFFANY A · 2009 to 2013
$2.6M
The Linguistic Phenotype in Familial DyslexiaR01HD049027 · NICHD · UNIVERSITY OF DENVER (COLORADO SEMINARY) · PI PENNINGTON, BRUCE F · 2005 to 2009
$2.4M
Validity of DSM-IV ADHD Subtypes in a Community SampleR01MH063941 · NIMH · UNIVERSITY OF COLORADO AT BOULDER · PI WILLCUTT, ERIK G · 2001 to 2005
$1.7M
Brain Mapping and Genetics of Executive Function in ADHDR01MH070037 · NIMH · UNIVERSITY OF COLORADO AT BOULDER · PI BANICH, MARIE T · 2004 to 2008
$1.6M
DSM-IV ADHD IN AN ETHNICALLY DIVERSE COMMUNITY SAMPLER01MH062120 · NIMH · UNIVERSITY OF COLORADO AT BOULDER · PI WILLCUTT, ERIK G · 2000 to 2004
$1.6M
NICHD NIH HHS P50 HD027802NICHD NIH HHS P50 HD 27802NICHD NIH HHS R01 HD038526NICHD NIH HHS R01 HD047264NICHD NIH HHS R01 HD049027NICHD NIH HHS R01 HD068728NICHD NIH HHS R01 HD 38526NICHD NIH HHS R01 HD 47264NICHD NIH HHS R0 HD 49027NICHD NIH HHS T32 HD007289NICHD NIH HHS T32 HD 07289NIDA NIH HHS R01 DA024002NIDA NIH HHS R01 DA 24002NIDCD NIH HHS L40 DC006502NIDCD NIH HHS R01 DC005190NIDCD NIH HHS R01 DC 05190NIMH NIH HHS P50 MH079485NIMH NIH HHS P50 MH 79485NIMH NIH HHS R01 MH062120NIMH NIH HHS R01 MH063207NIMH NIH HHS R01 MH063941NIMH NIH HHS R01 MH070037NIMH NIH HHS R01 MH 63207NIMH NIH HHS R01 MH 70037
6 · The paper itself

Abstract

objectiveThis article has 2 primary goals. First, a brief tutorial on behavioral and molecular genetic methods is provided for readers without extensive training in these areas. To illustrate the application of these approaches to developmental disorders, etiologically informative studies of reading disability (RD), math disability (MD), and attention-deficit hyperactivity disorder (ADHD) are then reviewed. Implications of the results for these specific disorders and for developmental disabilities as a whole are discussed, and novel directions for future research are highlighted.

methodPrevious family and twin studies of RD, MD, and ADHD are reviewed systematically, and the extensive molecular genetic literatures on each disorder are summarized. To illustrate 4 novel extensions of these etiologically informative approaches, new data are presented from the Colorado Learning Disabilities Research Center, an ongoing twin study of the etiology of RD, ADHD, MD, and related disorders.

conclusionsRD, MD, and ADHD are familial and heritable, and co-occur more frequently than expected by chance. Molecular genetic studies suggest that all 3 disorders have complex etiologies, with multiple genetic and environmental risk factors each contributing to overall risk for each disorder. Neuropsychological analyses indicate that the 3 disorders are each associated with multiple neuropsychological weaknesses, and initial evidence suggests that comorbidity between the 3 disorders is due to common genetic risk factors that lead to slow processing speed.

Indexed as

Attention Deficit Disorder with HyperactivityChildChild BehaviorComorbidityDevelopmental DisabilitiesDyslexiaFamilyGenetic Predisposition to DiseaseHumansLearning DisabilitiesMathematicsRisk FactorsSocial Environment

Identifiers

PMID20814254
PMCPMC2953861

What OpenQuestion holds

Textmetadata
LicenceTDM
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.