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ERIC Number: EJ926707
Record Type: Journal
Publication Date: 2011-Jul
Pages: 10
Abstractor: As Provided
Reference Count: 45
ISSN: ISSN-0091-0627
A Longitudinal Twin Study on the Association between Inattentive and Hyperactive-Impulsive ADHD Symptoms
Greven, Corina U.; Asherson, Philip; Rijsdijk, Fruhling V.; Plomin, Robert
Journal of Abnormal Child Psychology, v39 n5 p623-632 Jul 2011
DSM-IV distinguishes two symptom domains of attention deficit hyperactivity disorder (ADHD): inattentiveness and hyperactivity-impulsivity. The present study examines the aetiologies and developmental relations underlying the associations between inattentiveness and hyperactivity-impulsivity over time, based on a representative population sample from the United Kingdom of approximately 7,000 twin pairs. ADHD symptoms were assessed as continuous dimensions using the DSM-IV items from the Conners' Parent Rating Scale at two ages: middle childhood (age 1) and early adolescence (age 2). Quantitative genetic cross-lagged analyses showed that the association of the ADHD dimensions over time is influenced by stable as well as newly developing genetic factors. Moreover the longitudinal relationship between the ADHD dimensions appears to be unidirectional, with hyperactivity-impulsivity in middle childhood predicting the presence of inattentiveness in early adolescence, but not vice versa. Thus, hyperactivity-impulsivity may serve to exacerbate inattentiveness over time. Findings are discussed in the context of developmental changes in ADHD symptoms.
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A