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Hyperactivity And Academic Achievement Could Be Linked By Genetics

Date:
May 17, 2007
Source:
Society for Research in Child Development
Summary:
New research shows that the existence of overactivity, impulsivity and inattentiveness in children who also exhibit poor achievement in math, reading, and language may be due to shared genetic influences. The research was based on 2,000 7-year-old pairs of twins that are part of the UK-based "Twins Early Development Study." The existence of substantial overlap between hyperactivity and achievement has important implications for future research about genes associated with both behaviors.
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Children who are hyperactive tend to do worse academically than their peers who are not hyperactive. Although the relationship between such behaviors as overactivity, impulsivity, and inattentiveness in children and poor achievement in math, reading, language, and other areas has been well documented, little is known about the reasons for this link. New research shows that the tie may be due to genetic influences.

The study, conducted by researchers at Boston University and at the Social Genetic and Developmental Psychiatry Centre, Institute of Psychiatry in London, appears in the May/June 2007 issue of the journal Child Development. The researchers examined the extent to which common genetic and environmental factors operate across hyperactivity and achievement in nearly 2,000 7-year-old pairs of twins taking part in the U.K.-based Twins Early Development Study. In the study, both parents and teachers provided ratings of twins' hyperactive behavior problems (e.g., restlessness, fidgeting, distractibility, impulsivity, and attention span). Academic achievement was based on teacher assessments of English and mathematics skills conducted at the end of the first year of primary school (equivalent to first grade in the United States).

Based on the study's results, the researchers concluded that hyperactive behavior and poor academic achievement are linked primarily because of common genetic influences. They posited two possibilities for how this could happen: It could be that some of the genes that influence hyperactivity also influence academic achievement. Or it could be an indirect relationship, as a result of genes influencing one behavior, which, in turn, influences another; for example, it may be that behaviors associated with hyperactivity may make it harder for children to learn in the classroom.

"Whatever the mechanism responsible, the finding of substantial genetic overlap between hyperactivity and achievement has important implications for research searching for genes associated with the two behaviors," according to Kimberly J. Saudino, associate professor of psychology at Boston University and the study's lead author.

The study was supported, in part, by the National Institute of Mental Health.

Summarized from Child Development, Vol. 78, Issue 3, Why Are Hyperactivity and Academic Achievement Related" by Saudino, KH (Boston University), and Plomin, R (Social Genetic and Developmental Psychiatry Centre, Institute of Psychiatry). 


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The above post is reprinted from materials provided by Society for Research in Child Development. Note: Materials may be edited for content and length.


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Society for Research in Child Development. "Hyperactivity And Academic Achievement Could Be Linked By Genetics." ScienceDaily. ScienceDaily, 17 May 2007. <www.sciencedaily.com/releases/2007/05/070517063103.htm>.
Society for Research in Child Development. (2007, May 17). Hyperactivity And Academic Achievement Could Be Linked By Genetics. ScienceDaily. Retrieved August 29, 2015 from www.sciencedaily.com/releases/2007/05/070517063103.htm
Society for Research in Child Development. "Hyperactivity And Academic Achievement Could Be Linked By Genetics." ScienceDaily. www.sciencedaily.com/releases/2007/05/070517063103.htm (accessed August 29, 2015).

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