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Genes may play role in educational achievement, study finds
Date:7/2/2012

e findings.

Dopamine transporter genes assist in the production of proteins that regulate levels of the neurotransmitter dopamine in the brain, while dopamine receptor genes are involved in neurotransmission. Previous research has shown that dopamine levels play a role in regulating impulsive behavior, attention and intelligence.

The presence of the alleles alone did not guarantee higher levels of education, the study found. Having a lower IQ was more strongly associated with lower levels of education. Also, living in poverty and essentially "running with a bad crowd" resulted in lower levels of education despite the genetic effects.

Even though the genetic variants were found to be associated with educational levels, having a specific allele does not determine whether someone will graduate from high school or earn a college degree, according to Beaver. Rather, these genes work in a probabilistic way, with the presence of certain alleles simply increasing or decreasing the likelihood of educational outcomes, he said. "No one gene is going to say, 'Sally will graduate from high school' or 'Johnny will earn a college degree,'" he said. "These genetic effects operate indirectly, through memory, violent tendencies and impulsivity, which are all known predictors of how well a kid will succeed in school. If we can keep moving forward and identify more genetic markers for educational achievement, we can begin to truly understand how genetics play a role in how we live and succeed in life."


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Contact: Audrey Hamilton
ahamilton@apa.org
202-336-5706
American Psychological Association
Source:Eurekalert

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