Navigation Links
Low grades in adolescence linked to dopamine genes
Date:9/2/2010

The academic performance of adolescents will suffer in at least one of four key subjects English, math, science, history if their DNA contains one or more of three specific dopamine gene variations, according to a study led by renowned biosocial criminologist Kevin M. Beaver of The Florida State University.

The research sheds new light on the genetic components of academic performance during middle and high school, and on the interplay of specific genes and environmental factors such as peer behavior or school conditions.

"We believe that dopaminergic genes affect GPA because they have previously been linked to factors associated with academic performance, including adolescent delinquency, working memory, intelligence and cognitive abilities, and ADHD, among others," Beaver said. "So, the genetic effect would operate indirectly via these other correlates to GPA and school performance."

Findings from the study are described in a paper for which Beaver served as lead author that was published online Aug. 30 in the journal Intelligence. He and his coauthors performed their groundbreaking analysis using DNA and lifestyle data from a representative group of 2,500 U.S. middle- and high-school students who were tracked from 1994 to 2008 in the National Longitudinal Study of Adolescent Health.

"We found that as the number of certain dopaminergic gene variants increased, grade point averages decreased, and the difference was statistically significant," Beaver said. "For example, the GPA of a student with specific variants of three dopaminergic genes might be around 2.8, versus a GPA of around 3.3 without the variants. That could mean the difference between being accepted into a college versus being rejected.

"Unfortunately, we know that students with lower GPAs are generally more likely to participate in antisocial or criminal activities, and less likely to attend college and earn comparatively higher salaries as a result."

The researchers also uncovered a correlation between the variants of dopamine genes that a student possessed and his or her GPA in different subject areas.

For instance, they found a marginally significant negative effect on English grades for students with a single dopamine variant in a gene known as DAT1, but no apparent effect on math, history or science. In contrast, a variant in the DRD2 gene was correlated with a markedly negative effect on grades in all four subjects. Students with a single, DRD4 variant had significantly lower grades in English and math, but only marginally lower grades in history and science.

Previous, cutting-edge genetic research in biosocial criminology has revealed the mutual interdependence of genes and environment which means, said Beaver, that certain genetic factors may wield tangible effects when paired with certain environmental factors.

"It is quite likely that a similar feedback loop exists with GPA, whereby the genetic liability for low GPA could be moderated by environmental conditions such as school structural characteristics, teacher performance, or behavior of other students," he said.

"If that is true, then findings such as ours could help lead to more effective, innovative ways of enhancing school and individual performance."


'/>"/>

Contact: Kevin Beaver
kbeaver@fsu.edu
850-644-9180
Florida State University
Source:Eurekalert  

Related biology news :

1. Common soil mineral degrades the nearly indestructible prion
2. Rapid growth in adolescence leads to fewer offspring, UC Riverside biologists find
3. High-fat diet during puberty linked to breast cancer risk later in life
4. Girls early puberty linked to unstable environment via insecure attachment in infancy
5. Fertilizer chemicals linked to animal developmental woes
6. USDA-backed study finds federal school lunches linked to childhood obesity
7. UCLA study identifies genetic variation linked to lupus in Asian men
8. Prenatal exposure to pesticides linked to attention problems
9. Gallbladder cancer may be linked to estrogens, says UH team
10. Arsenic in field runoff linked to poultry litter
11. Immune responses during pregnancy linked to schizophrenia among offspring
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Low grades in adolescence linked to dopamine genes
(Date:6/20/2016)... DALLAS , June 20, 2016 ... criminal justice technology solutions for public safety, investigation, ... by the prisons involved, it has secured the ... Corrections (DOC) facilities for Managed Access Systems (MAS) ... (4) additional facilities to be installed by October, ...
(Date:6/9/2016)... June 9, 2016  Perkotek an innovation leader in attendance control systems is proud ... work hours, for employers to make sure the right employees are actually signing in, ... ... ... ...
(Date:6/3/2016)... Das DOTM (Department ... hat ein 44 Millionen $-Projekt ... einschließlich Personalisierung, Registrierung und IT-Infrastruktur, an Decatur ... Implementierung von Identitätsmanagementlösungen. Zahlreiche renommierte internationale Anbieter ... aber Decatur wurde als konformste und innovativste ...
Breaking Biology News(10 mins):
(Date:12/2/2016)... 2, 2016 CytRx Corporation (NASDAQ: ... in oncology, today announced the appointment of Earl ... consultant, and private healthcare investor, to its Board of ... with clinical and strategic experience at the highest level," ... CEO. "As one of the world,s leading orthopedic surgeons, ...
(Date:12/2/2016)... ... December 01, 2016 , ... Aerocom Healthcare ( ... hospitals, will present its chain-of-custody solution for tracking and securing medications at booth ... Dec. 4-8, 2016. , Aerocom has a proven solution for tracking medications via ...
(Date:12/2/2016)... ... December 01, 2016 , ... ... Nanowear on their recent FDA Class II 510(k) clearance for their flagship medical ... in commercializing remote cardiac monitoring devices that rely on cloth-based nanosensors. While other ...
(Date:12/2/2016)... The immunohistochemistry (IHC) market is projected ... of 7.3% during the forecast period of 2016 to 2021 dominated ... accounted for the largest share of immunohistochemistry (IHC) market, by end ... , , ... market spread across 225 pages, profiling 10 companies and supported with ...
Breaking Biology Technology: