6533b859fe1ef96bd12b6f3b

RESEARCH PRODUCT

Genetic and Environmental Influences on the Relationship Between Aggression and Hyperactivity-impulsivity as Rated by Teachers and Parents

Jaakko KaprioLea PulkkinenElina VierikkoRichard J. Rose

subject

MaleParents050103 clinical psychologyGenotypeTwinsChild BehaviorBivariate analysisStructural equation modelingDevelopmental psychologyCorrelationSex FactorsSurveys and QuestionnairesGenetic variationTwins DizygoticmedicineHumans0501 psychology and cognitive sciencesLongitudinal StudiesSiblingHyperactivity impulsivityFinlandGenetics (clinical)Aggression4. Education05 social sciencesGenetic VariationObstetrics and GynecologyTwins MonozygoticFacultyPhenotypeChild PreschoolPediatrics Perinatology and Child HealthFemalemedicine.symptomPsychologySocial psychologyHealth habits050104 developmental & child psychology

description

This study examined genetic and environmental contributions to the covariance between aggression and hyperactivity-impulsivity as rated by twins' teachers and parents. Sex-differences in these genetic and environmental contributions and rater bias/sibling interaction effects were of interest as well. Part of an ongoing nation-wide twin-family study of behavioral development and health habits, the sample consisted of 1636 Finnish twin pairs ascertained from five consecutive and complete twin birth cohorts. Data were collected at ages 11-12, using teacher and parental rating forms of the Multidimensional Peer Nomination Inventory. Bivariate analyses were performed using structural equation modeling allowing sex-limitation effects. Results show that, in addition to significant genetic and environmental influences specific to each behavior, aggression and hyperactivity-impulsivity share common genetic and environmental etiology. Results provide evidence that both genetic and environmental factors are important in creating the observed correlation between aggression and hyperactivity-impulsivity.

https://doi.org/10.1375/136905204774200541