title: Genetic and Environmental Influences on Rumination, Distraction, and Depressed Mood in Adolescence.
abstract: Rumination is an established cognitive vulnerability for depression. Despite substantial work on the environmental origins of rumination, the heritability of rumination has not been examined and it is not known whether rumination accounts for some of the genetic vulnerability associated with depression. 756 adolescent twins ages 12-14 years completed the Response Styles Questionnaire and multiple measures of depressive symptoms. Brooding correlated positively and distraction correlated negatively with concurrent depressive symptoms. Estimated heritabilites were 54% for depression, 21% for brooding, 37% for reflection, and 30% for distraction. Bivariate genetic analyses suggested that (1) individual differences in distraction share both genetic and environmental sources of variation with depression; and (2) although the heritable influences on brooding are small, these heritable influences account for the majority of the relationship between brooding and depression (h2= .62).
authors: Department of Psychology, University of Wisconsin-Madison.
authors: Mollie N
authors: MN
authors: Moore
authors: Rachel H
authors: RH
authors: Salk
authors: Carol A
authors: CA
authors: Van Hulle
authors: Lyn Y
authors: LY
authors: Abramson
authors: Janet S
authors: JS
authors: Hyde
authors: Kathryn
authors: K
authors: Lemery-Chalfant
authors: H Hill
authors: HH
authors: Goldsmith
keywords: Rumination; behavioral genetics; depression; distraction; response styles; twins
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