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Title: Genetic and environmental causes of individual differences in daily life positive affect and reward experience and its overlap with stress-sensitivity
Authors: Menne-Lothmann, Claudia ×
Jacobs, Nele
Derom, Cathérine
Thiery, Evert
van Os, Jim
Wichers, Marieke #
Issue Date: Sep-2012
Publisher: Kluwer Academic/Plenum Publishers
Series Title: Behavior Genetics vol:42 issue:5 pages:778-86
Abstract: Momentary positive affect (PA) and reward experience may underlie subjective wellbeing, and index mental health resilience. This study examines their underlying sources of variation and the covariation with stress-sensitivity. The experience sampling method was used to collect multiple appraisals of mood and daily life events in 520 female twins. Structural equation model fitting was employed to determine sources of variation of PA, reward experience, and the association between reward experience and stress-sensitivity. PA was best explained by shared and non-shared environmental factors, and reward experience by non-shared environmental factors only, although the evidence was also suggestive of a small genetic contribution. Reward experience and stress-sensitivity showed no association. PA was not heritable. Most-if not all-variance of reward experience was explained by environmental influences. Stress-sensitivity, indexing depression vulnerability, and reward experience were non-overlapping, suggesting that resilience traits are independent from stress-sensitivity levels in a general population sample.
URI: 
ISSN: 0001-8244
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Department of Human Genetics - miscellaneous
Clinical Genetics
× corresponding author
# (joint) last author

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