Genetic and environmental influences on optimism and its relationship to mental and self-rated health: A study of aging twins

Mosing, Miriam A., Zietsch, Brendan P., Shekar, Sri N., Wright, Margaret J. and Martin, Nicholas G. (2009) Genetic and environmental influences on optimism and its relationship to mental and self-rated health: A study of aging twins. Behavior Genetics, 39 6: 597-604. doi:10.1007/s10519-009-9287-7


Author Mosing, Miriam A.
Zietsch, Brendan P.
Shekar, Sri N.
Wright, Margaret J.
Martin, Nicholas G.
Title Genetic and environmental influences on optimism and its relationship to mental and self-rated health: A study of aging twins
Journal name Behavior Genetics   Check publisher's open access policy
ISSN 0001-8244
1573-3297
Publication date 2009-11
Sub-type Article (original research)
DOI 10.1007/s10519-009-9287-7
Volume 39
Issue 6
Start page 597
End page 604
Total pages 8
Editor John K. Hewitt
Place of publication New York, NY, United States
Publisher Springer
Collection year 2010
Language eng
Subject C1
0604 Genetics
1701 Psychology
970117 Expanding Knowledge in Psychology and Cognitive Sciences
Formatted abstract
Optimism has been shown to be important in maintaining wellbeing into old age, but little is known about the sources of variation in optimism and its links to mental and somatic health. Optimism, mental, and self-rated health were measured in 3,053 twin individuals (501 MZF, 153 MZM, 274 DZF, 77 DZM, and 242 DZ opposite-sex twin pairs and 561 single twins) over 50 years using the life orientation test, the General Health Questionnaire and a single-item question for self-rated health. Additive genetic factors explained 36, 34, and 46% of the variation in optimism, mental, and self-rated health, respectively, with the remainder being due to non-shared environmental influences. Genetic influences accounted for most of the covariance between the variables (14–20% of the genetic variance) indicating that in older adults genes predisposing to high optimism also predispose to good mental health and self-rated health.
Keyword Optimism
Mental health
Somatic health
Aging
Twin design
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2010 Higher Education Research Data Collection
ERA 2012 Admin Only
School of Psychology Publications
 
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Created: Sun, 03 Jan 2010, 00:04:59 EST