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- Neiderhiser, Jenae M., et al.
(författare)
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Genetic and Environmental Influences on Mothering of Adolescents: A Comparison of Two Samples
- 2004
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Ingår i: Developmental Psychology. - : American Psychological Association (APA). - 0012-1649 .- 1939-0599. ; 40:3, s. 335-351
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Tidskriftsartikel (refereegranskat)abstract
- This study examined 2 samples of adolescents and mothers using a child-based design (Nonshared Environment in Adolescent Development [NEAD] project, N = 395 families) and a parent-based design (Twin Moms [TM] project, N = 236 twin family pairs) to compare genetic and environmental influences on mothering. For both samples, the same measures of positivity, negativity, control, and monitoring were used. The use of matched child-based and parent-based samples enabled passive and nonpassive genotype-environment (GE) correlations to be approximated, providing information about process. Passive GE correlations were suggested for mother's positivity and monitoring. For mother's negativity and control, primarily nonpassive GE correlations were suggested. In several cases, both types of GE correlation were indicated. Finally, observer ratings of negativity and monitoring were influenced only by environmental factors.
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- Spotts, Erica L., et al.
(författare)
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Accounting for depressive symptoms in women: a twin study of associations with interpersonal relationships
- 2004
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Ingår i: Journal of Affective Disorders. - : Elsevier BV. - 1573-2517 .- 0165-0327. ; 82:1, s. 101-111
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- Background: This study examined how interpersonal relationships, specifically marital quality and adequacy of social support, are associated with depressive symptoms among women. Methods: A sample of 326 female monozygotic and dizygotic twin pairs and their spouses was drawn from the Swedish Twin Registry. Associations among the three variables were evaluated by comparing similarities among monozygotic and dizygotic female twin pairs. Results: Interpersonal relationships contributed between 18% and 31% of the variance for depressive symptoms in women. Associations among the three variables were accounted for by genetic influences when women's reports were used. Non-shared environmental influences were important for the association between marital quality and depressive symptoms when a combination of husband and wife reports of marital quality were used. Limitations: The data is cross-sectional and the generalizability of these findings to depressive symptoms in men or to individuals with major depression is not clear. Conclusions: These findings indicate important associations among marital quality, social support and depressive symptoms in women, which should be taken into consideration for prevention and intervention strategies targeting depression.
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- Spotts, Erica L., et al.
(författare)
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Genetic and Environmental Influences on Marital Relationships
- 2004
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Ingår i: Journal of Family Psychology. - : American Psychological Association (APA). - 0893-3200 .- 1939-1293. ; 18:1, s. 107-119
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- As most adults will marry at least once during their lifetime, studying marital quality and its predictors is of great importance. The current study addresses (a) the extent of agreement between husbands and wives on their marital quality, (b) genetic and environmental sources of individual differences on spouse reports of marital quality, and (c) the extent to which genetic and environmental influences account for overlap of spouse reports on marital quality. Adult Swedish twin women and their partners participated in this study. Genotype-environment (GE) correlations were found for marital quality, suggesting that wives' genetically influenced characteristics set a tone for the marriage. Wives' genetically influenced characteristics also accounted for overlap of spouse reports of marital quality. Finally, nonshared environmental influences were the primary contributor to both individual reports and the overlap of spouse reports, an interesting deviation from findings of behavior genetic studies of other types of relationships. (PsycINFO Database Record (c) 2004 APA, all rights reserved)
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