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| PMID |
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| TITLE |
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| Sensation seeking in females from opposite- versus same-sex twin pairs: hormone transfer or sibling imitation? |
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| ABSTRACT |
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| The aims of this study were to replicate the results of a previous study (Resnick et al. 1993) and to extend them by examining the evidence for prenatal exposure to androgens versus sibling imitation as a potential cause of group differences in levels of sensation seeking. Participants were members of the Australian Twin Registry who had participated in a structured interview study and completed the Zuckerman Sensation-Seeking Scale. Three sets of group comparisons were conducted: (1) the sensation seeking scores of females from same-sex twin pairs (n = 1,947) were compared to females from opposite-sex twin pairs (n = 564), (2) females from same-sex twin pairs without a brother (n = 580) were compared to same-sex females with a close-in-age older brother (n = 300), and (3) same-sex females who had a close-in-age older brother (n = 300) were compared to females from opposite-sex twin pairs (n = 564). Females from opposite-sex twin pairs obtained significantly higher scores than females from same-sex twin pairs on the experience-seeking (d = 0.12) and thrill and adventure seeking (d = 0.10) subscales, but not the boredom susceptibility (d = -0.01) or disinhibition (d < 0.01) subscales of the Sensation-Seeking Scale. The modest effects obtained could not be explained by the psychosocial effect of having a close-in-age brother. Considering these effects alongside the overall sex differences in the Sensation-Seeking Scales of experience-seeking (d = 0.12 vs. d = 0.18) and thrill and adventure-seeking (d = 0.10 vs. d = 0.83) suggests that prenatal androgens may actually play a large role in the sex difference in the personality trait of experience seeking, and a smaller role in thrill and adventure-seeking; there was no evidence from this study that prenatal androgens are important for explaining sex differences in the traits of boredom susceptibility or disinhibition. |
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| DATE PUBLISHED |
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| HISTORY |
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| PUBSTATUS |
PUBSTATUSDATE |
| received |
2010/08/30 |
| accepted |
2010/11/10 |
| entrez |
2010/12/09 06:00 |
| pubmed |
2010/12/09 06:00 |
| medline |
2011/10/20 06:00 |
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| AUTHORS |
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| NAME |
COLLECTIVENAME |
LASTNAME |
FORENAME |
INITIALS |
AFFILIATION |
AFFILIATIONINFO |
| Slutske WS |
|
Slutske |
Wendy S |
WS |
|
Department of Psychological Sciences, University of Missouri, Columbia, MO 65211, USA. SlutskeW@missouri.edu |
| Bascom EN |
|
Bascom |
Elise N |
EN |
|
|
| Meier MH |
|
Meier |
Madeline H |
MH |
|
|
| Medland SE |
|
Medland |
Sarah E |
SE |
|
|
| Martin NG |
|
Martin |
Nicholas G |
NG |
|
|
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| INVESTIGATORS |
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| JOURNAL |
|
| VOLUME: 41 |
| ISSUE: 4 |
| TITLE: Behavior genetics |
| ISOABBREVIATION: Behav Genet |
| YEAR: 2011 |
| MONTH: Jul |
| DAY: |
| MEDLINEDATE: |
| SEASON: |
| CITEDMEDIUM: Internet |
| ISSN: 1573-3297 |
| ISSNTYPE: Electronic |
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| MEDLINE JOURNAL |
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| MEDLINETA: Behav Genet |
| COUNTRY: United States |
| ISSNLINKING: 0001-8244 |
| NLMUNIQUEID: 0251711 |
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| PUBLICATION TYPE |
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| PUBLICATIONTYPE TEXT |
| Journal Article |
| Research Support, N.I.H., Extramural |
| Twin Study |
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| COMMENTS AND CORRECTIONS |
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| GRANTS |
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| GRANTID |
AGENCY |
COUNTRY |
| MH66206 |
NIMH NIH HHS |
United States |
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| GENERAL NOTE |
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| KEYWORDS |
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| MESH HEADINGS |
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| DESCRIPTORNAME |
QUALIFIERNAME |
| Adult |
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| Australia |
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| Boredom |
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| Female |
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| Humans |
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| Imitative Behavior |
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| Male |
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| Sensation |
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| Sex Factors |
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| Sibling Relations |
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| Siblings |
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| Twins, Dizygotic |
genetics |
| Zygote |
genetics |
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| SUPPLEMENTARY MESH |
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| GENE SYMBOLS |
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| CHEMICALS |
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| OTHER ID's |
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