Heil, Martin and Kavsek, Michael and Rolke, Bettina and Beste, Christian and Jansen, Petra (2011) Mental rotation in female fraternal twins: Evidence for intra-uterine hormone transfer? BIOLOGICAL PSYCHOLOGY, 86 (1). pp. 90-93. ISSN 0301-0511,
Full text not available from this repository. (Request a copy)Abstract
Men outperform women in mental rotation by about one standard deviation. Prenatal exposure to testosterone has been suggested as one cause. In animals it has been shown that a female fetus located between two male ones is exposed to higher levels of testosterone. It is still unclear whether intra-uterine hormone transfer exists in humans. Therefore, the influence of an intra-uterine presence of a male co twin was studied in female fraternal twins (N = 200). Women with a male co-twin outperformed women with a female co-twin by about a third standard deviation. In a no-twin control group (N = 200), performance of women with a slightly older sibling did not depend upon the sibling's sex. These findings provide preliminary support for the theory of an influence of prenatal testosterone on mental rotation performance. (c) 2010 Elsevier B.V. All rights reserved.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | SEX DIZYGOTIC TWINS; HEMISPHERIC-ASYMMETRY; SAME-SEX; CEREBRAL LATERALIZATION; SPATIAL ABILITIES; OPPOSITE; TESTOSTERONE; HANDEDNESS; METAANALYSIS; PERFORMANCE; Opposite-sex twins; Prenatal hormone transfer; Sex differences; Mental rotation; Testosterone |
| Subjects: | 700 Arts & recreation > 796 Athletic & outdoor sports & games |
| Divisions: | Human Sciences > Institut für Sportwissenschaft |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 29 Jun 2020 08:25 |
| Last Modified: | 29 Jun 2020 08:25 |
| URI: | https://pred.uni-regensburg.de/id/eprint/21494 |
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