Title |
The Effects of Sex, Sexual Orientation, and Digit Ratio (2D:4D) on Mental Rotation Performance
|
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Published in |
Archives of Sexual Behavior, March 2007
|
DOI | 10.1007/s10508-006-9166-8 |
Pubmed ID | |
Authors |
Michael Peters, John T. Manning, Stian Reimers |
Abstract |
In spite of the reduced level of experimental control, this large scale study brought some clarity into the relation between mental rotation task (MRT) performance and a number of variables where contradictory associations had previously been reported in the literature. Clear sex differences in MRT were observed for a sample of 134,317 men and 120,783 women, with men outperforming women. There were also MRT differences as a function of sexual orientation: heterosexual men performed better than homosexual men and homosexual women performed better than heterosexual women. Although bisexual men performed better than homosexual men but less well than heterosexual men, no significant differences were observed between bisexual and homosexual women. MRT performance in both men and women peaked in the 20-30 year range, and declined significantly and markedly thereafter. Both men and women showed a significant negative correlation between left and right digit finger ratio and MRT scores, such that individuals with smaller digit ratios (relatively longer ring finger than index finger) performed better than individuals with larger digit ratios. |
X Demographics
Geographical breakdown
Country | Count | As % |
---|---|---|
United States | 1 | 25% |
United Kingdom | 1 | 25% |
Unknown | 2 | 50% |
Demographic breakdown
Type | Count | As % |
---|---|---|
Members of the public | 2 | 50% |
Scientists | 2 | 50% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
United Kingdom | 3 | 2% |
Switzerland | 2 | 1% |
Canada | 1 | <1% |
Spain | 1 | <1% |
United States | 1 | <1% |
Poland | 1 | <1% |
Unknown | 157 | 95% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Ph. D. Student | 29 | 17% |
Student > Bachelor | 29 | 17% |
Researcher | 18 | 11% |
Student > Master | 15 | 9% |
Student > Doctoral Student | 13 | 8% |
Other | 42 | 25% |
Unknown | 20 | 12% |
Readers by discipline | Count | As % |
---|---|---|
Psychology | 68 | 41% |
Medicine and Dentistry | 16 | 10% |
Agricultural and Biological Sciences | 11 | 7% |
Social Sciences | 10 | 6% |
Sports and Recreations | 5 | 3% |
Other | 23 | 14% |
Unknown | 33 | 20% |