NDLI: The Association Between 2D:4D Ratios and Sociosexuality: A Failure to Replicate

Content Provider	Springer Nature Link
Author	Charles, ra E. Alexander, Gerianne M.
Copyright Year	2010
Abstract	Researchers investigating the role of biological factors in the development and maintenance of interest in uncommitted sexual activity (i.e., sociosexuality) have reported that greater prenatal androgen action in women, as inferred by the ratio of the 2nd to 4th digit, is associated with greater interest in uncommitted sexual relationships, as measured by scores on the Sociosexuality Orientation Inventory (SOI) (Clark, 2004). This evidence suggesting a rather extensive role for prenatal factors in human mating behavior has been cited over 20 times in the literature. However, despite this indication of the impact of the research results on theories of human sex differences, there are no published replications of the original finding. For that reason, the association between 2D:4D ratios and sociosexuality was evaluated in two studies. In the first study, using methodology similar to the original report, no significant association between 2D:4D ratios and SOI scores was found either in women (n = 25) or men (n = 25). Next, to test the possibility that moderating factors, such as menstrual cycle phase and circulating testosterone levels, influence the strength of the association between 2D:4D ratios and sociosexuality, salivary hormone levels and behaviors were measured during the early follicular and mid-luteal phase of the menstrual cycle in women not using hormonal contraceptives (n = 40) and at two time points in women using oral contraceptives (n = 44) and in men (n = 42). Women and men in this study showed the expected sex differences in hormone levels and behavior. However, circulating hormones and 2D:4D ratios were unrelated to measures of sociosexuality obtained at the two test sessions. In sum, these data suggest that factors other than prenatal and circulating hormones explain the sex differences in self-reports of sociosexuality.
Starting Page	587
Ending Page	595
Page Count	9
File Format	PDF
ISSN	00040002
Journal	Archives of Sexual Behavior
Volume Number	40
Issue Number	3
e-ISSN	15732800
Language	English
Publisher	Springer US
Publisher Date	2011-01-04
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Sociosexuality Sex differences Menstrual cycle Hormones Gender role 2D:4D Sexual Behavior Public Health/Gesundheitswesen Social Sciences
Content Type	Text
Resource Type	Article
Subject	Arts and Humanities Psychology

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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