Relative lengths of fingers and toes in human males and females

Hormones and Behavior

Volumn 42, Issue 4, 2002, Pages 492-500

  McFadden, Dennis ^a   Shubel, Erin ^a  

^a UNIVERSITY OF TEXAS AT AUSTIN   (United States)

Author keywords

2D:4D ratio; Masculinization; Prenatal development; Relative finger length; Relative toe length; Sexual orientation

Indexed keywords

ARTICLE; CONTROLLED STUDY; FEMALE; FINGER; FOOT; HETEROSEXUALITY; HOMOSEXUALITY; HUMAN; HUMAN EXPERIMENT; INDEX FINGER; MALE; NORMAL HUMAN; PRIORITY JOURNAL; SEX DIFFERENCE; TOE;

EID: 0036942752     PISSN: 0018506X     EISSN: None     Source Type: Journal    
DOI: 10.1006/hbeh.2002.1833     Document Type: Article

References (24)

1. Bogaert, A. F., and Hershberger, S. (1999). The relation between sexual orientation and penile size. Arch. Sex. Behav. 28, 213-221.
2. Brown, W. M., Finn, C. J., and Breedlove, S. M. (2001a). A sex difference in digit length ratio in mice (abstract). Horm. Behav. 39, 325, doi: 10.1006/hbeh.2001.1662.
3. Brown, W. M., Finn, C. J., Cooke, B. M., and Breedlove, S. M. (2002). Differences in finger length ratios between self-identified "butch" and "femme" lesbians. Arch. Sex. Behav. 31, 123-127.
4. Brown, W. M., Hines, M., Fane, B., and Breedlove, S. M. (2001b). Masculinized finger length ratios in humans with congenital adrenal hyperplasia (abstract). Horm. Behav. 39, 325-326, doi: 10.1006/hbeh.2001.1662.
5. Cohen, J. (1992). A power primer. Psychol. Bull. 112, 155-159.
6. Ecker, A. (1875). Some remarks about a varying character in the hands of humans. Arch. Anthropol. 8, 68-74.
7. Gam, S. M., Burdi, A. R., Babler, W. J., and Stinson, S. (1975). Early prenatal attainment of adult metacarpal-phalangeal rankings and proportions. Am. J. Phys. Anthropol. 43, 327-332.
8. George, R. (1930). Human finger types. Anat. Rec. 46, 199-204.
9. Hall, J. A. Y., and Kimura, D. (1995). Sexual orientation and performance on sexually dimorphic motor tasks. Arch. Sex. Behav. 24, 395-407.
10. Kondo, T., Zakany, J., Innis, J. W., and Duboule, D. (1997). Of fingers, toes and penises. Nature 390, 29.
11. Manning, J. T. (2002). Digit Ratio: A Pointer to Fertility, Behavior, and Health Rutgers Univ. Press, Piscataway, NJ.
12. Manning, J. T., Callow, M., and Bundred, P. E. (2002). Finger and toe ratios in humans and mice: Implications for the aetiology of diseases influenced by HOX genes. Med. Hypoth., submitted.
13. McFadden, D. (2002.) Masculinization effects in the auditory system. Arch. Sex. Behav. 31, 93-105.
14. McFadden, D., and Bracht, M. S. (2002a). The relative lengths and weights of metacarpals and metatarsals in baboons (Papio hamadryas). Horm: Behav., in press.
15. McFadden, D., and Bracht, M. S. (2002b). Sex differences in length ratios from the extremities of humans gorillas, and chimpanzees (Abstract). Horm. Behav., 41, 479.
16. McFadden, D., and Champlin, C. A. (2000). Comparison of auditory evoked potentials in heterosexual, homosexual, and bisexual males and females. J. Assoc. Res. Otolaryngol. 1, 89-99.
17. McFadden, D., and Shubel, E. (2002a). Lack of correlation between otoacoustic emissions and relative lengths of fingers in humans (the 2D:4D ratio) (abstract). Horm. Behav., 41, 480.
18. McFadden, D., and Shubel, E. (2002b). The relationships between otoacoustic emissions and relative lengths of fingers and toes in humans. Horm. Behav., in press.
19. McKay, K. P. (2001). 2nd and 4th Digit Ratio of Children with ADHD. Unpublished undergraduate honors thesis, University of Texas, Austin, June 2001.
20. Phelps, V. R. (1952). Relative index finger length as a sex-influenced trait in man. Am. J. Hum. Genet. 4, 72-89.
21. Rahman, Q., and Wilson, G. D. (2002). Sexual orientation and the 2nd to 4th finger length ratio: Evidence for organizing effects of sex hormones or developmental instability? Psychoneuroendocrinology, in press.
22. Robinson, S. J., and Manning, J. T. (2000). The ratio of 2nd to 4th digit length and male homosexuality. Evol. Hum. Behav. 21, 333-345.
23. Smail, P. J., Reyes, F. I., Winter, J. S. D., and Faiman, C. (1981). The fetal hormonal environment and its effect on the morphogenesis of the genital system. In S. J. Kogan and E. S. E. Hafez (Eds.), Pediatric Andrology, pp. 9 -19. Martinus Nijhoff, The Hague.
24. Williams, T. J., Pepitone, M. E., Christensen, S. E., Cooke, B. M., Huberman, A. D., Breedlove, N. J., Breedlove, T. J., Jordan, C. L., and Breedlove, S. M. (2000). Finger-length ratios and sexual orientation. Nature 404, 455-456.