Digit Ratios (2D:4D and other) and Relative Thumb Length: A Test of Developmental Stability

2007 ◽  
Vol 105 (1) ◽  
pp. 143-152 ◽  
Author(s):  
Martin Voracek ◽  
Denise Offenmuller
Keyword(s):  
Young Adults ◽  
Sex Differences ◽  
Developmental Stability ◽  
Digit Ratio ◽  
Childhood And Adolescence ◽  
Finger Length ◽  
Digit Ratios ◽  
Fourth Digit ◽  
Prenatal Androgens ◽  
Length Measurements

Sex and side differences in relative thumb length of children and adolescents have been reported by prior researchers. These findings mirror those reported for the second-to-fourth digit ratio (2D:4D), a likely biomarker for the organizational (permanent) effects of prenatal androgens on the human brain and body. The present study investigated relative thumb length, in particular, its associations with all possible digit ratios (2D:3D, 2D:4D, 2D:5D, 3D:4D, 3D:5D, and 4D:5D), in a sample of young adults (60 men and 64 women). Relative thumb length was less precisely measurable than direct or image-based finger-length measurements, as used in digit ratio research. There were no significant sex or side differences in relative thumb length. Contrary to expectation, thumb size was not positively correlated with any digit ratios. Relative thumb length appears to be developmentally unstable (decreases during childhood and adolescence). Additional findings, such as the magnitude ranking of sex differences in digit ratios and the comparability of direct versus image-based finger-length measurements, are also discussed.

Digit Ratio (2D:4D) and Behavioral Responses to Everyday Life and Workplace-Related Interpersonal Conflict

2010 ◽  
Vol 69 (1) ◽  
pp. 31-37 ◽  
Author(s):  
Martin Voracek ◽  
Kerstin Schicker
Keyword(s):  
Sex Differences ◽  
Relational Aggression ◽  
Interpersonal Conflict ◽  
Community Sample ◽  
Behavioral Responses ◽  
Digit Ratio ◽  
Men And Women ◽  
Previous Evidence ◽  
Finger Length ◽  
Fourth Digit

Relationships of second-to-fourth digit ratio (2D:4D) versus absolute finger length, two putative markers for prenatal vs. pubertal-adolescent testosterone exposure, with specific behavioral responses to interpersonal conflict, as assessed with the Conflict Dynamics Profile (CDP; Davis, Capobianco, & Kraus, 2004), were examined in an adult community sample of 132 men and women. Paralleling related findings for specific types of aggression (namely, reactive and indirect, i.e., social/relational aggression), results showed analogous sex differences for conflict-related behaviors. Specifically, women scored significantly higher than men on the CDP Hot Buttons component, assessing upset in response to workplace-related conflict elicited by problematic behavior of workmates. Among women (but not men), higher Hot Button scores corresponded significantly to higher prenatal testosterone (indexed by lower 2D:4D). Extending previous evidence for associations between 2D:4D and aggression, this suggests possible contributions of prenatal sex-hormonal masculinization to within-sex individual variation in specific types of conflict-related behavior.

Second to fourth digit ratios, sex differences, and behavior in Chinese men and women

2009 ◽  
Vol 4 (1) ◽  
pp. 49-59 ◽  
Author(s):  
Chi-Fu Jeffrey Yang ◽  
Peter B. Gray ◽  
Jianxin Zhang ◽  
Harrison G. Pope
Keyword(s):  
Sex Differences ◽  
Men And Women ◽  
Chinese Men ◽  
Digit Ratios ◽  
Fourth Digit ◽  
And Behavior

Association of Height and Weight with Second to Fourth Digit Ratio (2D:4D) and Sex Differences

2008 ◽  
Vol 106 (2) ◽  
pp. 627-632 ◽  
Author(s):  
Cagatay Barut ◽  
Üner Tan ◽  
Asli Dogan
Keyword(s):  
Sex Differences ◽  
Digit Ratio ◽  
Fourth Digit

scholarly journals Correlation between Second to Fourth Digit Ratio and Anthropometric Variables Indicative of Cardiovascular Disease

2019 ◽  
Vol 36 (01) ◽  
pp. 028-032
Author(s):  
Shveta Swami ◽  
Virender Buddhiraja ◽  
Rimpi Gupta ◽  
Swati Bansal ◽  
Neha Gaur ◽  
...  
Keyword(s):  
Cardiovascular Disease ◽  
Indirect Evidence ◽  
Digit Ratio ◽  
Sexually Dimorphic ◽  
Positive Correlation ◽  
Young Females ◽  
Northern India ◽  
Digit Ratios ◽  
Fourth Digit ◽  
Statistical Computation

AbstractSecond to fourth digit ratio (2D:4D) is a sexually dimorphic biometric marker. Regarding indirect evidence, there have been several studies that link the waist-to-hip ratio (WHR) with the 2D:4D ratio. If the 2D:4D ratio is associated with testosterone and estrogen levels, it may be correlated with a risk of myocardial infarction (MI). The aim of the present study is to find out the correlation between anthropometric risk factors for cardiovascular disease and the 2D:4D ratio in 250 young females of the state of Haryana in Northern India. The present study was conducted on 250 females of the Haryana population aged between 17 and 35 years old. A series of 8 anthropometric measurements was obtained from the participants: height, weight, 2D:4D ratio, body mass index (BMI), waist circumference (WC), hip circumference (HC), neck circumference (NC), and WHR. The data was collected, tabulated and subjected to statistical computation using SPSS Statistics for Windows, Version 13.0 (SPSS Inc., Chicago, IL, USA). Strong positive associations between the NC and the WHR confirm that both measures are indicative of body fat. Also, a positive correlation between the 2D:4D ratio and the WHR suggests that low androgen levels in women are associated with a greater risk of obesity. Moreover, this result, as well as the positive correlation between 2D:4D ratios and NC, suggest that the digit ratio is indicative for being overweight in women and suggest a predisposition toward cardiovascular disease – however, these correlations of body measurements with digit ratios are not significant.

scholarly journals Sex differences in anogenital distances and digit ratios in wild David’s rock squirrels Sciurotamias davidianus

2014 ◽  
Vol 60 (2) ◽  
pp. 180-185 ◽  
Author(s):  
Dapeng Zhao ◽  
Zhuoyue Chen ◽  
Baoguo Li
Keyword(s):  
Sex Differences ◽  
Sexually Dimorphic ◽  
Qinling Mountains ◽  
Lateral Asymmetry ◽  
Anogenital Distance ◽  
Related Research ◽  
Digit Ratios ◽  
Fourth Digit ◽  
And Behavior ◽  
Digit Length

Abstract The prenatal hormonal environment plays an important role in organizing sex differences in the morphology, physiology and behavior of humans as well as other vertebrates. Currently, all related research on rodents has been focused on Myo-morpha. This study presents data on sex differences in the anogenital distance (AGD) and the ratio of the second to the fourth digit length (2D:4D) from 44 wild David’s rock squirrels Sciurotamias davidianus captured from the Qinling Mountains, China. This was the first study of a species from Sciuromorpha. The AGD as well as body mass are sexually dimorphic. There are no sex differences or lateral asymmetry in 2D:4D. Significant correlation was not found between AGD and 2D:4D for any paw. The findings indicate that 2D:4D may not be fixed or influenced by the prenatal steroidal environment in David’s rock squirrels.

Finger Length Digit Ratio and Gender Differences in Sensation Seeking and Internet Self-Efficacy

10.28945/3159 ◽  
2007 ◽  
Author(s):  
Peter Eachus
Keyword(s):  
Significant Relationship ◽  
Self Efficacy ◽  
Sensation Seeking ◽  
Ring Finger ◽  
Digit Ratio ◽  
Finger Length ◽  
Fourth Digit ◽  
It Education ◽  
And Gender ◽  
The Relationship

Several studies have suggested a significant relationship between finger length and aspects of personality. In this study the ratio between second and fourth digit lengths, known as digit ratio, was correlated with sensation seeking and Internet self-efficacy. In addition the relationship between the fourth and fifth digits, i.e. the little finger and ring finger, and these two constructs was also examined. No significant relationship between sensation seeking and digit ratio was observed but, in males, significant correlations between digit ratio and Internet self-efficacy were found. The implications for IT education are discussed.

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