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Digit ratio (2D:4D) and sensation seeking: New data and meta-analysis
- Source :
-
Personality & Individual Differences . Jan2010, Vol. 48 Issue 1, p72-77. 6p. - Publication Year :
- 2010
-
Abstract
- Abstract: Previously reported associations between low (male-typical) digit ratio (2D:4D), a putative pointer to prenatal testosterone exposure, and high (male-typical) sensation seeking have been inconsistent across studies (alternately present for men, women, either sex, or neither). Addressing this question again in three new studies (N =198, 188, 1118) produced similarly erratic findings. Meta-analysis of the entire literature (13 studies with nearly 3000 individuals, including unpublished accounts) showed that the current cumulative evidence does not support any negative correlations between 2D:4D and sensation seeking traits. The only significant meta-analytical finding was for right-hand 2D:4D and the experience seeking facet of sensation seeking in both sexes, but this effect accounted for merely 0.4% attributable variance, and moreover was directionally opposite to expectation (i.e., a positive correlation). Discussed are inherent limitations of narrow-scoped approaches (such as via 2D:4D) for elucidating the biological bases of individual difference variables with evidentially intricate neurochemical underpinnings (such as sensation seeking). [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 01918869
- Volume :
- 48
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Personality & Individual Differences
- Publication Type :
- Academic Journal
- Accession number :
- 44580929
- Full Text :
- https://doi.org/10.1016/j.paid.2009.08.019