Premium
Association between second to fourth digit ratio and personality among Indian men
Author(s) -
Bagepally Bhavani S.,
Majumder Joydeep,
Kotadiya Sanjay M.
Publication year - 2019
Publication title -
american journal of human biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.559
H-Index - 81
eISSN - 1520-6300
pISSN - 1042-0533
DOI - 10.1002/ajhb.23331
Subject(s) - carelessness , openness to experience , personality , digit ratio , big five personality traits , psychology , logistic regression , aggression , association (psychology) , clinical psychology , developmental psychology , testosterone (patch) , social psychology , medicine , psychiatry , endocrinology , psychotherapist
Objectives To examine the relationship between the personality domains with the second to fourth digit ratio (2d:4d); a prenatal testosterone exposure marker. Methods The 2d:4d for both hands was measured for the Indian male subjects' (n = 994). Ten‐item personality inventory and displaced aggression questionnaire data were collected in a self‐reported proforma in this cross sectional study with a convenient sampling approach. Results The personality traits, namely openness to new experiences, carelessness, and self‐discipline were significantly differed between lower‐half and higher‐half of 2d:4d by median split. The right hand 2d:4d was positively correlated with open to new experiences and negatively correlated with disorganization, carelessness, and revenge planning. The left hand 2d:4d was positively correlated with aggression. On binary logistic regression, openness was positively associated while carelessness was negatively associated with the right hand 2d:4d and self‐discipline trait was negatively associated with the left hand 2d:4d. Conclusion This study affirmed the link between 2d:4d and domains of Big Five personality factors among Indian men and inverse relationship between 2d:4d and more “female” hands in the domains of disorganization, carelessness, and revenge planning even in men, emphasizing the effect of prenatal testosterone exposure on human personality.