Bishop Grosseteste Research Online

Baby was a black sheep : digit ratio (2D:4D), maternal bonding and primary and secondary psychopathy

Blanchard, A., Lyons, M. and Centifanti, L. (2016) Baby was a black sheep : digit ratio (2D:4D), maternal bonding and primary and secondary psychopathy. Personality and Individual Differences, 99. pp. 67-71. ISSN 0191-8869

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Psychopathy is generally considered to be a male adaptation. While studies have elucidated a relationship to freely circulating testosterone, less is known about the role of prenatal testosterone (PT) in the development of primary and secondary psychopathy and how this pertains to sex differences. In this study (N = 148), digit ratio (2D:4D) was used to investigate the relationship between prenatal testosterone and primary and secondary psychopathy. In addition, quality of recalled maternal bonding was measured to see if postnatal experience could affect the influence of PT on psychopathic behaviours. Low LH2D:4D predicted primary and secondary psychopathy in women. In men, low maternal care predicted primary psychopathy and high maternal protection predicted secondary psychopathy. Low maternal care also predicted primary psychopathy in women. Lower levels of maternal care and higher levels of maternal control contributed to primary psychopathy above and beyond PT. Lower levels of maternal care were also an influential factor for secondary psychopathy above and beyond PT, although higher levels of mother control were not.

Item Type: Article
Additional Information: This item is available from the research repository at the University of Durham
Depositing User: Stephen Macdonald
Date Deposited: 02 Aug 2019 12:22
Last Modified: 18 Sep 2019 13:31

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