Digit ratio (2D:4D) and psychopathic traits moderate the effect of exogenous testosterone on socio-cognitive processes in men

@article{Carr2015DigitR,
  title={Digit ratio (2D:4D) and psychopathic traits moderate the effect of exogenous testosterone on socio-cognitive processes in men},
  author={Justin M. Carr{\'e} and Triana L. Ortiz and Brandy Labine and Benjamin J. P. Moreau and Essi Viding and C. Neumann and Bernard Goldfarb},
  journal={Psychoneuroendocrinology},
  year={2015},
  volume={62},
  pages={319-326}
}
The Effect of Testosterone Administration and Digit Ratio (2D:4D) on Implicit Preference for Status Goods in Healthy Males
TLDR
Interactive effects of acute testosterone administration and prenatal testosterone exposure on human social status seeking are suggested, and the utility of implicit methods for measuring status-related behavior is highlighted.
Does testosterone impair men’s cognitive empathy? Evidence from two large-scale randomized controlled trials
TLDR
No evidence that cognitive empathy is impaired by testosterone administration or associated with digit ratios is found, which counter current theories and previous high-profile reports, and demonstrate that previous investigations of this topic have been statistically underpowered.
Title: Does testosterone impair men’s cognitive empathy? Evidence from two large-scale randomized controlled trials Short title/running head: Does testosterone impair men’s cognitive empathy?
TLDR
No evidence that cognitive empathy is impaired by testosterone administration or associated with digit ratios is found, which counter current theories and previous high-profile reports, and demonstrate that previous investigations of this topic have been statistically underpowered.
The Effects of Exogenous Testosterone on Men’s Moral Decision-Making
Correlational research has linked testosterone (T) to moral reasoning, such that individuals high in T respond to moral dilemmas in a more utilitarian manner (Carney and Mason 2010). In the present
REVISITING THE CRIMINOLOGICAL CONSEQUENCES OF EXPOSURE TO FETAL TESTOSTERONE: A META-ANALYSIS OF THE 2D:4D DIGIT RATIO†
As criminology has become more interdisciplinary in recent years, biosocial criminology has earned a place at the table. Although this perspective comes in many forms, one important proposition has
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TLDR
It is shown that administration of testosterone in 16 young women led to a significant impairment in their cognitive empathy, and that this effect is powerfully predicted by a proxy of fetal testosterone: the right-hand second digit-to-fourth digit ratio.
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A high-testosterone profile was found to be predictive of both high and low empathic dispositions depending on the concomitant HPA state, which adds empathy to the list of behaviors regulated by the joint action of testosterone and cortisol, as outlined by the dual hormone hypothesis.
Digit ratio (2D:4D), aggression, and testosterone in men exposed to an aggressive video stimulus.
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It is concluded that 2D:4D moderates the impact of an aggressive stimulus on aggression, such that an increase in testosterone resulting from a "challenge" is associated with a negative correlation between 2D-4D and aggression.
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The results show that testosterone administration substantially decreases lying in men, and contribute to the recent debate on the effect of testosterone on prosocial behavior and its underlying channels.
Digit Ratio 2D:4D in Relation to Autism Spectrum Disorders, Empathizing, and Systemizing: A Quantitative Review
  • Johannes Hönekopp
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    Autism research : official journal of the International Society for Autism Research
  • 2012
TLDR
The results support the idea that high PT is a risk factor for autism, but they challenge the view that PT substantially contributes to sex differences in systemizing and empathizing.
Fetal testosterone and empathy: Evidence from the Empathy Quotient (EQ) and the “Reading the Mind in the Eyes” Test
TLDR
The results suggest that pre-natal biology also plays an important role, mediated by androgen effects in the brain, and have implications for the causes of disabilities involving empathy, and may explain the increased rate of such conditions among males.
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