In this episode, we look a little deeper into one of our more elusive video topics, namely why it is that male facial and behavioural dominance and masculinity can be predicted from the length of the second and fourth digits (the first finger and ring finger). Why is this? Is it reasonable to assume behavioural traits from the masculinity of one’s face or the length of their fingers?
- Neave, Nick, et al. “Second to fourth digit ratio, testosterone and perceived male dominance.” Proceedings of the Royal Society of London. Series B: Biological Sciences 270.1529 (2003): 2167-2172.
- Marchegiani, Vanessa, et al. “Gender differences in the interrelations between digit ratio, psychopathic traits and life history strategies.” Personality and Individual Differences 135 (2018): 108-112.