Accuracy in discrimination of self-reported cooperators using static facial information |
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| Authors: | Anthony C. Little Benedict C. Jones Lisa M. DeBruine Robin I.M. Dunbar |
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| Affiliation: | 1. Division of Psychology, School of Natural Sciences, University of Stirling, Stirling FK9 4LA, UK;2. Institute of Neuroscience and Psychology, University of Glasgow, Glasgow G12 8QB, UK;3. Department of Experimental Psychology, University of Oxford, Oxford OX1 3UD, UK |
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| Abstract: | People readily ascribe personality traits to others and believe that faces hold important guides to character. Here we examined the relationship between static facial appearance and self-reported cooperation/defection using the prisoner’s dilemma (N = 193). Study 1 combined face images of those self-reporting they would be most and least likely to cooperate. The composites of cooperators were seen as more cooperative than non-cooperators. Study 2 demonstrated accuracy with ratings of individual faces. Masculinity of face shape was negatively related to self-reported cooperation for men, but not women. Further, ratings of smile intensity were positively, but not significantly, related to self-reported cooperation. Overall, individuals appear able judge the potential of others to cooperate from static facial appearance alone at rates greater than chance. |
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| Keywords: | Cooperation Detection Prisoner&rsquo s dilemma Accuracy Social perception |
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