TY  - JOUR
TI  - Leaders-Cheaters in Male Group Cooperation: Differences in Nonverbal Communication and Genetic Factors
T2  - Psychology. Journal of Higher School of Economics
IS  - Psychology. Journal of Higher School of Economics
KW  - leadership
KW  - cooperation
KW  - Big Five
KW  - OXTR rs53576
KW  - oxytocin
KW  - nonverbal communication
KW  - Public Goods Game
KW  - Buryats
KW  - altruism
KW  - free-riding
KW  - cheater
KW  - supernormal stimuli
AB  - Here we report on the results of an experimental study investigating "who?" emerges as a leader in the context of male group cooperation and "how?" they do that. The study was designed based on the iterated Public Goods Game, played face-to-face in groups composed of four male strangers. The game involved interactions both with and without communication to allow the assessment of individual cooperative strategies, leadership potential, and individual features of positive nonverbal expressiveness during interactions. Along with the individual behavioural characteristics we have addressed personality traits (the Big Five) and an oxytocin receptor gene polymorphism (OXTR: SNP rs53576; A/G) as putative markers of individual sociability. Our results revealed that emergent leaders most often employed the strategy of unconditional cooperation ("altruism") and were characterized by enhanced positive facial expressiveness and extraversion compared to non-leaders. However, a fraction of emergent leaders (25%) turned out to be occasional free-riders ("cheaters"). Their distinctive features were the highest scores on extraversion, exaggerated activity in negotiations, and over-expression of positive nonverbal elements. Given the high efficiency of leaders-cheaters’ behaviour, we consider this result as the evidence for supernormal stimuli functioning in humans. Moreover, leaders-cheaters were characterized by a specific allelic frequency of OXTR rs53576 (heterozygosity: AG). The homozygous GG variant of this SNP is argued to be associated with prosociality, and the AA, on the contrary, with poor sociability. The heterozygous variant (AG) probably is a compromise that enables its carriers to successfully combine high social skills with anti-social behavior (free-riding). This finding supports existing evidence on the role of OXTR rs53576 in human social behaviour.
AU  - Victoria Rostovtseva
AU  - Marina Butovskaya
AU  - Anna Mezentseva
AU  - Araceli Rosa
AU  - Tania Gonzalez
AU  - Oleg Lazebny
UR  - https://psy-journal.hse.ru/en/2022-19-1/581962183.html
PY  - 2022
SP  - 124-149
VL  - 19