| Autor: |
Geniole SN; 1 Department of Psychology, Nipissing University , 100 College Drive, North Bay, Ontario, Canada P1B8L7.; 2 Department of Basic Psychological Research and Research Methods, Faculty of Psychology, University of Vienna , Liebiggasse 5, 1160 Vienna , Austria., Proietti V; 1 Department of Psychology, Nipissing University , 100 College Drive, North Bay, Ontario, Canada P1B8L7., Bird BM; 3 Department of Psychology, Simon Fraser University , 8888 University Drive, Burnaby, British Columbia, Canada V5A 1S6., Ortiz TL; 1 Department of Psychology, Nipissing University , 100 College Drive, North Bay, Ontario, Canada P1B8L7., Bonin PL; 4 Northern Ontario School of Medicine , 935 Ramsey Lake Rd, Sudbury, Canada P3E 2C6., Goldfarb B; 4 Northern Ontario School of Medicine , 935 Ramsey Lake Rd, Sudbury, Canada P3E 2C6., Watson NV; 3 Department of Psychology, Simon Fraser University , 8888 University Drive, Burnaby, British Columbia, Canada V5A 1S6., Carré JM; 1 Department of Psychology, Nipissing University , 100 College Drive, North Bay, Ontario, Canada P1B8L7. |
| Abstrakt: |
Like other animals, humans are sensitive to facial cues of threat. Recent evidence suggests that we use this information to dynamically calibrate competitive decision-making over resources, ceding more to high-threat individuals (who appear more willing/able to retaliate) and keeping more from low-threat individuals. Little is known, however, about the biological factors that support such threat assessment and decision-making systems. In a pre-registered, double-blind, placebo-controlled, cross-over testosterone administration study ( n = 118 men), we show for the first time that testosterone reduces the effects of threat on decision-making: participants ceded more resources to high-threat (versus low-threat) individuals (replicating the 'threat premium'), but this effect was blunted by testosterone, which selectively reduced the amount of resources ceded to those highest in threat. Thus, our findings suggest that testosterone influences competitive decision-making by recalibrating the integration of threat into the decision-making process. |
