Testosterone causes both prosocial and antisocial behavior

Jinzang

Member
Although in several species of bird and animal, testosterone increases male–male aggression, in human males, it has been suggested to instead promote both aggressive and nonaggressive behaviors that enhance social status. However, causal evidence distinguishing these accounts is lacking. Here, we tested between these hypotheses in men injected with testosterone or placebo in a double-blind, randomized design. Participants played a modified Ultimatum Game, which included the opportunity to punish or reward the other player. Administration of testosterone caused increased punishment of the other player but also, increased reward of larger offers. These findings show that testosterone can cause prosocial behavior in males and provide causal evidence for the social status hypothesis in men.

Full text from the Proceedings of the National Academy of Sciences
 
The point of this study is that it's often said that testosterone makes men more aggressive ('roid rage) when the experimental evidence show that it makes men more dominant, which is different.
 
I couldn't find the dose administered in the study, but a chart says that after administration the median level for the men who received the testosterone was 60 nmol/l, which is a supraphysiological level
 

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