Salivary Oxytocin Has Nonlinear Relationships with Trust and Reciprocity

Oxytocin has been proposed to regulate human trust. Previous experiments supported this claim by demonstrating that exogenous and endogenous oxytocin is associated with trust (how much people place in strangers) reciprocity reciprocate when trusted). However, recent replication attempts have unsuccessful the trust-enhancing effect of oxytocin, there limited evidence on whether reciprocity. This study aimed replicate previously found nonlinear relationships between concentration both utilizing a monetarily incentivized game. In college sample, we salivary levels showed (i) an inverted U-shaped relationship men (ii) women. The current results confirm previous finding Further research role secretion warranted.