Interindividual-intergroup discontinuity is the tendency for relations between groups to be more competitive than relations between individuals. We examined whether the discontinuity effect arises in part because group members experience normative pressure to favor the ingroup (parochialism). Building on the notion that accountability enhances normative pressure, we hypothesized that the discon...

Although theory suggests that testosterone should facilitate competitive performance, empirical evidence has been mixed. The present study tested the hypothesis that testosterone's effect on competitive performance depends on whether competition is among individuals (individual competition) or among teams (intergroup competition). Sixty participants (50% women) provided saliva samples and were ...

The social neuroscience approach integrates theories and methods of social psychology and neuroscience to address questions about social behaviour at multiple levels of analysis. This approach has been especially popular in the domain of intergroup relations, in part because this area of research provides a rich context for connecting basic neurocognitive mechanisms to higher-level interpersona...

Although a considerable body of research explores alterations in women's mating-relevant preferences across the menstrual cycle, investigators have yet to examine the potential for the menstrual cycle to influence intergroup attitudes. We examined the effects of changes in conception risk across the menstrual cycle on intergroup bias and found that increased conception risk was positively assoc...

The study examined the relationships between out-group perception, perceived intergroup conflict, emotions, and concern for out-group victims in the context of the Japanese earthquake of 2011. Six hundred and eighty-six participants in China completed a questionnaire immediately after the earthquake. Results showed that the image of Japan and historical conflicts between the two nations signifi...