Humans tend to form groups, which often find themselves in conflict with rival groups. But why do people show such a ready tendency to harm people in opposing groups? A new study led by researchers at ...

While previous research shows outrage and division drive engagement on social media, a new study of digital behavior during the 2024 US election finds that this effect flips during a major crisis—when ...

Previous studies have shown that ingroup/outgroup membership influences individual’s fairness considerations. However, it is not clear yet how group membership influences brain activity when a ...

Reputation systems promote cooperation and tie formation in social networks. But how reputations affect cooperation and the evolution of networks is less clear when societies are characterized by ...

Social psychologists have known for decades that working cooperatively with members of different social groups can reduce prejudice and intergroup conflict. In the classic Robbers Cave study, two ...

Humans have a deep-seated tendency to categorize others into “us” and “them,” a process that occurs within fractions of a second. The study demonstrated that feedback monitored in the presence of an ...

A new study involving more than 879,000 participants published this week challenges the assumption that liking an outgroup means disliking your ingroup. It sheds light on a 1940s study in which Black ...

It's a well-known principle in social psychology that people define themselves in terms of social groupings and are quick to denigrate others who don't fit into those groups. Others who share our ...

Some of human history's greatest atrocities—genocide, slavery, ethnic cleanings—are rooted in our ability to dehumanize people from other social, political, or cultural groups. Whereas prior research ...

As senators plan for an impeachment trial in which former President Donald Trump is accused of inciting his supporters to mount a deadly insurrection at the Capitol, global concern is growing about ...

RICHMOND, Va. (June 16, 2022) — Humans tend to form groups, which often find themselves in conflict with rival groups. But why do people show such a ready tendency to harm people in opposing groups? A ...