Three People in Africa carrying tubs


Our research aims to apply the tools and methods of science to understand and ultimately transcend the cognitive and psychological forces that drive humans into intergroup conflict. Our goal is to understand how the human mind drives intergroup conflict and find ways to intervene.

Four Processes that Drive Intergroup Conflict and Discrimination

Empathic Failures

Intuitively, one of the consequences of conflict is an erosion of empathy. However, it is much less clear what this means in conflict situations.

What type of empathy matters most to intergroup conflict –‘cognitive’ empathy? Affective empathy? How can these best be measured?

Do we fail to empathize with others’ physical pain, or does it have more to do with denying their grief, humiliation and social pain? Are these similarly processed in the brain?

Can empathy for one’s own group actually drive conflict?

In the Peace and Conflict Neuroscience Lab, we examine the cognitive roots of empathy, forexample by looking at neural responses to others’ physical pain and emotional suffering, andwe use behavioral research to determine what roles ingroup and outgroup empathy play in real intergroup conflicts.

Protestors with megaphone
Young female refugee


Some of the darkest chapters in human history have been accompanied by one group denying full humanity to another. Does this type of blatant dehumanization still exist today, and if so, is it associated with hostility, beyond (mere) dislike harbored towards those groups? Or is blatant dehumanization a relic of our colonial past? In pursuit of these questions, we have developed a number of tools to measure blatant dehumanization: a measure based on the popular ‘ascent of man’ diagram, a trait–based measure, a measure using the reverse correlation technique. With these tools we have found that blatant dehumanization endures across many cultural contexts, and towards a host of target groups; and we have demonstrated the importance of blatant dehumanization to major socio–political issues, including the Iranian Nuclear Accord, the response to Muslim refugees and the Roma minority population in Europe, the Israeli–Palestinian conflict, and responses to Muslim and Mexican immigration in the U.S.

Collective Blame

The tendency to collectively blame an entire group for the actions of individuals can license “vicarious retribution,”or revenge against innocent members of a group. We have examined the relevance of collective blame to a number of realworld intergroup contexts, including the collective blame of Muslims for terror attacks, the African American Community for drug abuse, and the Roma community for drug trafficking.

Mother and daughter smiling at camera
Protestors in the street

Motivated Reasoning

We think of ourselves as rational beings, but our reason is heavily influenced by unconscious biases: We are Naïve Realists. If these biases are unconscious, how can they be measured? We explore ways in which neuroimaging and other subtle measures can be used to measure and assess highlevel reasoning biases in a range of ideological settings, from the IsraeliPalestinian conflict to the conflict between American political partisans. Ultimately, we hope that these measures will give us a window into not just what people think, but how they think in ideologically fraught settings.

Three Interventions to Reduce Intergroup Conflict and Discrimination


A common technique in intergroup settings is to have members of each group take the perspective of an individual from the other group. However, particularly in the context of asymmetric intergroup conflict, perspectivetaking has been shown to fail or backfire. We have examined the benefits of playing the opposite role: Being given the opportunity to speak and be listened to: PerspectiveGiving. We have examined this in the IsraeliPalestinian conflict, and the conflict over Mexican immigration in the American Southwest.

Woman running an activity with children
Muslim women walking by Statue of Liberty graffiti

Changing Meta-Perceptions

One factor that contributes to our negative views of others is how we think they view us, which we call ‘metaperception’. Since these metaperceptions are often inaccurate, we are exploring the ways in which updating these metaperceptions can reduce intergroup hostility. We have examined this in the U.S with respect to Muslims, using text and video stimuli.

Educational Interventions

The human brain contains a host of unconscious biases that help to shape our views of other groups. We are examining if inducing peopleto pull these unconscious biases into conscious awareness can reduce the effects that these processes have on people’s responses to other groups. We have examined this in the U.S. and Spain, with respect to Muslims, African Americans and the Roma.

Girl with hand in a peace sign at a protest or march