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Posterior medial frontal cortex and threat-enhanced religious belief: a replication and extension

Published in Social Cognitive and Affective Neuroscience

Research indicates that the posterior medial frontal cortex (pMFC) functions as a ‘neural alarm’ complex broadly involved in registering threats and helping to muster relevant responses. Holbrook and colleagues investigated whether pMFC similarly mediates ideological threat responses, finding that downregulating pMFC via transcranial magnetic stimu...

Acquiring group bias: Observing other people's nonverbal signals can create social group biases.

Published in Journal of personality and social psychology

Evidence of group bias based on race, ethnicity, nationality, and language emerges early in the life span. Although understanding the initial acquisition of group bias has critical theoretical and practical implications, precisely how group biases are acquired has been understudied. In two preregistered experiments, we tested the hypothesis that ge...

Deconstructing bias in social preferences reveals groupy and not-groupy behavior.

Published in Proceedings of the National Academy of Sciences of the United States of America

Group divisions are a continual feature of human history, with biases toward people's own groups shown in both experimental and natural settings. Using a within-subject design, this paper deconstructs group biases to find significant and robust individual differences; some individuals consistently respond to group divisions, while others do not. We...

The Psychology of Motivated versus Rational Impression Updating.

Published in Trends in cognitive sciences

People's beliefs about others are often impervious to new evidence: we continue to cooperate with ingroup defectors and refuse to see outgroup enemies as rehabilitated. Resistance to updating beliefs with new information has historically been interpreted as reflecting bias or motivated cognition, but recent work in Bayesian inference suggests that ...

Mothering influences domestic chick’s laterality

Laterality is the prevalence of one side of the body to perform motor acts and perceptual functions. The evolution of directional biases that are consistent across individuals of a group may have been constrained by the opportunity for asymmetric animals to interact with other asymmetric animals. If we assume that social animals have more opportuni...