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Humans are very diverse and although we share many similarities, we also have many differences. The social groups we belong to help form our identities (Tajfel, 1974). These differences may be difficult for some people to reconcile, which may lead to prejudice toward people who are different. Prejudice is a negative attitude and feeling toward an individual based solely on one’s membership in a particular social group (Allport, 1954; Brown, 2010). Prejudice is common against people who...
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Schemas are cognitive structures that provide a framework for interpreting and organizing social information. They help individuals navigate complex environments by offering expectations about people, events, and behaviors. Schemas influence attention, encoding, and retrieval processes, thereby shaping the entire trajectory of information processing in social contexts.Attention and Cognitive LoadDuring initial attention, schemas function as filters that prioritize schema-consistent information,...
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Group membership and stereotype content jointly affect neural processing during resource allocation decisions.

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Area of Science:

  • Neuroscience
  • Social Psychology
  • Cognitive Science

Background:

  • Stereotypes and in/outgroup categorization shape judgment and decision-making.
  • Stereotypes are learned generalizations, while group categories define affiliation safety.
  • Distinct neural mechanisms underlie these processes and their interaction.

Purpose of the Study:

  • To differentiate the functions of stereotypes and group membership using neuroimaging.
  • To investigate the neural correlates of these processes and their influence on behavioral biases.
  • To explore how outgroups moderate stereotypical reasoning.

Main Methods:

  • Functional magnetic resonance imaging (fMRI) during a money-sharing task.
  • Participants shared money with stereotyped in-group and out-group members.
  • Whole-brain univariate and region-of-interest (ROI) multivariate pattern analyses were conducted.

Main Results:

  • Colder stereotypes activated the amygdala, anterior insula, and anterior cingulate cortex (ACC).
  • ACC activation predicted reduced sharing with cold outgroup members; right lateral prefrontal cortex (rLPFC) showed a mitigating effect.
  • The orbitofrontal cortex represented both groups and stereotypes, with outgroups amplifying trait dissimilarity.

Conclusions:

  • Outgroups act as moderators of stereotypical reasoning, potentially polarizing judgments.
  • Neural representations of group membership occur early, while stereotypes are integrated during decision-making.
  • Behavioral bias is ultimately dependent on individual cognitive control mechanisms.