An imaging genetics approach to understanding social influence

Area of Science:

• Neuroscience
• Behavioral Genetics
• Social Psychology

Background:

• Normative social influences profoundly shape human behavior, yet the underlying biological mechanisms are not fully understood.
• Existing neuroimaging studies link social influence and conformity to the brain's reward system.
• Exclusion, a form of social punishment, activates pain-related brain systems and is associated with conformity.

Purpose of the Study:

• To propose a theoretical framework and integrative research approach for studying social influences on the brain.
• To explore genetic moderators that influence individual susceptibility to social cues and normative social influences.
• To investigate how genetic variants and neurochemical pathways modulate responses to social rewards and punishments.

Main Methods:

• Review of neuroimaging evidence connecting social influence, conformity, and exclusion to specific brain systems.
• Examination of genetic variants and their role in modulating neurochemical responses.
• Proposal of an integrative imaging genetics approach combining neuroimaging and genetic data.

Main Results:

• Social influence and conformity are associated with the brain's reward system.
• Social exclusion activates pain-processing brain regions and correlates with conformity.
• Genetic variants may increase sensitivity to social rewards or punishments, thereby influencing conformity.

Conclusions:

• Genetic factors can moderate neurochemical responses, influencing sensitivity to social influences.
• An integrative imaging genetics approach is proposed to elucidate brain mediators and genetic modulators of social influences.
• Understanding these biological and genetic underpinnings is crucial for explaining human attitudes, beliefs, and actions in social contexts.