Poster D20, Monday, March 27, 8:00 – 10:00 am, Pacific Concourse
Neural basis of altruistic motivation towards ingroup soccer fans
Tiago Bortolini1,2, Patrícia Bado1,2, Sebastian Hoefle1, Annerose Engel1, Roland Zahn3, Jean-Claude Dreher4, Jorge Moll1; 1Cognitive and Behavioral Neuroscience Unit, D’Or Institute for Research and Education, Rio de Janeiro, 2Graduate Program in Morphological Sciences, Federal University of Rio de Janeiro, 3Institute of Psychiatry, Psychology & Neuroscience, Centre for Affective Disorders, King’s College London, 4Neuroeconomics, Reward and Decision-making Team, Institut des Sciences Cognitives Marc Jeannerod, Centre National de la Recherche Scientifique
Humans have a natural need to belong to social groups, showing intense ingroup prosocial behavior. Although the psychological mechanisms behind human prosociality have been extensively studied, the specific neural systems bridging group belongingness and prosocial motivation remain to be identified. Here, we used soccer fandom as an ecologically valid and naturalistic framing of group membership to investigate the neural mechanisms underlying ingroup altruistic behavior using event-related functional magnetic resonance (fMRI). We designed an effort-based measure using force on a handgrip tapping on the motivation to earn money for oneself or for others (ingroup fans or ‘neutral’ participants not affiliated to soccer). While overlapping valuation signals in the medial orbitofrontal cortex (mOFC) were observed for these three conditions, the subgenual cingulate cortex (SCC) showed more robust responses for ingroup altruistic versus non-ingroup altruistic decisions. The SCC, a region previously implicated in altruistic decisions and group affiliation, also displayed increased functional connectivity with the mOFC for ingroup compared to non-ingroup conditions. These findings indicate a key role for the SCC to dovetail altruistic motivations in the context of natural groups with generic neural valuation systems.
Topic Area: EMOTION & SOCIAL: Emotion-cognition interactions