Neural responses to peers moderate conversation-drinking associations in daily life

Abstract Conversations shape future behaviors, particularly among young adults. However, young adults vary widely in their susceptibility to peer influence. What neural processes relate to this susceptibility? We examined whether activity in brain regions associated with social rewards and making se...

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Main Authors: Mia Jovanova, Ovidia Stanoi, Christin Scholz, Bruce Doré, Danielle Cosme, Yoona Kang, Nicole Cooper, Zachary M. Boyd, Dani S. Bassett, Peter J. Mucha, David M. Lydon-Staley, Kevin N. Ochsner, Emily B. Falk
Format: Article
Language:English
Published: Nature Portfolio 2025-07-01
Series:Scientific Reports
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Online Access:https://doi.org/10.1038/s41598-025-05846-9
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author Mia Jovanova
Ovidia Stanoi
Christin Scholz
Bruce Doré
Danielle Cosme
Yoona Kang
Nicole Cooper
Zachary M. Boyd
Dani S. Bassett
Peter J. Mucha
David M. Lydon-Staley
Kevin N. Ochsner
Emily B. Falk
author_facet Mia Jovanova
Ovidia Stanoi
Christin Scholz
Bruce Doré
Danielle Cosme
Yoona Kang
Nicole Cooper
Zachary M. Boyd
Dani S. Bassett
Peter J. Mucha
David M. Lydon-Staley
Kevin N. Ochsner
Emily B. Falk
author_sort Mia Jovanova
collection DOAJ
description Abstract Conversations shape future behaviors, particularly among young adults. However, young adults vary widely in their susceptibility to peer influence. What neural processes relate to this susceptibility? We examined whether activity in brain regions associated with social rewards and making sense of others’ minds relates to a common health behavior—drinking, following conversations about alcohol. We studied ten social groups of college students (N = 104 students; 4760 total observations) across two university campuses. We collected whole-brain fMRI data while participants viewed photographs of peers with whom they tended to drink at varying frequencies. Next, using ecological momentary assessment, we tracked alcohol conversations and drinking twice daily for 28 days. On average, talking about alcohol was associated with a higher likelihood of next-day drinking. Controlling for baseline drinking, participants who responded more strongly to peers with whom they drank alcohol more frequently—in brain regions associated with social rewards and mentalizing—showed a stronger, positive association between alcohol conversations and next-day drinking. Conversely, stronger neural responses to peers with whom they drank less frequently decoupled associations between alcohol conversations and next-day drinking. We conceptually replicate prior findings linking conversations and drinking in an observational, longitudinal setting and provide new evidence that neural responses to peers moderate links between alcohol conversations and drinking behavior among young adults.
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spelling doaj-art-c0f3c5ce84aa4b0d8fe47902752bf5b72025-08-20T03:42:35ZengNature PortfolioScientific Reports2045-23222025-07-0115111310.1038/s41598-025-05846-9Neural responses to peers moderate conversation-drinking associations in daily lifeMia Jovanova0Ovidia Stanoi1Christin Scholz2Bruce Doré3Danielle Cosme4Yoona Kang5Nicole Cooper6Zachary M. Boyd7Dani S. Bassett8Peter J. Mucha9David M. Lydon-Staley10Kevin N. Ochsner11Emily B. Falk12School of Medicine, University of St. GallenAnnenberg School for Communication, University of PennsylvaniaFaculty of Social and Behavioral Sciences, University of AmsterdamDesautels Faculty of Management, McGill UniversityAnnenberg School for Communication, University of PennsylvaniaDepartment of Psychology, The State University of New JerseyAnnenberg School for Communication, University of PennsylvaniaDepartment of Mathematics, Brigham Young UniversityDepartment of Bioengineering, University of PennsylvaniaDepartment of Mathematics, Dartmouth CollegeAnnenberg School for Communication, University of PennsylvaniaDepartment of Psychology, Columbia UniversityAnnenberg School for Communication, University of PennsylvaniaAbstract Conversations shape future behaviors, particularly among young adults. However, young adults vary widely in their susceptibility to peer influence. What neural processes relate to this susceptibility? We examined whether activity in brain regions associated with social rewards and making sense of others’ minds relates to a common health behavior—drinking, following conversations about alcohol. We studied ten social groups of college students (N = 104 students; 4760 total observations) across two university campuses. We collected whole-brain fMRI data while participants viewed photographs of peers with whom they tended to drink at varying frequencies. Next, using ecological momentary assessment, we tracked alcohol conversations and drinking twice daily for 28 days. On average, talking about alcohol was associated with a higher likelihood of next-day drinking. Controlling for baseline drinking, participants who responded more strongly to peers with whom they drank alcohol more frequently—in brain regions associated with social rewards and mentalizing—showed a stronger, positive association between alcohol conversations and next-day drinking. Conversely, stronger neural responses to peers with whom they drank less frequently decoupled associations between alcohol conversations and next-day drinking. We conceptually replicate prior findings linking conversations and drinking in an observational, longitudinal setting and provide new evidence that neural responses to peers moderate links between alcohol conversations and drinking behavior among young adults.https://doi.org/10.1038/s41598-025-05846-9Functional neuroimagingHealth behaviorAlcohol useEMA (ecological momentary assessment)Social influenceSocial groups
spellingShingle Mia Jovanova
Ovidia Stanoi
Christin Scholz
Bruce Doré
Danielle Cosme
Yoona Kang
Nicole Cooper
Zachary M. Boyd
Dani S. Bassett
Peter J. Mucha
David M. Lydon-Staley
Kevin N. Ochsner
Emily B. Falk
Neural responses to peers moderate conversation-drinking associations in daily life
Scientific Reports
Functional neuroimaging
Health behavior
Alcohol use
EMA (ecological momentary assessment)
Social influence
Social groups
title Neural responses to peers moderate conversation-drinking associations in daily life
title_full Neural responses to peers moderate conversation-drinking associations in daily life
title_fullStr Neural responses to peers moderate conversation-drinking associations in daily life
title_full_unstemmed Neural responses to peers moderate conversation-drinking associations in daily life
title_short Neural responses to peers moderate conversation-drinking associations in daily life
title_sort neural responses to peers moderate conversation drinking associations in daily life
topic Functional neuroimaging
Health behavior
Alcohol use
EMA (ecological momentary assessment)
Social influence
Social groups
url https://doi.org/10.1038/s41598-025-05846-9
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