Earlier social information has a stronger influence on judgments

Abstract People’s decisions are often informed by the choices of others. Evidence accumulation models provide a mechanistic account of how such social information enters the choice process. Previous research taking this approach has suggested two fundamentally different cognitive mechanisms by which...

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Main Authors: Alan Novaes Tump, David Wollny-Huttarsch, Lucas Molleman, Ralf H. J. M. Kurvers
Format: Article
Language:English
Published: Nature Portfolio 2024-01-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-023-50345-4
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author Alan Novaes Tump
David Wollny-Huttarsch
Lucas Molleman
Ralf H. J. M. Kurvers
author_facet Alan Novaes Tump
David Wollny-Huttarsch
Lucas Molleman
Ralf H. J. M. Kurvers
author_sort Alan Novaes Tump
collection DOAJ
description Abstract People’s decisions are often informed by the choices of others. Evidence accumulation models provide a mechanistic account of how such social information enters the choice process. Previous research taking this approach has suggested two fundamentally different cognitive mechanisms by which people incorporate social information. On the one hand, individuals may update their evidence level instantaneously when observing social information. On the other hand, they may gradually integrate social information over time. These accounts make different predictions on how the timing of social information impacts its influence. The former predicts that timing has no impact on social information uptake. The latter predicts that social information which arrives earlier has a stronger impact because its impact increases over time. We tested both predictions in two studies in which participants first observed a perceptual stimulus. They then entered a deliberation phase in which social information arrived either early or late before reporting their judgment. In Experiment 1, early social information remained visible until the end and was thus displayed for longer than late social information. In Experiment 2, which was preregistered, early and late social information were displayed for an equal duration. In both studies, early social information had a larger impact on individuals’ judgments. Further, an evidence accumulation analysis found that social information integration was best explained by both an immediate update of evidence and continuous integration over time. Because in social systems, timing plays a key role (e.g., propagation of information in social networks), our findings inform theories explaining the temporal evolution of social impact and the emergent social dynamics.
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spelling doaj.art-112c0606b7e94dd7b40289d22d1e538c2024-01-07T12:20:16ZengNature PortfolioScientific Reports2045-23222024-01-0114111310.1038/s41598-023-50345-4Earlier social information has a stronger influence on judgmentsAlan Novaes Tump0David Wollny-Huttarsch1Lucas Molleman2Ralf H. J. M. Kurvers3Center for Adaptive Rationality, Max Planck Institute for Human DevelopmentCenter for Adaptive Rationality, Max Planck Institute for Human DevelopmentAmsterdam Brain and Cognition, University of AmsterdamCenter for Adaptive Rationality, Max Planck Institute for Human DevelopmentAbstract People’s decisions are often informed by the choices of others. Evidence accumulation models provide a mechanistic account of how such social information enters the choice process. Previous research taking this approach has suggested two fundamentally different cognitive mechanisms by which people incorporate social information. On the one hand, individuals may update their evidence level instantaneously when observing social information. On the other hand, they may gradually integrate social information over time. These accounts make different predictions on how the timing of social information impacts its influence. The former predicts that timing has no impact on social information uptake. The latter predicts that social information which arrives earlier has a stronger impact because its impact increases over time. We tested both predictions in two studies in which participants first observed a perceptual stimulus. They then entered a deliberation phase in which social information arrived either early or late before reporting their judgment. In Experiment 1, early social information remained visible until the end and was thus displayed for longer than late social information. In Experiment 2, which was preregistered, early and late social information were displayed for an equal duration. In both studies, early social information had a larger impact on individuals’ judgments. Further, an evidence accumulation analysis found that social information integration was best explained by both an immediate update of evidence and continuous integration over time. Because in social systems, timing plays a key role (e.g., propagation of information in social networks), our findings inform theories explaining the temporal evolution of social impact and the emergent social dynamics.https://doi.org/10.1038/s41598-023-50345-4
spellingShingle Alan Novaes Tump
David Wollny-Huttarsch
Lucas Molleman
Ralf H. J. M. Kurvers
Earlier social information has a stronger influence on judgments
Scientific Reports
title Earlier social information has a stronger influence on judgments
title_full Earlier social information has a stronger influence on judgments
title_fullStr Earlier social information has a stronger influence on judgments
title_full_unstemmed Earlier social information has a stronger influence on judgments
title_short Earlier social information has a stronger influence on judgments
title_sort earlier social information has a stronger influence on judgments
url https://doi.org/10.1038/s41598-023-50345-4
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