Veille Scientifique étudiante concernant la cognition partagée (SharedCognition) et la polarisation politique

Alimenté par : Claudia Dapino Ponel, Madeline Desmurs

Cette application est une plateforme collaborative de veille scientifique permettant d'importer des publications depuis PubMed, de suivre leur lecture, d'en extraire les éléments méthodologiques clés (protocole, variables, résultats), et de constituer une synthèse structurée pour faciliter la réalisation de revues de littérature.

Dernière synchronisation : 11/06/2026

Polarisation politique et co-présence sociale numérique

Effets de la co-présence sur la polarisation politique

405 articles disponibles

political polarization AND (media OR news) AND (experiment OR study)
attitude polarization AND (information OR exposure) AND experiment
opinion polarization AND (media OR news) AND (attitudes OR judgment)
group polarization AND (decision OR discussion OR experiment)
political attitudes AND polarization AND experiment

Emotion Impact and Contagion Mechanism of Misinformation: A Network-Based Risk Analysis.

The proliferation of online misinformation poses severe societal risks, including public health crises and political polarization, with emotional manipulation serving as a key driver of its spread. Ho…

Polarisation politique et co-présence sociale numérique
Chen, Q. (2026). Emotion Impact and Contagion Mechanism of Misinformation: A Network-Based Risk Analysis.. Risk Anal, 46(6), e70265. https://doi.org/10.1111/risa.70265
01/06/2026 Lire →

State media control influences large language models.

Millions of people around the world query large language models (LLMs) for information. Although several studies have compellingly documented the persuasive potential of these models, there is limited…

Polarisation politique et co-présence sociale numérique
Waight, H., Yang, E., Yuan, Y., Messing, S., Roberts, M. E., Stewart, B. M., & Tucker, J. A. (2026). State media control influences large language models.. Nature. https://doi.org/10.1038/s41586-026-10506-7
13/05/2026 Lire →

Sad but true: how emotions and political ideology shape perceptions of information. ✓

Political and economic challenges, amplified by social media algorithms, are increasingly polarising how people receive and evaluate information. This study examines how political views and immediate …

Polarisation politique et co-présence sociale numérique
Halko, M. L., Halonen, J., Laukkanen, M., Nyberg, H., & Salmela, M. (2026). Sad but true: how emotions and political ideology shape perceptions of information.. Cogn Emot, 1-19. https://doi.org/10.1080/02699931.2026.2662478
06/05/2026 Lire →

The effects of political advertising on Facebook and Instagram before the 2020 US election.

We study the effects of social media political advertising by randomizing subsets of 36,906 Facebook users and 25,925 Instagram users to have political ads removed from their news feeds for 6 weeks be…

Polarisation politique et co-présence sociale numérique
Allcott, H., Gentzkow, M., Levy, R., Crespo-Tenorio, A., Dumas, N., Mason, W., Moehler, D., Barberá, P., Brown, T., Cisneros, J. C., Dimmery, D., Freelon, D., González-Bailón, S., Guess, A. M., Kim, Y. M., Lazer, D., Malhotra, N., Nair-Desai, S., Nyhan, B., … Tucker, J. A. (2026). The effects of political advertising on Facebook and Instagram before the 2020 US election.. Nat Hum Behav, 10(5), 884-895. https://doi.org/10.1038/s41562-025-02328-w
01/05/2026 Lire →

Who believes in science? A computational tool for identifying language invoking or disputing scientific knowledge.

From disputes over COVID-19 to contestation over climate science, questions of the value and legitimacy of mainstream scientific knowledge have become matters of high-stakes political struggle. Here, …

Cognition politique et traitement des médias Polarisation politique et co-présence sociale numérique
Wetts, R., & Kitson, D. (2026). Who believes in science? A computational tool for identifying language invoking or disputing scientific knowledge.. Public Underst Sci, 35(4), 434-454. https://doi.org/10.1177/09636625251401198
01/05/2026 Lire →

Partisan Prejudice: The Role of Beliefs About the Unchanging Nature of Ideology and Partisans.

Although there is a tendency to think all forms of essentialism-the belief that characteristics are inherent and unchangeable-are similar, some theories suggest different foundations and outcomes. We …

Polarisation politique et co-présence sociale numérique
Hoyt, C. L., Burnette, J. L., & Moore, M. (2026). Partisan Prejudice: The Role of Beliefs About the Unchanging Nature of Ideology and Partisans.. Pers Soc Psychol Bull, 52(5), 1356-1385. https://doi.org/10.1177/01461672241283862
01/05/2026 Lire →

Why do Public Debates Escalate? Trigger Points and the Moral Dynamics of "Hot Politics".

Escalating, emotionally charged, and moralized forms of controversy are a central feature of contemporary politics. Our study develops a framework for understanding how political debates between ordin…

Polarisation politique et co-présence sociale numérique
Westheuser, L., Lux, T., & Mau, S. (2026). Why do Public Debates Escalate? Trigger Points and the Moral Dynamics of "Hot Politics".. Br J Sociol. https://doi.org/10.1111/1468-4446.70115
15/04/2026 Lire →

Digital Discourse, Secondary Victimization, and Psychological Harm: Mixed-Methods Analysis of System Justification in the #MeToo Movement.

BACKGROUND: The #MeToo movement, initiated in 2006 and amplified on social media in 2017, mobilized women worldwide to share experiences of sexual harassment and assault online. While the movement inc…

Polarisation politique et co-présence sociale numérique
Parekh, H., Thakkar, S., Bhatt, P., & Akello, P. (2026). Digital Discourse, Secondary Victimization, and Psychological Harm: Mixed-Methods Analysis of System Justification in the #MeToo Movement.. J Med Internet Res, 28, e75533. https://doi.org/10.2196/75533
09/04/2026 Lire →

Evaluating Public Sentiment on Attention-Deficit/Hyperactivity Disorder and Autism Spectrum Disorder Compared With Other Mental Health Disorders From Posts on X (Formerly Known as Twitter): Longitudinal Analysis.

BACKGROUND: Neurodevelopmental disorders, especially attention-deficit/hyperactivity disorder (ADHD) and autism spectrum disorder (ASD), have seen a marked rise in public attention, yet research on pu…

Polarisation politique et co-présence sociale numérique
Tiosso, B. a. t. i. s. t. e. t. t. i. . V., Sanchez, F. G., Varaona, A., Lara-Abelenda, F., Pinto, d. a. . C. o. s. t. a. . M., Chart-Pascual, J. P., Rodriguez-Quiroga, A., Quintero, J., & Alvarez-Mon, M. A. (2026). Evaluating Public Sentiment on Attention-Deficit/Hyperactivity Disorder and Autism Spectrum Disorder Compared With Other Mental Health Disorders From Posts on X (Formerly Known as Twitter): Longitudinal Analysis.. JMIR Infodemiology, 6, e74440. https://doi.org/10.2196/74440
09/04/2026 Lire →

Mapping the political landscape from data traces: Multidimensional opinions of users, politicians and media outlets on X.

Studying political activity on social media often requires defining and measuring political stances of users or content. Relevant examples include the study of opinion polarization, or the study of po…

Cognition politique et traitement des médias Polarisation politique et co-présence sociale numérique
Vendeville, A., Royo-Letelier, J., Cassells, D., Cointet, J. P., Crépel, M., Faverjon, T., Lenoir, T., Mazoyer, B., Ooghe-Tabanou, B., Pournaki, A., Yamashita, H., & Ramaciotti, P. (2026). Mapping the political landscape from data traces: Multidimensional opinions of users, politicians and media outlets on X.. Data Brief, 65, 112615. https://doi.org/10.1016/j.dib.2026.112615
01/04/2026 Lire →

The political effects of X's feed algorithm.

Feed algorithms are widely suspected to influence political attitudes. However, previous evidence from switching off the algorithm on Meta platforms found no political effects. Here we present results…

Cognition politique et traitement des médias Polarisation politique et co-présence sociale numérique
Gauthier, G., Hodler, R., Widmer, P., & Zhuravskaya, E. (2026). The political effects of X's feed algorithm.. Nature, 652(8109), 416-423. https://doi.org/10.1038/s41586-026-10098-2
01/04/2026 Lire →

"It's a complicated issue": exploring perspectives on Reddit from 2016 to 2024 about the American Psychiatric Association's Goldwater Rule and the ethics of public-professional mental health commentary.

INTRODUCTION: The American Psychiatric Association’s (APA) Goldwater Rule prohibits its member-psychiatrists from offering professional opinions on an individual’s mental health without direct evaluat…

Polarisation politique et co-présence sociale numérique
Smith, A., Graña, J., Bhugra, D., Oquendo, M. A., Buadze, A., Ventriglio, A., & Liebrenz, M. (2026). "It's a complicated issue": exploring perspectives on Reddit from 2016 to 2024 about the American Psychiatric Association's Goldwater Rule and the ethics of public-professional mental health commentary.. BMC Med Ethics, 27(1). https://doi.org/10.1186/s12910-026-01447-x
30/03/2026 Lire →