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

The Fake News and Polarization Landscape: Scoping Review of Fake News Research and its Link with Attitude Polarization. 📖 En lecture

This scoping review investigates the complex landscape of fake news research, focusing on its link with attitudinal polarization and identifying key themes in the literature. Our objectives included m…

Polarisation politique et co-présence sociale numérique
Lana-Blond, R., & García-Saiz, M. (2025). The Fake News and Polarization Landscape: Scoping Review of Fake News Research and its Link with Attitude Polarization.. Span J Psychol, 28, e19. https://doi.org/10.1017/SJP.2025.10010

Ingroup solidarity drives social media engagement after political crises.

Social media are often said to exacerbate polarization by platforming hostility between groups. However, positive social emotions like ingroup solidarity may also drive social media engagement, partic…

Polarisation politique et co-présence sociale numérique
Marks, M., Kyrychenko, Y., Gärdebo, J., & Roozenbeek, J. (2025). Ingroup solidarity drives social media engagement after political crises.. Proc Natl Acad Sci U S A, 122(35), e2512765122. https://doi.org/10.1073/pnas.2512765122

Following news on social media boosts knowledge, belief accuracy and trust.

Many worry that news on social media leaves people uninformed or even misinformed. Here we conducted a preregistered two-wave online field experiment in France and Germany (N = 3,395) to estimate the …

Polarisation politique et co-présence sociale numérique
Altay, S., Hoes, E., & Wojcieszak, M. (2025). Following news on social media boosts knowledge, belief accuracy and trust.. Nat Hum Behav, 9(9), 1833-1842. https://doi.org/10.1038/s41562-025-02205-6

The Role of Influencers and Echo Chambers in the Diffusion of Vaccine Misinformation: Opinion Mining in a Taiwanese Online Community.

BACKGROUND: Prevalence and spread of misinformation are a concern for the exacerbation of vaccine hesitancy and a resulting reduction in vaccine intent. However, few studies have focused on how vaccin…

Cognition politique et traitement des médias Polarisation politique et co-présence sociale numérique
Yin, J. D., Wu, T. C., Chen, C. Y., Lin, F., & Wang, X. (2025). The Role of Influencers and Echo Chambers in the Diffusion of Vaccine Misinformation: Opinion Mining in a Taiwanese Online Community.. JMIR Infodemiology, 5, e57951. https://doi.org/10.2196/57951

Contested science communication: Representations of scientists and their science in newspaper articles and the associated comment sections.

This qualitative study uses inductive thematic analysis to investigate how journalists and their readers perceive scientists. The data-driven approach was applied to 84 articles (reporting on the cont…

Polarisation politique et co-présence sociale numérique
Donois, K. K., Goodings, L., Finlay, M., & Gibson, N. (2025). Contested science communication: Representations of scientists and their science in newspaper articles and the associated comment sections.. Public Underst Sci, 34(6), 810-828. https://doi.org/10.1177/09636625251325453

Motivations to connect with like-minded audiences increase partisan sharing on social media.

Social media have been accused of facilitating the spread of partisan, hostile, and false news in ways that may foster ideological and affective polarization. Prior research has emphasized that indivi…

Polarisation politique et co-présence sociale numérique
Marie, A., & Petersen, M. B. (2025). Motivations to connect with like-minded audiences increase partisan sharing on social media.. PNAS Nexus, 4(7), pgaf197. https://doi.org/10.1093/pnasnexus/pgaf197

The effects of social media criticism against public health institutions on trust, emotions, and social media engagement.

In recent years, trust in US public health and science institutions has faced unprecedented declines, particularly among Republicans/conservatives. To what extent might institutional criticism on soci…

Polarisation politique et co-présence sociale numérique
Lee, J. Y. (2025). The effects of social media criticism against public health institutions on trust, emotions, and social media engagement.. Proc Natl Acad Sci U S A, 122(26), e2422890122. https://doi.org/10.1073/pnas.2422890122

Modularity of Online Social Networks and COVID-19 Misinformation Spreading in Russia: Combining Social Network Analysis and National Representative Survey.

BACKGROUND: The outbreak of SARS-CoV-2 in 2019 was accompanied by a rise in the popularity of conspiracy theories. These theories often undermined vaccination efforts. There is evidence that the sprea…

Polarisation politique et co-présence sociale numérique
Pavlenko, B. (2025). Modularity of Online Social Networks and COVID-19 Misinformation Spreading in Russia: Combining Social Network Analysis and National Representative Survey.. JMIR Infodemiology, 5, e58302. https://doi.org/10.2196/58302

Finnish parliamentary speeches dataset.

In this Data Descriptor, we introduce a dataset on Finnish parliamentary speeches and the background characteristics of politicians who speak in the parliament. The database includes all parliamentary…

Polarisation politique et co-présence sociale numérique
Simola, S., Nieminen, J., & Tukiainen, J. (2025). Finnish parliamentary speeches dataset.. Sci Data, 12(1), 1063. https://doi.org/10.1038/s41597-025-05056-y

Measurement, Characterization, and Mapping of COVID-19 Misinformation in Spain: Cross-Sectional Study.

BACKGROUND: The COVID-19 pandemic has been accompanied by an unprecedented infodemic characterized by the widespread dissemination of misinformation. Globally, misinformation about COVID-19 has led to…

Cognition politique et traitement des médias Polarisation politique et co-présence sociale numérique
Alvarez-Galvez, J., Lagares-Franco, C., Ortega-Martin, E., De, S. o. l. a. . H., Rojas-García, A., Sanz-Marcos, P., Almenara-Barrios, J., Kassianos, A. P., Montagni, I., Camacho-García, M., Serrano-Macías, M., & Carretero-Bravo, J. (2025). Measurement, Characterization, and Mapping of COVID-19 Misinformation in Spain: Cross-Sectional Study.. JMIR Infodemiology, 5, e69945. https://doi.org/10.2196/69945

Patient Perceptions of Social Media Use by Orthopaedic Surgeons: Comparing Responses Across the United States.

PURPOSE: To analyze patient perceptions of social media (SM) content posted by orthopaedic surgeons across the United States.METHODS: The SM posts of 20 professional orthopaedic surgeons with at least…

Polarisation politique et co-présence sociale numérique
Wharton, B. R., Stokes, D. J., Johnson, A. J., Girardi, N. G., Manfre, M. G., Keeter, C., Shinsako, K. K., McCarty, E. C., Bravman, J. T., & Frank, R. M. (2025). Patient Perceptions of Social Media Use by Orthopaedic Surgeons: Comparing Responses Across the United States.. Arthrosc Sports Med Rehabil, 7(3), 101097. https://doi.org/10.1016/j.asmr.2025.101097

Social identity shapes antecedents and functional outcomes of moral emotion expression.

There is increasing evidence that moral and emotional rhetoric spreads widely on social media and is associated with intergroup conflict, polarization, and the spread of misinformation. However, this …

Polarisation politique et co-présence sociale numérique
Brady, W. J., & Van, B. a. v. e. l. . J. J. (2025). Social identity shapes antecedents and functional outcomes of moral emotion expression.. J Exp Psychol Gen, 154(6), 1505-1522. https://doi.org/10.1037/xge0001753