Polarisation politique et co-présence sociale numérique

Effets de la co-présence sur la polarisation politique

412 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

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

A novel framework for sentiment classification employing Bi-GRU optimized by enhanced human evolutionary optimization algorithm.

Sentiment analysis of content is highly essential for myriad natural language processing tasks. Particularly, as the movies are often created on the basis of public opinions, reviews of people have ga…

Polarisation politique et co-présence sociale numérique
Wang, X., & Nourmohammadi, S. (2025). A novel framework for sentiment classification employing Bi-GRU optimized by enhanced human evolutionary optimization algorithm.. Sci Rep, 15(1), 17038. https://doi.org/10.1038/s41598-025-01516-y

Do people prefer to share political information that boosts their ingroup or derogates the outgroup? 📖 En lecture

Recent analyses of social media activity indicate that outgroup animosity drives user engagement more than ingroup favoritism, with content that derogates the outgroup tending to generate more viral r…

Polarisation politique et co-présence sociale numérique
Kasper, J., & Gilovich, T. (2025). Do people prefer to share political information that boosts their ingroup or derogates the outgroup?. J Exp Psychol Gen, 154(5), 1221-1235. https://doi.org/10.1037/xge0001683

Text-in-Image Enhanced Self-Supervised Alignment Model for Aspect-Based Multimodal Sentiment Analysis on Social Media.

The rapid development of social media has driven the need for opinion mining and sentiment analysis based on multimodal samples. As a fine-grained task within multimodal sentiment analysis, aspect-bas…

Polarisation politique et co-présence sociale numérique
Zhao, X., Wang, Y., & Zhong, Z. (2025). Text-in-Image Enhanced Self-Supervised Alignment Model for Aspect-Based Multimodal Sentiment Analysis on Social Media.. Sensors (Basel), 25(8). https://doi.org/10.3390/s25082553

Not our kind of crowd! How partisan bias distorts perceptions of political bots on Twitter (now X).

Social bots, employed to manipulate public opinion, pose a novel threat to digital societies. Existing bot research has emphasized technological aspects while neglecting psychological factors shaping …

Polarisation politique et co-présence sociale numérique
Lüders, A., Reiss, S., Dinkelberg, A., MacCarron, P., & Quayle, M. (2025). Not our kind of crowd! How partisan bias distorts perceptions of political bots on Twitter (now X).. Br J Soc Psychol, 64(2), e12794. https://doi.org/10.1111/bjso.12794

From Individual Expression to Group Polarization: A Study on Twitter's Emotional Diffusion Patterns in the German Election.

This study analyzes 194,151 tweets from the 2021 German federal election using sentiment analysis and statistical techniques to examine social media's role in shaping group emotions, voters' emotional…

Polarisation politique et co-présence sociale numérique
Zhang, Y., Zhou, B., Hu, Y., & Zhai, K. (2025). From Individual Expression to Group Polarization: A Study on Twitter's Emotional Diffusion Patterns in the German Election.. Behav Sci (Basel), 15(3). https://doi.org/10.3390/bs15030360