168364 20260204153543.0 doi 10.1093/pnasnexus/pgaf402 sideral 147877 ART-2025-147877 eng Oliveira, Kleber Andrade Mechanistic interplay between information spreading and opinion polarization 2025 We investigate how information-spreading mechanisms affect opinion dynamics and vice versa via an agent-based simulation on adaptive social networks. First, we characterize the impact of reposting on user behavior with limited memory, a feature that introduces novel system states. Then, we build an experiment mimicking information-limiting environments seen on social media platforms and study how the model parameters can determine the configuration of opinions. In this scenario, different posting behaviors may sustain polarization or reverse it. We further show the adaptability of the model by calibrating it to reproduce the statistical organization of information cascades as seen empirically in a microblogging social media platform. Our model combines mechanisms for platform content recommendation, connection rewiring, and limited-attention user behavior, paving the way for a robust understanding of echo chambers as a specialized phenomenon of opinion polarization. Access copy available to the general public Unrestricted info:eu-repo/grantAgreement/ES/DGA/E36-23R-FENOL info:eu-repo/grantAgreement/ES/MICINN/PID2023-149409NB-I00 info:eu-repo/semantics/openAccess by-nc https://creativecommons.org/licenses/by-nc/4.0/deed.es info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Ferraz de Arruda, Henrique Moreno, Yamir Universidad de Zaragoza (orcid)0000-0002-0895-1893 2004 405 Universidad de Zaragoza Dpto. Física Teórica Área Física Teórica 5, 1 (2025), pgaf402 [9 pp.] PNAS Nexus PNAS Nexus 2752-6542 Echo chamber detection https://github.com/mminici/Echo-Chamber-Detection 8661096 http://zaguan.unizar.es/record/168364/files/texto_completo.pdf Versión publicada 3175155 http://zaguan.unizar.es/record/168364/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:168364 articulos driver 2026-02-04-13:14:34 ARTICLE