eprintid: 2791 rev_number: 9 eprint_status: archive userid: 69 dir: disk0/00/00/27/91 datestamp: 2015-11-02 13:27:41 lastmod: 2015-11-02 13:27:41 status_changed: 2015-11-02 13:27:41 type: article metadata_visibility: show creators_name: Zollo, Fabiana creators_name: Novak, Petra Kralj creators_name: Del Vicario, Michela creators_name: Bessi, Alessandro creators_name: Mozetič, Igor creators_name: Scala, Antonio creators_name: Caldarelli, Guido creators_name: Quattrociocchi, Walter creators_id: fabiana.zollo@imtlucca.it creators_id: creators_id: michela.delvicario@imtlucca.it creators_id: creators_id: creators_id: creators_id: guido.caldarelli@imtlucca.it creators_id: walter.quattrociocchi@imtlucca.it title: Emotional Dynamics in the Age of Misinformation ispublished: pub subjects: GT subjects: H1 subjects: HT divisions: EIC full_text_status: public abstract: According to the World Economic Forum, the diffusion of unsubstantiated rumors on online social media is one of the main threats for our society. The disintermediated paradigm of content production and consumption on online social media might foster the formation of homogeneous communities (echo-chambers) around specific worldviews. Such a scenario has been shown to be a vivid environment for the diffusion of false claim. Not rarely, viral phenomena trigger naive (and funny) social responses—e.g., the recent case of Jade Helm 15 where a simple military exercise turned out to be perceived as the beginning of the civil war in the US. In this work, we address the emotional dynamics of collective debates around distinct kinds of information—i.e., science and conspiracy news—and inside and across their respective polarized communities. We find that for both kinds of content the longer the discussion the more the negativity of the sentiment. We show that comments on conspiracy posts tend to be more negative than on science posts. However, the more the engagement of users, the more they tend to negative commenting (both on science and conspiracy). Finally, zooming in at the interaction among polarized communities, we find a general negative pattern. As the number of comments increases—i.e., the discussion becomes longer—the sentiment of the post is more and more negative. date: 2015 date_type: published publication: PloS One volume: 10 number: 9 publisher: Public Library of Science pagerange: e0138740 id_number: 10.1371/journal.pone.0138740 refereed: TRUE issn: 1932-6203 official_url: http://dx.doi.org/10.1371%2Fjournal.pone.0138740 citation: Zollo, Fabiana and Novak, Petra Kralj and Del Vicario, Michela and Bessi, Alessandro and Mozetič, Igor and Scala, Antonio and Caldarelli, Guido and Quattrociocchi, Walter Emotional Dynamics in the Age of Misinformation. PloS One, 10 (9). e0138740. ISSN 1932-6203 (2015) document_url: http://eprints.imtlucca.it/2791/1/emotional.pdf