nauka: Reddit

Evidence: 69 • authority: 72

In the context of news media and social media, an echo chamber is defined as an environment or ecosystem in which participants encounter beliefs that amplify or reinforce their preexisting beliefs, by communication and repetition inside a closed system and insulated from rebuttal. The echo chambers function by circulating existing views without encountering opposing views, potentially leading to three cognitive biases: correlation neglect, selection bias and confirmation bias. Echo chambers may increase social and political polarization and extremism. On social media, it is thought that echo chambers limit exposure to diverse perspectives, and also favor and reinforce presupposed narratives…

Evidence: — • authority: 92

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 vaccine misinformation diffuses online, who is responsible for the diffusion, and the mechanisms by which that happens. In addition, researchers have rarely investigated this in non-Western contexts particularly vulnerable to misinformation. Objective This study aims to identify COVID-19 vaccine misinformation, map its diffusion, and identify the effect of echo chamber…

Evidence: — • authority: 92

Gestational diabetes mellitus and disordered eating behaviours: A qualitative study of online forum discussions.. Aims To explore how gestational diabetes mellitus (GDM) and disordered eating behaviours (DEBs) in pregnancy and postpartum are discussed on an online forum. Methods A qualitative reflexive thematic analysis of threads and comments from publicly accessible Reddit forums. Posts were included if they referred to current or previous GDM and described experiences related to DEBs. Only English-language posts were analysed, with no geographical restrictions. Results A total of 144 posts referring to DEBs in the context of current or previous GDM were analysed. Three overarching themes…

Evidence: — • authority: 92

Reddit Discussions During the 2022 Mpox Outbreak: Observational Analysis of Sentiment, Topics, and Audience Engagement.. Background Public health crises often reshape online discourse by amplifying uncertainty, frustration, stigma, and misinformation, with important implications for risk communication. Objective This study examines these dynamics on Reddit (Reddit Inc) during a recent outbreak, using Mpox as a case study. Methods We analyzed sentiment, topical themes, and audience engagement in posts and comments drawn from 4 Mpox-related subreddits. Using natural language processing methods, we applied sentiment analysis and latent Dirichlet allocation to classify 1169 posts and 6571 comme…

Evidence: — • authority: 72

Algorithmic amplification describes increases in the distribution or visibility of content on digital platforms, arising from a combination of automated ranking by recommendation systems and users' own sharing. Definitions differ over the baseline used to determine whether content has been amplified, and separating the contribution of ranking from that of users is a recurring difficulty in the research. Major platforms, including Facebook, YouTube, TikTok, and X (formerly Twitter), use such systems to determine what appears in users' feeds and search results. The term is used in research on social media and digital media regulation to describe how platform design choices influence the distr…

Evidence: — • authority: 72

On Reddit, a social news site, some communities (known as subreddits or subs) are centred around explicit, violent, propagandist, or hateful material. Many such subreddits have been the topic of controversy, at times receiving significant media coverage. Journalists, attorneys, media researchers, and others have commented that such communities shape and promote biased views of international politics, the veracity of evidence-based medicine, misogynistic rhetoric, and other socially disruptive concepts. Contrary to popular opinion as well as previous staff practices and statements, Reddit's founders have said they did not intend the platform to be a "bastion of free speech" where online hate…

Evidence: — • authority: 65