算法推荐被认为加剧政治极化的证据与反驳分别是什么？
What is the evidence for and against algorithmic recommendation intensifying political polarisation?
支持方指出个性化推送增加同质内容暴露；反对方（如 Nature Human Behaviour 多项研究）发现多数用户主动选择极化内容，算法效应小于既往假设，离线因素仍主导。
Proponents note personalised feeds raise exposure to homogeneous content; critics (e.g., several Nature Human Behaviour studies) find most users actively choose polarising content and that algorithmic effects are smaller than assumed, with offline factors still dominant.
难度 专业 · 适合 高中(15-18)
CC BY 4.0 · 已核验 · Verified 2026-11-02
来源 · Source
Lorenz-Spreen, P., Oswald, L., Lewandowsky, S. & Hertwig, R. (2023), 《数字媒体与民主的世界因果与相关证据系统综述》, 自然·人类行为, 7, 74–101
Lorenz-Spreen, P., Oswald, L., Lewandowsky, S. & Hertwig, R. (2023), A systematic review of worldwide causal and correlational evidence on digital media and democracy, Nature Human Behaviour, 7, 74–101
独立核验依据 · Independent verification: 核验依据 1 CROSSREF 标识 10.1038/s41562-022-01460-1：A systematic revi
#算法推荐 #政治极化 #社交媒体
框架效应（framing）与议程设置有何区别？
How does framing differ from agenda-setting?
议程设置关乎「关注哪个议题」，框架效应关乎「如何呈现议题」会显著改变受众解读与偏好。恩特曼指出框架通过定义问题、归因因果、道德评价与建议补救四重功能运作。
Agenda-setting concerns which issue gets attention; framing concerns how an issue is presented, which markedly changes interpretation and preference. Entman argues framing works through defining problems, diagnosing causes, making moral judgments and suggesting remedies.
难度 专业 · 适合 高中(15-18)
CC BY 4.0 · 已核验 · Verified 2026-11-02
来源 · Source
Entman, R. (1993), 《框架：澄清一个断裂范式》, 传播学期刊 (Journal of Communication), 43(4)
Entman, R. (1993), Framing: Toward Clarification of a Fractured Paradigm, Journal of Communication
独立核验依据 · Independent verification: 核验依据 1 CROSSREF 标识 10.1111/j.1460-2466.1993.tb01304.x：Framing:
#框架效应 #议程设置 #媒体框架
社交媒体如何改变政治动员的成本结构？
How do social media change the cost structure of political mobilisation?
社交媒体极大降低了组织与传播信息的边际成本，使去中心化动员（如标签行动）更易发起。但也带来「懒人行动主义」，浅层点击未必转化为线下参与。
Social media sharply lower the marginal cost of organising and spreading information, enabling decentralised mobilisation such as hashtag campaigns. But it also spawns 「slacktivism」, where shallow clicks may not convert into offline participation.
难度 进阶 · 适合 初中(12-15)
CC BY 4.0 · 已核验 · Verified 2026-11-03
来源 · Source
世界银行 (2016), 《世界发展报告 2016：数字红利》, 世界银行
World Bank (2016), World Development Report 2016: Digital Dividends
独立核验依据 · Independent verification: 核验依据 1 CROSSREF 标识 10.1596/978-1-4648-0671-1：World Development
#社交媒体 #政治动员 #数字参与
议程设置理论的核心主张是什么？
What is the core claim of agenda-setting theory?
麦库姆斯与肖 1972 年提出，媒体虽未必告诉人们怎么想，但成功告诉人们该想什么——媒体对议题的显著性会转移为公众的认知显著性。
McCombs and Shaw (1972) proposed that media may not tell people what to think, but they tell them what to think about—media salience of issues transfers into public salience.
难度 进阶 · 适合 大众
CC BY 4.0 · 来源待核验 · Source pending review
来源 · Source
出处备注：著录含书名，但缺版次 / 出版社 / 年份中的一部分，需编辑补全后才能做独立比对。
McCombs, M. & Shaw, D. (1972), 《大众媒体的议程设置功能》, 舆论季刊
McCombs, M. & Shaw, D. (1972), The Agenda-Setting Function of Mass Media, Public Opinion Quarterly
#议程设置 #媒体效果 #舆论
「信息茧房」与「过滤气泡」的机制差异是什么？
What is the mechanistic difference between the echo chamber and the filter bubble?
信息茧房强调用户主动选择同质化信源、社区互相强化；过滤气泡强调算法基于行为数据被动窄化内容供给。帕里泽指出后者让用户更难察觉自己被隔离。
The echo chamber stresses users actively choosing homogeneous sources and mutually reinforcing communities; the filter bubble stresses algorithms passively narrowing supply based on behavioural data. Pariser notes the latter makes users less aware of their isolation.
难度 进阶 · 适合 大众
CC BY 4.0 · 已核验 · Verified 2026-11-03
来源 · Source
Pariser, E. (2011), 《过滤气泡：互联网对你隐藏了什么》, 企鹅出版社
Pariser, E. (2011), The Filter Bubble: What the Internet Is Hiding from You, Penguin Press
独立核验依据 · Independent verification: 核验依据 1 ARCHIVE 标识 filterbubblewhat0000pari：The filter bubble :
#信息茧房 #过滤气泡 #算法
什么是「沉默的螺旋」理论？
What is the spiral of silence theory?
诺埃勒-诺依曼认为，人们会感知主导舆论并因害怕孤立而隐瞒少数派观点，使主流意见在公开表达中被放大、少数意见进一步沉默，形成自我强化的螺旋。
Noelle-Neumann argued people sense the dominant opinion and, fearing isolation, hide minority views, so the majority view is amplified in public expression while minority views fall further silent—a self-reinforcing spiral.
难度 进阶 · 适合 大众
CC BY 4.0 · 来源待核验 · Source pending review
来源 · Source
出处备注：著录含书名，但缺版次 / 出版社 / 年份中的一部分，需编辑补全后才能做独立比对。
Noelle-Neumann, E. (1974), 《沉默的螺旋：一种舆论理论》, 传播学期刊 (Journal of Communication), 24(2)
Noelle-Neumann, E. (1974), The Spiral of Silence: A Theory of Public Opinion, Journal of Communication, 24(2)
#沉默的螺旋 #舆论 #从众