Echo chambers amplify beliefs by sealing people off from counter-content

Evidence

The term ‘echo chamber’ follows a metaphor derived from the acoustic echo chamber – an enclosed room where sounds reverberate and become amplified via sound-reflecting walls. In a similar vein, a social media echo chamber is usually thought of as a situation in which beliefs and opinions are amplified and reinforced within a closed media system. In other words, by entering an echo chamber people are able to selectively seek out information that reinforces their pre-existing views about the world, whilst avoiding exposure to counter-content that may question these beliefs in potentially uncomfortable ways. — Sander van der Linden, Foolproof, 390

Categorization

• DEFINE: Defines ‘echo chamber’ through the acoustic metaphor of amplification and reverberation.
• XREF: connects to: The Internet emboldens fringe believers by confirming isolated views — Michael Barkun, A Culture of Conspiracy: Apocalyptic…, 148; Echo chambers convert the social-corrective group effect into conformity pressure — Lee McIntyre, Post-Truth, 120; Being inside an echo chamber raises one’s odds of encountering misinformation — Sander van der Linden, Foolproof: Why Misinformation Infects…, 447 (+6 more)

Broader Connections

• Echo chambers convert the social-corrective group effect into conformity pressure #expands (0.85) — Lee McIntyre, Post-Truth, 120
• Repetition within echo chambers, not evidence, produces conspiracist assent #expands (0.85) — Russell Muirhead and Nancy L. Rosenblum, A Lot of People Are Saying, 129
• Being inside an echo chamber raises one’s odds of encountering misinformation #expands (0.80) — Sander van der Linden, Foolproof, 447
• An echo chamber requires both homophily and biased information diffusion #expands (0.80) — Sander van der Linden, Foolproof, 442
• Talk radio monetized confirmation bias by giving audiences a voice in echo chambers. #exemplifies (0.75) — Lee McIntyre, Post-Truth, 137
• Exposing people to opposing viewpoints increases rather than reduces polarization #complicates (0.75) — Sander van der Linden, Foolproof, 453
• Bridging echo chambers fails without cross-partisan trust #qualifies (0.72) — Cailin O’Connor and James Owen Weatherall, The Misinformation Age, 62
• Etiquette-based political silence can conceal racist views from public scrutiny #exemplifies (0.72) — Nina Eliasoph, Avoiding politics, 295