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The Incentives Lab
HBT-COG-0377 · Dimension COG · Cognition

Hysterical Contagion

Symptoms or beliefs spread through a group with no underlying physical cause.

Social·Mental Model·Grade B·draft· enriching…

Scientific Definition

Symptoms or beliefs spread through a group with no underlying physical cause.

Plain-English Definition

Symptoms or beliefs spread through a group with no underlying physical cause.

Feynman Explanation

Sometimes the disease is the belief.

Core Principle

Symptoms or beliefs spread through a group with no underlying physical cause.

Mechanisms

Psychological

Pending editorial review.

Behavioral Economic

Symptoms or beliefs spread through a group with no underlying physical cause.

Neurological

Pending editorial review.

Evolutionary

Pending editorial review.

Sociological

Pending editorial review.

Computational

Pending editorial review.

Systems

Investor and employee panic can be contagious without basis.

Inputs (Triggers)

Pending editorial review.

Outputs (Behaviors)

Pending editorial review.

Behavioral Signature

Sometimes the disease is the belief.

Examples

Everyday
  • Mass tech-stack panic about a 'doomed' framework that's actually fine.
Modern (Organizational)
  • Investor and employee panic can be contagious without basis.
Historical

Pending editorial review.

Famous Experiments

Pending editorial review.

Design Principles

  • Anchor to evidence quickly when narratives accelerate.

Measurement Approaches

Pending editorial review.

Evidence

Evidence Grade
B (A strongest → E speculative)
Replication
★★★☆☆
Intervention Confidence
3 / 5
Consensus
Pending editorial review (HBT v1.0 auto-seed).
Limitations
Pending editorial review (HBT v1.0 auto-seed).
Open Research Questions

Pending editorial review.

Primary References

Pending editorial review.

Signature Section

The Perverse Incentive Lens™

How this behavior is exploited — and how to redesign around it.

Exploitation
Investor and employee panic can be contagious without basis.
Amplifying Incentives
Investor and employee panic can be contagious without basis.
Org Failure Modes
Investor and employee panic can be contagious without basis.
Societal Failure Modes
Pending editorial review (HBT v1.0 auto-seed).
Ethical Considerations
Pending editorial review (HBT v1.0 auto-seed).
Redesign Strategies
Anchor to evidence quickly when narratives accelerate.
Diagnostic Questions
  • Anchor to evidence quickly when narratives accelerate.
Warning Signs

Pending editorial review.

Red Flags

Pending editorial review.

Intervention Playbook
Individual
Anchor to evidence quickly when narratives accelerate.
Team
Pending editorial review (HBT v1.0 auto-seed).
Organization
Pending editorial review (HBT v1.0 auto-seed).
Policy
Pending editorial review (HBT v1.0 auto-seed).
AI Implications
Detection
Pending editorial review (HBT v1.0 auto-seed).
Measurement
Pending editorial review (HBT v1.0 auto-seed).
Mitigation
Pending editorial review (HBT v1.0 auto-seed).
Responsible Use
Pending editorial review (HBT v1.0 auto-seed).

Interactive Mini Network

Click any neighbor to re-center the graph and follow the threads of connection.

HBT-COG-0377 · COG
Hysterical Contagion
HCAPAbilene ParadoxADActon's DictumABActor-Observer BiasALAffinity / Liking BiasAlAltruismAsAstroturfingAPAttitude PolarizationABAttribution BiasBEBarnum EffectBJBecause Justification

Knowledge Graph Neighbors

Version History

v1.1.0 · 2026-06-28Initial auto-seed from corpus.