Our Susceptibility to Misinformation

Gordon Pennycook

In brief

People are drawn to misinformation through emotional hooks and intuitive reasoning rather than deliberate deception. Reminders to focus on accuracy and simple nudges can reduce false-content sharing on social media. However, the social media environment itself—emphasizing engagement over truth—undermines our ability to discern misinformation without structural changes to platform incentives.

Key findings

Emotional content impairs discernment: More emotionally evocative misinformation garners more attention and spreads further. Emotionality also reduces fact-checking effectiveness by overwhelming reasoning capacity.
Implied truth effect: When fact-checking labels appear selectively on false content, people infer that unlabeled content has been verified as true, potentially increasing belief in labeled false claims relative to completely unlabeled false claims.
Cognitive reflection helps across the political spectrum: While analytic thinking doesn't eliminate partisan biases (which are intuitive), taking time to think through claims improves accuracy discernment even across party lines.
Sharing context alters judgment: When people are mentally focused on what to share—considering engagement, personal image, and appeal—they become less discerning about accuracy than when focused on truth alone. This is fixable by shifting mindset.
Accuracy nudges work via attention: Simple interventions like asking "Do you think it's important to share only accurate content?" shift people's focus to accuracy and reduce false-content sharing. The effect is modest and ephemeral but measurable.

Mechanisms of susceptibility

The talk frames two pathways to misinformation:

Individual trait pathway: People with higher trait emotionality rely more on intuitions and are more susceptible to misinformation.
Content pathway: Even in controlled experiments with identical claims, adding emotional language increases misinformation belief and sharing.

Political ideology doesn't directly cause susceptibility; rather, exposure to particular news ecosystems (e.g., Fox News vs. MSNBC) builds different intuitive beliefs. These show up as biases but can be overcome through cognitive reflection.

Limitations of current interventions

Fact-checking has scale limits. Successful labeling requires near-perfect coverage; once labels become widespread, the absence of a label becomes an endorsement, backfiring.
Incentive structure is the bottleneck. Social media platforms reward engagement, not accuracy. No individual-level intervention bypasses this structural problem.
Most people care about truth. Even conspiracy theorists are concerned with accuracy; the issue is not apathy but a misaligned information environment.

Notes

This video distills years of Pennycook's experimental work on misinformation susceptibility into an accessible overview. A strength is the direct engagement with causality: controlled experiments showing that emotionality causes increased susceptibility and that accuracy nudges reduce sharing of false content. The talk also honestly acknowledges the scale problem—fact-checking works but cannot scale to label all misinformation—and the structural issue that engagement-based ranking undermines truth-seeking.

The framing that "people care about accuracy" is a useful counterweight to "people are irrational"; the challenge is reshaping contexts and incentives, not converting rationality-averse minds.