Misinformation Effect
The misinformation effect occurs when misleading information received after an event affects how someone later remembers or reports it. A suggestive question, caption, or account can influence that report. The concept concerns the relationship between later information and memory; it is more specific than misinformation in general and does not require AI-generated content.
Term statusEstablished Concept
A concept used in academic or professional literature. This label does not mean every claim about it is settled. About these labels.
Evidence for the claims on this page: Experimental evidence within defined tasks
Post-event suggestion has been studied experimentally. Its size, mechanism, and transfer to a particular AI exposure require separate assessment.
How to read this assessmentWhat it is
The misinformation effect is the observed influence of misleading post-event information on later memory reports about an event. (Loftus and Palmer, 1974)
In everyday language
What you hear after an event can change what you later say you remember.
What it isn't
It is not the same as all false information and does not require synthetic media.
An example
After watching a video, a viewer reads a description that mentions a detail the video did not contain. The viewer later reports seeing that detail.
Key features
- Post-event information
- Measurable change in later reports
- Studied experimentally
How it relates to synthetic imprinting
Researchers can use this established effect to ask whether generated media changes later memory reports, and whether the format makes a difference.
Research context
A long-standing topic in cognitive psychology with many experimental paradigms and ongoing debates about mechanisms and boundary conditions. (Loftus and Palmer, 1974; Lewandowsky et al., 2012)
A closer look at the cited studies
| Research question | Can question wording affect reports of a filmed collision? |
|---|---|
| Participants | 45 students in Experiment 1; 150 students in Experiment 2. |
| Design and comparison | Participants watched collision films. Questions used different verbs; Experiment 2 also included a group without a speed question. |
| Measured findings | Speed estimates varied with wording. In Experiment 2, the “smashed” group more often reported glass that the film did not show. |
| Timing and follow-up | Speed estimates were collected after viewing. Experiment 2 tested the glass report one week later. |
| Limits on interpretation | Student samples, short films, and prompted reports limit generalization. This study did not test AI media or effects beyond the measured interval. |
Related terms
A useful reading path: False memory Source monitoring Misinformation effect Synthetic memory. This sequence connects ideas; it does not claim a causal chain.
Sources and what they support
- Reconstruction of Automobile Destruction: An Example of the Interaction Between Language and Memory — Elizabeth F. Loftus, John C. Palmer (1974). Journal of Verbal Learning and Verbal Behavior, 13(5), 585–589.
Peer-reviewed research. A foundational experiment showing that wording after an event can affect later reports and recollection.
- Misinformation and Its Correction: Continued Influence and Successful Debiasing — Stephan Lewandowsky, Ullrich K. H. Ecker, Colleen M. Seifert, Norbert Schwarz, John Cook (2012). Psychological Science in the Public Interest, 13(3), 106–131.
Peer-reviewed review. Reviews why misinformation can continue to influence reasoning and how corrections can be designed more effectively.
Cite this definition
SyntheticImprinting.com Editorial Project. (2026-09-27). Misinformation Effect. Version 1.4. SyntheticImprinting.com. https://syntheticimprinting.com/terms/misinformation-effect/
APA: SyntheticImprinting.com. (2026). Misinformation Effect. https://syntheticimprinting.com/terms/misinformation-effect/
MLA: “Misinformation Effect.” SyntheticImprinting.com, 2026, https://syntheticimprinting.com/terms/misinformation-effect/. Accessed November 12, 2026.
Chicago: SyntheticImprinting.com. “Misinformation Effect.” Last modified 2026-09-27. https://syntheticimprinting.com/terms/misinformation-effect/.
Revision history
- Version 1.4 · Current
Added claim-level citations and a separate assessment of evidence support. The opening definition is unchanged.
Read this version’s definition
The misinformation effect occurs when misleading information received after an event affects how someone later remembers or reports it. A suggestive question, caption, or account can influence that report. The concept concerns the relationship between later information and memory; it is more specific than misinformation in general and does not require AI-generated content.
- Version 1.3
Expanded the opening definition; added explicit boundaries, source context, related-term cards, and linked editorial attribution.
Read the previous definition
The misinformation effect occurs when misleading information received after an event affects how someone later remembers or reports it. A suggestive question, caption, or account can influence that report. The concept concerns the relationship between later information and memory; it is more specific than misinformation in general and does not require AI-generated content.
- Version 1.2
Definition recorded in the previous release. Earlier edits are not reconstructed here.
Read the previous definition
The misinformation effect occurs when misleading information received after an event affects how someone later remembers or reports it.
What the status means
Established Concept
A concept used in academic or professional literature. This label does not mean every claim about it is settled.
How evidence labels workHelp improve this entry
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