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the claim
Audio played during REM sleep can improve memory recall.
the verdict
CONTESTED
contested - the weight sits with the supporting side
Recorded sources
2 sources for · 1 against
Is it true that Audio played during REM sleep can improve memory recall?
Partly. Studies investigating targeted memory reactivation via audio played during REM sleep have produced conflicting results, with some finding positive associations with performance improvement and others finding no significant effect on recall.
Verdict: CONTESTED · 2 sources for, 1 against · Last checked
The analysis
Judged against the evidence record for claims of this kind.
The evidence we hold leans leans supported
How this was weighed
official record 3x · fact-check 2x · hedged 1x · crowd & reference 1x
- peer-reviewed literature · peer-reviewed · supports · weight 1.3 · 2023
- peer-reviewed literature · peer-reviewed · supports · weight 1.3 · 2021
- OpenAIRE · peer-reviewed · refutes · weight 1 · 2025
Evidence for · 2
Targeted memory reactivation using sounds in human REM sleep positively predicted overnight performance improvement.
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Abdellahi, M. E., Koopman, A. C., Treder, M. S., & Lewis, P. A. (2023). Targeted memory reactivation in human REM sleep elicits detectable reactivation. peer-reviewed literature. https://doi.org/10.7554/elife.84324
Evidence against · 1
Study found that audio stimuli played during REM sleep did not increase recall of the related subject matter.
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OpenAIRE: Enhanced incubation: using day-time video to enhance incorporation of nighttime dream cues and lucid dreaming. (2025). OpenAIRE. https://doi.org/10.26108/bkt0-n180
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More for · 1
Re-presenting sounds during REM sleep (targeted memory reactivation) positively predicted overnight performance improvement.
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Abdellahi, M. E. A., Koopman, A. C. M., Treder, M., & Lewis, P. (2021). Targeted memory reactivation in human REM sleep elicits detectable reactivation. peer-reviewed literature. https://doi.org/10.1101/2021.12.01.470530
Related receipts
- Is it true that Polyphasic sleep improves memory? CONTESTED PARTIAL
What does the evidence say?
Judged against the evidence record for claims of this kind.
Receipt History
first checked06 Aug 2026
judged → CONTESTED · 5006 Aug 2026
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