Are life episodes replayed during dreaming?
Open accessAbstract
New phenomenological data demonstrate that integrated life episodes are incorporated in no more than 1-2% of dream reports. This appears to be at odds with the replay of temporally sequenced memory at the level of neuronal ensembles observed in some animals during sleep. This result will constrain emerging ideas on memory reactivation during sleep and the role of sleep in memory consolidation.
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REM dreams often feature bizarre and creative elements, mostly because they do not simply replay previous experiences.
“Despite their realism, dreams, especially from rapid-eye-movement (REM) sleep, often feature bizarre and creative elements, mostly because they do not simply replay previous experiences [5-7].”
From How Adversarial REM Dreams May Facilitate Creativity, and Why We Become Aware of Them (2024) · cites this paper as [6]
Only a very small portion of dream reports (1-2%) incorporate genuinely episodic memories experienced during presleep waking.
“only a very small portion of dream reports (1-2%) incorporate genuinely episodic memories experienced during presleep waking (405, 1050).”
From About Sleep's Role in Memory (2013) · cites this paper as [1050]
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References 26 · Cited by 109
- Authors
- Schwartz, S.
- Affiliations
- University of Geneva (CH)
- Corresponding author
- Schwartz, Sophie
- ORCID
- Schwartz, Sophie
- Venue
- Trends in Cognitive Sciences
- Publisher
- Elsevier BV
- Published
- 2003-08
- Volume
- 7
- Issue
- 8
- Pages
- 325-327
- ISSN
- 1364-6613 (ISSN-L)
- OpenAlex
- W2106038379
- Cited by
- 109
- References
- 26
- Citations by year
- 2026: 3 · 2025: 1 · 2024: 8 · 2023: 5 · 2022: 3 · 2021: 4 · 2020: 3 · 2019: 2 · 2018: 5 · 2017: 24 · 2016: 3 · 2015: 2 · 2014: 5 · 2013: 7 · 2012: 2
- FWCI
- 0.48
- Type
- journal article
- Language
- en
- Open access
- Licence
- Locations
- Trends in Cognitive Sciences (publishedVersion)
- PubMed (publishedVersion)
- Archive ouverte UNIGE (University of Geneva) (submittedVersion, cc-by)
- Topics
- Life Sciences › Neuroscience › Cognitive Neuroscience › Sleep and Wakefulness Research
- Life Sciences › Neuroscience › Cognitive Neuroscience › Memory Processes and Influences
- Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
- Keywords
- dream recall, memory reactivation, sleep, memory consolidation, neuronal ensembles, episodic memory, dream content
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