Effects of Sleep after Experimental Trauma on Intrusive Emotional Memories
- PMID: 27748249
- PMCID: PMC5103800
- DOI: 10.5665/sleep.6310
Effects of Sleep after Experimental Trauma on Intrusive Emotional Memories
Abstract
Study objectives: To investigate sleep's effect in the immediate aftermath of experiencing an analog trauma in the laboratory on reducing intrusive emotional memory formation.
Methods: Sixty-five healthy women were exposed to an experimental laboratory trauma. They viewed a neutral and a trauma film in the laboratory and were randomly allocated to either a group that slept following film viewing or a group that remained awake. Sleep was recorded with electroencephalogram in a subgroup of participants in the sleep group. All participants recorded intrusive memories in the week following the film.
Results: The sleep group experienced fewer and less distressing intrusive trauma memories compared to the wake group. These effects were particularly evident toward the end of the week. Duration spent in stage N2 as opposed to light N1 sleep, a higher number of fast parietal sleep spindles and a lower rapid eye movement sleep density predicted intrusion frequency.
Conclusions: Our results have clinical implications and set the ground for early-intervention sleep studies following trauma and prevention of chronic posttrauma disorders.
Keywords: PTSD; emotional memory; intrusion; memory consolidation; sleep; trauma.
© 2016 Associated Professional Sleep Societies, LLC.
Figures
Similar articles
-
Nitrous oxide speeds the reduction of distressing intrusive memories in an experimental model of psychological trauma.Psychol Med. 2016 Jun;46(8):1749-59. doi: 10.1017/S003329171600026X. Epub 2016 Mar 4. Psychol Med. 2016. PMID: 26937942 Clinical Trial.
-
Playing the computer game Tetris prior to viewing traumatic film material and subsequent intrusive memories: Examining proactive interference.J Behav Ther Exp Psychiatry. 2016 Dec;53:25-33. doi: 10.1016/j.jbtep.2015.11.004. Epub 2015 Nov 19. J Behav Ther Exp Psychiatry. 2016. PMID: 27664818 Free PMC article.
-
Visuospatial computer game play after memory reminder delivered three days after a traumatic film reduces the number of intrusive memories of the experimental trauma.J Behav Ther Exp Psychiatry. 2020 Jun;67:101454. doi: 10.1016/j.jbtep.2019.01.006. Epub 2019 Jan 25. J Behav Ther Exp Psychiatry. 2020. PMID: 31036259 Clinical Trial.
-
Effect of sleep manipulations on intrusive memories after exposure to an experimental analogue trauma: A meta-analytic review.Sleep Med Rev. 2023 Jun;69:101768. doi: 10.1016/j.smrv.2023.101768. Epub 2023 Feb 27. Sleep Med Rev. 2023. PMID: 36924607 Free PMC article. Review.
-
Trauma exposure and sleep: using a rodent model to understand sleep function in PTSD.Exp Brain Res. 2014 May;232(5):1575-84. doi: 10.1007/s00221-014-3890-4. Epub 2014 Mar 13. Exp Brain Res. 2014. PMID: 24623353 Review.
Cited by
-
Prospective Bidirectional Relationship Between Sleep Duration and Posttraumatic Stress Disorder Symptoms After Suspected Acute Coronary Syndrome.Psychosom Med. 2024 May 1;86(4):283-288. doi: 10.1097/PSY.0000000000001279. Epub 2024 Jan 6. Psychosom Med. 2024. PMID: 38724037
-
How do the sleep features that characterise depression impact memory?Emerg Top Life Sci. 2023 Dec 22;7(5):499-512. doi: 10.1042/ETLS20230100. Emerg Top Life Sci. 2023. PMID: 38054537 Free PMC article. Review.
-
The Impact of Sleep on Fear Extinction.Curr Top Behav Neurosci. 2023;64:133-156. doi: 10.1007/7854_2023_431. Curr Top Behav Neurosci. 2023. PMID: 37495898
-
Emotion dysregulation mediates the association between acute sleep disturbance and later posttraumatic stress symptoms in trauma exposed adults.Eur J Psychotraumatol. 2023;14(2):2202056. doi: 10.1080/20008066.2023.2202056. Eur J Psychotraumatol. 2023. PMID: 37096440 Free PMC article.
-
Neural correlates of sleep-induced benefits on traumatic memory processing.Hum Brain Mapp. 2023 Jun 15;44(9):3506-3518. doi: 10.1002/hbm.26294. Epub 2023 Mar 31. Hum Brain Mapp. 2023. PMID: 36999915 Free PMC article.
References
-
- Brewin C.R. The nature and significance of memory disturbance in posttraumatic stress disorder. Annu Rev Clin Psychol. 2011;7:203–27. - PubMed
-
- Pitman RK, Shalev AY, Orr SP. Posttraumatic stress disorder: Emotion, conditioning, and memory. Cogn Neurosci. 2000;2:1133–47.
-
- Ehlers A, Clark DM, Hackmann A, McManus F, Fennell M. Cognitive therapy for post-traumatic stress disorder: Development and evaluation. Behav Res Ther. 2005;43:413–31. - PubMed
Publication types
MeSH terms
LinkOut - more resources
Full Text Sources
Other Literature Sources
Medical