ArticleNeuropsychopharmacology : official publication of the American College of Neuropsychopharmacology2024
Acute sleep disruption reduces fear memories in male and female mice.
Article in Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Learning, sleep replay and consolidation of contextual fear memories: A neural network model.PLoS computational biology · 2026Article
- Sleep deprivation alters hippocampal dendritic spines in a contextual fear memory engram.Scientific reports · 2026Article
- Sleep patterns predicting stress resilience are dependent on sex.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2025Article
- Inflammatory pain in mice induces light cycle-dependent effects on sleep architecture.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2025Article
- At the Intersection of Pain and Sleep: a Roadmap for Preclinical Pain Research.Frontiers in pain research (Lausanne, Switzerland) · 2025Review
- Post-conditioning sleep deprivation facilitates delay and trace fear memory extinction.Molecular brain · 2024Article
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Abstract
Sleep problems are a prominent feature of mental health conditions including post-traumatic stress disorder (PTSD). Despite its potential importance, the role of sleep in the development of and/or recovery from trauma-related illnesses is not understood. Interestingly, there are reports that sleep disruption immediately after a traumatic experience can reduce fear memories, an effect that could be utilized therapeutically in humans. While the mechanisms of this effect are not completely understood, one possible explanation for these findings is that immediate sleep disruption interferes with consolidation of fear memories, rendering them weaker and more sensitive to intervention. Here, we allowed fear-conditioned mice to sleep immediately after fear conditioning during a time frame (18 h) that includes and extends beyond periods typically associated with memory consolidation before subjecting them to 6-h of sleep disruption. Mice exposed to this delayed regimen showed dramatic reductions in fear during tests conducted immediately after sleep disruption, as well as 24 h later. This sleep disruption regimen also increased levels of mRNA encoding brain-derived neurotrophic factor (BDNF), a molecule implicated in neuroplasticity, in the basolateral amygdala (BLA), a brain area implicated in fear and its extinction. These findings raise the possibility that the effects of our delayed sleep disruption regimen are not due to disruption of memory consolidation, but instead are caused by BDNF-mediated neuroadaptations within the BLA that actively suppress expression of fear. Treatments that safely reduce expression of fear memories would have considerable therapeutic potential in the treatment of conditions triggered by trauma.
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