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The Impact of Trauma on Sleep Quality: Examining the Role of Nightmares in Cognitive Impairment

T. S. Saranya, Sera Mary Soloman, Sandeep Kumar Gupta, Sebnem Yucel, Recep Yucel

Annals of Neurosciences April 18, 2026 DOI: 10.1177/09727531261436606 (opens in new tab)

Study at a glance

AI-extracted from the abstract
Characteristics Cross-sectional survey Peer reviewed
Sample size 22
Population Young adults aged 18-30
Topics Dreaming
Keywords Cognition Sleep system call Distress Psychological intervention Cognitive skill Clinical psychology Association psychology Sleep disorder Cognitive impairment Insomnia Sleep deprivation
Key findings Individuals with trauma history reported more frequent nightmares and poorer sleep quality, and frequent nightmares were associated with memory lapses, concentration problems, and higher daytime impairment.

Abstract

Background: Trauma has a profound impact on both psychological and physiological functioning, with sleep disturbances-particularly nightmares-emerging as one of the most commonly reported symptoms. These sleep disruptions often co-occur with cognitive difficulties, affecting memory and attention.

Purpose: The present study aimed to explore the relationship between trauma history, nightmare frequency and their effects on cognitive functions such as memory and concentration among young adults aged 18-30.

Methods: A sample of 22 participants was surveyed using a structured questionnaire designed to assess trauma exposure, sleep quality, nightmare frequency and self-reported cognitive performance. Data were analysed to identify associations between trauma experiences, sleep disturbances and cognitive outcomes.

Results: Individuals with a history of trauma reported more frequent nightmares and poorer sleep quality. A notable association was observed between frequent nightmares and cognitive difficulties, particularly memory lapses and problems with concentration. Participants experiencing regular nightmares also reported higher levels of daytime impairment, indicating a link between nocturnal distress and reduced cognitive efficiency.

Conclusion: The findings highlight the significance of recognising nightmares not only as a symptom of trauma but also as a contributing factor to cognitive challenges. Integrating sleep-focused interventions into trauma-informed care may enhance cognitive well-being and overall functioning among affected individuals. This study adds to the growing evidence underscoring the interconnectedness of trauma, sleep and cognitive health.

Comparable studies

Other cross-sectional and survey studies on dreaming, most cited first.

Study Year Design Participants
Insomnia Symptoms, Nightmares, and Suicidal Ideation in a College Student Sample Undergraduate students at a large, public university in the southeastern United States 2011 Observational cross-sectional survey n = 583
Prevalence and Correlates of Frequent Nightmares: A Community-Based 2-Phase Study Middle-aged Hong Kong Chinese adults from the community, mean age 40.9 years (SD 5.5,... 2010 Cross-sectional survey with subsequent clinical evaluation (two-phase design) n = 8,558
Factors of home dream recall: a structural equation model Adults (general population sample) 2003 Cross-sectional survey with structural equation modeling n = 444
The Phenomenology of Lucid Dreaming: An Online Survey Respondents to an online survey about lucid dreams 2014 Online survey n = 684
Frequency of Lucid Dreaming in a Representative German Sample Representative sample of German adults 2011 Cross-sectional survey n = 919

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