Assessing Triggers of Posttrauma Nightmares.

Area of Science:

• Psychology
• Sleep Medicine
• Trauma Studies

Background:

• Posttrauma nightmares are common in trauma survivors but their underlying mechanisms remain unclear.
• Understanding triggers for these nightmares is crucial for developing effective interventions.

Purpose of the Study:

• To investigate predictors of posttrauma nightmare occurrence in female college students reporting nightmares related to sexual trauma.
• To examine the influence of presleep cognitive arousal and sleep latency on nightmare frequency.

Main Methods:

• A sample of 27 female college students with frequent sexual trauma-related nightmares participated.
• Participants completed daily sleep diaries for six days, measuring potential triggers, sleep quality, and nightmare occurrence.
• Multilevel modeling was used to analyze the nested data structure.

Main Results:

• Presleep cognitive arousal was a significant predictor of posttrauma nightmare occurrence (γ10 = 0.58, p = .006).
• Increased sleep latency (SL) also predicted nightmare occurrence (γ20 = 0.76, p < .001).
• Presleep cognitive arousal moderated the relationship between sleep latency and nightmare occurrence (γ30 = 0.67, p = .048).

Conclusions:

• The study identifies presleep cognitive arousal and sleep latency as key predictors of posttrauma nightmares.
• The interaction between arousal and delayed sleep onset suggests the pre-sleep period is critical for nightmare generation.
• Findings offer insights into potential targets for therapeutic interventions aimed at reducing posttrauma nightmares.