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Clara Sayk

3 papers in the library · 6 citations · publishing 2024-2026

Papers

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Reactivating a Relaxation Exercise During Sleep to Influence Cortical Hyperarousal in Individuals With Frequent Nightmares

Journal of Sleep Research September 9, 2026 Clara Sayk, A. Probst, F. Lange et al.

High-frequency EEG activity during sleep, reflecting cortical hyperarousal, has recently been incorporated into aetiology models of nightmares. However, its precise role remains insufficiently understood because experimental approaches to manipulate hyperarousal during sleep are limited. In the present study, we investigated whether re-presenting a relaxation-associated odour cue during sleep...

Imagery rehearsal therapy for the treatment of nightmares in individuals with borderline personality disorder – A pilot study

Journal of Psychiatric Research December 28, 2024 Clara Sayk, Nicole Koch, Janine Stierand et al. 6 citations

Insomnia and nightmares are present in up to 45 % of individuals with borderline personality disorder (BPD) and can contribute to challenges with emotion regulation, low sleep quality, dream anxiety, increased arousal and self-control. Despite their prevalence, nightmares are usually not addressed in classical BPD treatment. Imagery rehearsal therapy (IRT) is considered first in line treatment...

Cortical hyperarousal in individuals with frequent nightmares.

Journal of Sleep Research April 1, 2024 Clara Sayk, Sophia Saftien, Nicole Koch et al.

Nightmares are common among the general population and psychiatric patients and have been associated with signs of nocturnal arousal such as increased heart rate or increased high-frequency electroencephalographic (EEG) activity. However, it is still unclear, whether these characteristics are more of a trait occurring in people with frequent nightmares or rather indicators of the nightmare...