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...
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...
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...
Journal of Clinical Psychopharmacology
December 30, 2022
Helena Rogg, Mihai Avram, Felix Müller et al.
8 citations
Rogg, Helena MD; Avram, Mihai PhD; Müller, Felix MD; Junghanns, Klaus MD; Borgwardt, Stefan MD; Zurowski, Bartosz MD Author Information