Reactivating a relaxation exercise during sleep to influence cortical hyperarousal in people with frequent nightmares – a randomized crossover trial
bioRxiv (Cold Spring Harbor Laboratory) March 13, 2025 Clara Sayk, Alicia Probst, F. F. Lange et al. preprint
Study Objectives High-frequency EEG activity during sleep (cortical hyperarousal), is a transdiagnostic feature across psychiatric disorders, including nightmare disorder. It is discussed as a target of intervention; however, specific treatment options are yet unavailable. We tested whether exposure to relaxation-associated odor cues during sleep would reduce cortical hyperarousal, i.e. beta...