Fig. 1
From: Disorders of Arousal in adults: new diagnostic tools for clinical practice
Polysomnographic characteristics of a patient with Disorders of Arousal (DOA) and a healthy adult. a: The hypnogram shows an excessive amount of Slow Wave Sleep (SWS) interruptions, frequently characterized by slow/mixed post-arousal EEG activity. Three SWS interruptions are accompanied by complex behavioral manifestations defining parasomniac episodes (lower panel). During such interruption, the polysomnography reveals slow or mixed sleep-wake features, with motor and autonomic activations (upper panel). b: By contrast, SWS continuity is preserved in healthy subjects with rare interruptions (lower panel). The polysomnography reveals a fast post-arousal EEG activity during SWS interruption (upper panel)