PMC8379435_01
Two consecutive pages of EEG excerpts showing hypnopompic (post-arousal) hypersynchrony. There is an arousal from stage N2 sleep, and high amplitude (~150 microvolts) generalized rhythmic delta activity (1-1.5 Hz), with no evolution to suggest seizures. The discharge lasts 30 seconds. On video, patient has repositioning with neck extension, which was misinterpreted by her family as it resembles her motor tics.
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Hz lasting for 14-20 seconds and with no evolution [Fig. 1]. Her symptoms improved after treatment with risperidone, but the final diagnosis of a possible tic disorder is not completely clear.