The localizing value of mimic ictal semiology: A systematic review of the spectrum.

We performed a systematic review of the localization value of ictal mimic automatisms-including gelastic, dacrystic, fearful, ritualistic, and kissing semiology-in focal epilepsy. We performed a comprehensive literature search (Medline, EMBASE, Cochrane, Scopus) for patient-level studies, following a PRISMA and QUADAS2 approach. Patients with focal epilepsy displaying mimic automatism, defined as "stereotyped mimicry or behavior that resembles the usual way one expresses oneself to reflect an affect and that is not accompanied by the corresponding emotion" were included.