Ictal Blinking in Focal Seizures: insights from SEEG recordings

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Ictal blinking is an oculomotor sign occurring in various types of epilepsies [1]. A blink consists of tonic closure of upper and lower eyelid, co-occurring with downward movement of the eyes (contraction of orbicularis oculi and levator palpebrae superiorus muscles) [2], distinct from eyelid myoclonia observed in generalized epilepsy (associated with upward movement of eyes and extension of the head) or eyelid clonia observed in facial motor focal seizures (associated with other facial muscles contraction).

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