Focal motor seizure Focal atonic seizure 2020-02-24T14:54:22Z true true true Localized atonic seizure A focal seizure characterized at onset by sudden loss or diminution of muscle tone without apparent preceding myoclonic or tonic activity, typically lasting more than 500 ms but less than 2 seconds. It may involve the head, trunk, jaw or limb musculature. Sudden loss or diminution of muscle tone without apparent preceding myoclonic or tonic activity, typically lasting >500 milliseconds but < 2 seconds. It may involve the head, trunk, jaw or limb musculature. Localised atonic seizure Localised hypotonic seizure Segmental atonic seizure robinp https://www.epilepsy.com/learn/types-seizures/atonic-seizures https://www.ncbi.nlm.nih.gov/pubmed/20627778 Localized hypotonic seizure Partial atonic seizure Segmental hypotonic seizure Partial hypotonic seizure