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Ambiguous paroxysmal events: rhythmic movements

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Ambiguous paroxysmal events: rhythmic movements

Artifact caused by rhythmic movement can be difficult to distinguish from cortical pattern. Psychogenic nonepileptic seizures typically have less variability in frequency within a narrow range of duration. It has been shown that time-frequency analysis of data of the movements could be utilized as a diagnostic tool to differentiate between epileptic and nonepileptic convulsive seizure-like events. (Contributed by Dr. Selim R Benbadis.)

Associated Disorders

  • Clonic facial twitching
  • Decorticate or decerebrate posturing
  • Epileptic myoclonus
  • Focal seizures
  • Nonconvulsive status epilepticus
  • Nonepileptic facial movements
  • Nonepileptic myoclonus
  • Oral automatisms
  • Pseudosyncope
  • Segmental spinal cord myoclonus
  • Syncope
  • Tremors