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Ambiguous paroxysmal events: harmony

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Ambiguous paroxysmal events: harmony

Frequency of photic stimulation driving can be equivalent to stimulus frequency (f), harmonic driving (nf), and subhormonic driving (f/n), where n is 2 or greater.This driving is not visual evoked potentials that occur with stimulation less than 5 Hz. In this EEG, the driving is equivalent to frequency and showed no evolution. (Contributed by Dr. Selim R Benbadis.)

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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