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Photic driving of posterior background activity in periventricular nodular heterotopia (EEG)

The boxed areas indicate the bilateral photic driving of posterior background activity during 5 Hz (left) and 20 Hz (right) intermittent photic stimulation. (Contributed by Dr. Giorgio Battaglia.)

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Associated Disorders

  • Cerebellar hypoplasias
  • Early epileptic encephalopathy
  • Epilepsy
  • Fragile X syndrome
  • Frontonasal malformation
  • Hydrocephalus
  • Mega cisterna magna
  • Polymicrogyria
  • Syndactyly and limb malformations
  • West syndrome