Midline theta rhythm (Ciganek)

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Synonyme: Ciganek rhythm

  • Rhythmic train of 5-7Hz (6Hz)
  • Duration: <20sec
  • Smooth, sinusoidal, arch-like, spiky appearance (>50uV)
  • Amplitude waxes and wanes
  • Vertex (Cz)
    • Fz > Pz >> parasagittal electrodes
  • Wakefulness (concentration) and drowsiness
  • Children and adults
  • Not associated with epilepsy


Midline theta rhythm (Ciganek): sinusoidal theta rhythm in Fz (source)

Midline theta rhythm (source).png
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