Characteristic change in EEG is found in ?
A. Prion disease.
Change seen in the picture above represents burst suppression on EEG.
The pattern is found in patients with inactivated brain states, such as from general anesthesia, coma, or hypothermia. This pattern can be physiological, as during early development, or pathological, as in diseases such as Ohtahara syndrome.
Bursts are identifiable on EEG readings by their high amplitude (75-250μV), typically short period of 1–10 seconds, and have frequency ranges of 0–4 Hz (δ) and 4–7 Hz (θ).
Suppression episodes are identifiable by their low amplitude (< 5μV) and typically long period (> 10s).