PMC9403508_01
The signals from the left hemisphere is shown in blue and right hemisphere in red. Twenty sec epochs of electroencephalography (EEG) (average montage) demonstrate that the onset is from the left occipital region (a) with evolution and progression (b-f) to involve the right side. The patient's seizure correlated with the visual sensation of "flashing fireworks and broken red lights mirrors" in the patient's right visual hemifield.
fneur-13-953224-g0001.jpg
PMC9403508_01_fneur-13-953224-g0001.jpg
F1
Ictal EEG demonstrated a left occipital-onset focal seizure with right hemispheric involvement as it evolved (Figure 1).