Figure 1. Patient at 8 years. Interictal EEG during drowsiness showing
bilateral centrotemporal sharp slow waves with a left predominance.
Figure 2. Patient at 12 years. Interictal EEG while awake showing normal
background activity, spikes and waves and sharp slow waves over centroparietal
Figure 3. Patient at 30 years. Video-polygraphic
recording during prolonged reading aloud shows the correlation between jaw
myoclonus and generalized synchronous spikes and waves over both hemispheres
with bifrontal predominance. Diffusion of the muscular artifacts on the
temporal electrodes. Ictal discharges correlate with clinically evident
jaw jerks and stuttering. R. Mass; L. Mass.: right and left masseters; Mylo:
mylohyoid muscle; ECG: electrocardiogram; Resp: thoracic breathing.