Figure 2
Patient II:2. EEG showing slow background activity in the theta-delta range and low- and mid-voltage spikes, spike- and polyspike-wave discharges, with fast spike components, both diffuse or multifocal, predominant over the centro-parieto-temporal regions. Note myoclonic jerks recorded over both deltoid muscles (EMG1: right deltoid; EMG2: left deltoid).