FIGURE 2.

Patient 2. (A) brief absence seizure. (B) photoparoxysmal response to 15 Hz intermittent light stimulation. (C) myoclonic jerks occurring during right‐hand extension without obvious EEG correlates. (D) back averaging analysis (53 epochs) demonstrating a positive deflection on the C3 EEG electrode preceding by 15 ms the onset of the EMG burst recorded from contralateral wrist muscles.