Figure 2
(A, B) Two EEGs that correlate with two of the patient's room tilt illusion spells. Each EEG demonstrates a brief burst of bifrontally predominant polyspike-and-wave discharges. Note that the patient pressed on the event push button a few seconds afterwards. Display is presented at 20 seconds per page; LF: 1 Hz; HF: 35 Hz; sensitivity: 15 μV/mm.