Fig. 2.

EEG findings at day 19 (second EEG): 20 s per page, 19-channel EEG referenced to bipolar (upper window) and average (lower window) reference, showing intermittent, 4 Hz theta activity in the central-frontal region here with right more than left predominance. Background activity showing symmetric synchronous 10 Hz. Black lines: recordings from the right hemisphere. Blue lines: recordings from the left hemisphere. Green lines: midlines traces. Distance between orange vertical bars: 1 s. Electrical bridge artifact between Cz-Pz. Patient was awake during this period of recording but unresponsive (eyes open, exploring the space, not speaking, not following simple verbal orders). (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)