(A) Single-cell discharge (unit 1 and unit 2) patterns (0.2 s bin) across sleep-wake episodes. Gray bars, NREM sleep; unfilled bars, active waking (AW).
(B) Enlarged view of the area indicated by a box in (A).
(C) Episodes of NREM and REM sleep.
(D) Episodes of AW and cataplexy (last AW episode unlabeled). Calibration: Hipp, 50 μV; EOG, 50 μV; EEG, 50 μV. Abbreviations as in Figure 2 and 3 legends.