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Figure 14 : Pontine animal with hypothalamic islandEEG recorded 89 days after operation. The four tracings represent uninterrupted consecutive activity. Above: Arousal followed by paradoxical sleep with typical monophasic spikes at the pontine level (PRF), eye movements (EM) and total depression of muscular activity in the neck (EMG). The fourth tracing represents.the end of paradoxical sleep. Each line represents 2 min of recording. Calibration 6 sec, 50 microV. |