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Fig. 18 : Sleep-wakefulness rhythm in a syndrome of decorticationContinuous recordings during 8 h (from 9 p.m. to 5 a.m.). Vertical arrows signal brief interruption of the recording. Abscissa: In black: EMG activity (biceps). Black dots and interrupted line: respiration (per min). The irregularity of respiration is marked by small vertical lines on the respiratory curve. White dots and solid line: Heart rate (per min). Crosses: rapid eye movements. Ordinate: Respiratory and heart rate (per min). Note the periodical appearance of RPS (25 per cent of the time) during which there are REM, cardiorespiratory variations and a total disappearance of the EMG. |