Respiratory rhythm multistability during sleep-wake states.
Respiratory period (RP) changes occurring during sleep-waking states were studied during 5- to 8-h recording sessions in chronic cats. RP distribution was clearly trimodal, the shortest mode occurring essentially during alert wakefulness, the largest mode during slow wave sleep and the intermediate mode during drowsy wakefulness. Immediate shifts were observed at instant awakening, whereas after an EEG arousal lasting a few seconds, the RP could remain short for several minutes. Results suggest that the respiratory pattern generator depends upon several attractors.
Vibert
J F
JF
Laboratoire de Physiologie, CHU St Antoine, Paris, France.
Foutz
A S
AS
Caille
D
D
Hugelin
A
A
D000818:Animals; D001921:Brain / Q000502:physiology*; D002415:Cats; D004569:Electroencephalography; D012119:Respiration; D012890:Sleep / Q000502:physiology*; D014851:Wakefulness / Q000502:physiology*