Regulation of circulation and breathing during sleep: experimental aspects.
Both circulation and breathing show basic differences in regulation between synchronized sleep and desynchronized sleep. Closed-loop operations of automatic control mechanisms during synchronized sleep ensure an efficient and steady regulation of such functions as in wakefulness, although at a lower level of energy expenditure. In contrast, a change in the mode of regulation of automatic control mechanisms, consisting in a prevalence of open-loop operations, underlies the functional inconsistency of effector activities during desynchronized sleep.
D001775:Blood Circulation; D006439:Hemodynamics; D006801:Humans; D012119:Respiration; D012894:Sleep Stages / Q000502:physiology*