The structure of night sleep and cardiac rhythm in patients suffering for many years from hypo- and akinesia.

The polygram of night sleep was studied in 3 patients, who due to a lesion to the CNS and peripheral nervous system were in a state of long-term akinesia and artificial lung ventilation. The cyclic organization of sleep and its transition from stage to stage, as a whole corresponded with those in healthy subjects. However, there was a general tendency in all patients to a reduction of sleep spindles. There was also a tendency to the stability of heart rate during night sleep. The relationship between delta-sleep and sleep spindles and motor activity is discussed.