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Psychosomatic Medicine 32:189-200 (1970)
© 1970 American Psychosomatic Society

Sleep Patterns Following 205 Hours of Sleep Deprivation

ANTHONY KALES MD1, TJIAUW-LING TAN MD1, EDWARD J. KOLLAR MD1, PAUL NAITOH PhD1, TERRY A. PRESTON BA1, and EDWARD J. MALMSTROM PhD1

1 Sleep Research and Treatment Facility, Department of Psychiatry and Brain Research Institute, UCLA School of Medicine, Los Angeles, Calif., Navy Medical Neuropsychiatric Research Unit, San Diego, Calif.

Address for reprint requests: Dr. A. Kales, Sleep Research and Treatment Facility, UCLA Medical Center, Los Angeles, Calif 90024

The aim of the present study was to compare sleep patterns prior to and following prolonged total sleep deprivation (205 hr) in 4 subjects. Following 205 hr of deprivation, the percentages of Stage 4 and the rapid-eye-movement stage of sleep were increased while the percentage of Stage 2 sleep was decreased on all 3 recovery nights. On the first 2 recovery nights, marked alterations in rapid-eye-movement sleep were noted in addition to the increases in rapid-eye-movement stage percentage, including 2 sleep onset rapid-eye-movement periods, decreased rapid-eye-movement latencies, and decreased rapid-eye-movement intervals between earlier rapid-eye-movement periods. These alterations were most marked in the subject who experienced the greatest psychologic disturbance during the deprivation period. Differences in Stage 4 and rapid-eye-movement stage rebounds as well as the possibility of a relationship between certain psychologic disturbances and rapid-eye-movement pattern alterations are considered.

Submitted on September 6, 1968
Revised on August 11, 1968




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