Properties of Human Sleep-Wake Cycles: Parameters of Internally Synchronized Free-Running Rhythms
نویسندگان
چکیده
منابع مشابه
Distribution of REM sleep in entrained 24 hour and free-running sleep--wake cycles.
One hundred thirty sleep episodes of 6 subjects, living on a natural 24 hr day, were compared with 116 sleep times of the same subjects living isolated from external time cues. The polygraphic sleep recordings were analyzed for the distribution of REM sleep under both conditions. Additionally, the relationship between body temperature and REM sleep was analyzed by comparing sleep episodes in wh...
متن کاملForced splitting of human sleep in free-running rhythms.
The assumption of polyphasic sleep/wake regulation is based on the occurrence of nap-sleep at specific phase positions in the circadian cycle. Further support would be the split of the normal long major sleep episode into shorter components. Evidence for this hypothesis comes from the discovery of bimodal distribution in sleep duration. An experimental approach to test this hypothesis has been ...
متن کاملpatient sleep- wake rhythms in hospital
for most people iterance to hospital is a disturbing experience and expects that nurses be sensitive to patient's physical, emotional and social need at admission. whereas interrupt of sleep due to physical, psychological and social status damage, knowing about effective mechanisms in retention and disturbance of sleep – wake cycles help nurses to make natural criteria for their patient&ap...
متن کاملFree-running human circadian rhythms in Svalbard.
The body temperature, activity-rest time, electrolytes of urine samples and mood was measured in two persons a 19 day period under continuous light conditions in the arctic (vicinity of Ny Alesund, Svalbard-Spitsbergen). For temperature recording a new thermoprobe and a portable printer was used. Possible week Zeitgeber of the 24 hour day did not synchronize the circadian system, since circadia...
متن کاملNeuroscience Reviews: Sleep-Wake Cycles
Sleep is a ubiquitous physiological process generated by the brain of vertebrate and invertebrate species. The widespread phenomenon of sleep suggests a dynamic process of brain activity that has evolved to have a functional relationship to metabolism, reproduction and/or survival; a phenomenon that is clearly species-and age-specific. In this brief review, we discussed the neurobiology of slee...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Sleep
سال: 1984
ISSN: 0161-8105,1550-9109
DOI: 10.1093/sleep/7.1.27