Free-Running Human Circadian Rhythms in Svalbard
Open Access
- 1 June 1979
- journal article
- research article
- Published by Walter de Gruyter GmbH in Zeitschrift für Naturforschung C
- Vol. 34 (5-6) , 470-473
- https://doi.org/10.1515/znc-1979-5-626
Abstract
The body temperature, activity-rest time, electrolytes of urine samples and mood were measured in 2 persons for 19 days under continuous light conditions in the arctic (vicinity of Ny Alesund, Svalbard-Spitsbergen). For temperature recording a new thermoprobe and a portable printer were used. Possible week Zeitgeber of the 24 h day did not synchronize the circadian system, since circadian rhythms of about 26 h were found. These results open up the possibility of studying effects of drugs on the circadian system of humans under Svaldbard conditions.Keywords
This publication has 1 reference indexed in Scilit:
- Depression and daily temperatureActa Psychiatrica Scandinavica, 1976