Abstract
When man or animals live in an environment without time-cues, their sleep-wake cycle continues to exhibit a well-defined rhythm whose period (τ) is usually somewhat different from 24 h (e.g. rat: Borbély and Neuhaus 1978, man: Wever 1979). The sleep-wake cycle consitutes therefore a true circadian rhythm which is controlled by an oscillator. Research in circadian rest-activity rhythms is based heavily on motor activity recordings, whereas long-term measurements of sleep have been rarely undertaken. Waking is a prerequisite for motor activity, although motor activity is not always present during waking. Particularly when wheel-running is used as the activity measure, inactivity cannot be equalled to rest or sleep. Long-term recordings of movement activity with a transducer under the animal’s cage provide a close approximation of the sleep-wake rhythm (Borbély and Neuhaus 1978).
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Akerstedt T, Fröberg JE (1977) Psychophysiological circadian rhythm in women during 72 h sleep deprivation. Waking Sleep 1: 378–394
Aschoff J, Giedke H, Pöppel H, Wever R (1979) The influence of sleep-interruption and of sleep-, deprivation on circadian rhythm inhuman performance. In: Colquhoun WP (ed) Aspects of human efficiency. English Univ Press, London pp 135–150
Borbély AA (1981) The sleep process: circadian and homeostatic aspects. In: Obál F, Benedek G (eds) Environmental physiology, Advances in physiological sciences, vol 18. Pergamon Press, Oxford, pp 85–91
Borbély AA (1982) Sleep regulation: circadian rhythm and homeostasis. In: Ganten D, Pfaff D (eds) Current topics in neuroendocrinology, vol 1. Springer, Berlin Heidelberg New York pp 83–103
Borbély AA, Neuhaus HU (1978) Circadian rhythm of sleep and motor activity in the rat during skeleton photoperiod, continuous darkness and continuous light. J Comp Physiol. 128: 37–46
Borbély AA, Neuhaus HU (1979) Sleep-deprivation: effects on sleep and EEG in the rat. J Comp Physiol 133: 71–87
Borbély AA, Tobler I (1980) The search for an endogenous “sleep-substance”. Trends Pharmacol Sci 1:356–358
Borbély AA, Baumann F, Brandeis D, Strauch I, Lehmann D (1981) Sleep-deprivation: effect on sleep stages and EEG power density in man. Electroencephalogr Clin Neurophysiol 51: 483–493
Fencl V, Koski G, Pappenheimer JR (1971) Factors in cerebrospinal fluid from goats that affect sleep and activity in rats. J Physiol 216: 569–589
Gulevich G, Dement W, Johnson L (1966) Psychiatric and EEG observations on a case of prolonged (264 h) wakefulness. Arch Gen Psychiatry 15: 29–35
Ibuka N, Kawamura H (1975) Loss of circadian rhythm in sleep-wakefulness cycle in the rat by suprachiasmatic nucleus lesions. Brain Res 96: 76–81
Krueger JM, Bacsik J, Garcia-Arraras J (1980) Sleep-promoting material from human urine and its relation to factor S from brain. Am J Physiol 283: E116–E123
Pappenheimer JR, Koski G, Fencl V, Kanovsky ML, Krueger J (1975) Extraction of sleep-promoting factor S from cerebrospinal fluid and from brains of sleep-deprived animals. J Neurophysiol 38: 1299–1311
Wever RA (1979) The circadian system of man. Springer, Berlin Heidelberg New York
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1982 Springer-Verlag Berlin · Heidelberg
About this paper
Cite this paper
Borbély, A.A. (1982). Circadian and Sleep-Dependent Processes in Sleep Regulation. In: Aschoff, J., Daan, S., Groos, G.A. (eds) Vertebrate Circadian Systems. Proceedings in Life Sciences. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-68651-1_25
Download citation
DOI: https://doi.org/10.1007/978-3-642-68651-1_25
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-68653-5
Online ISBN: 978-3-642-68651-1
eBook Packages: Springer Book Archive