Why We Nap pp 71-81 | Cite as

The Timing and Structure of Spontaneous Naps

  • Scott S. Campbell

Abstract

Napping behavior in adult humans has often been considered to reflect a type of sleep that is fundamentally different from major sleep episodes taken at night (Dinges and Broughton, 1989; Kleitman, 1963; Wever, 1979). They are differentiated not only quantitatively, but qualitatively. Whereas major sleep is acknowledged to be the expression of an endogenously generated, regularly recurring, biological need, napping has generally been considered to be a compensatory response to previous sleep loss or a behavioral reflection of boredom.

Keywords

Body Core Temperature Nocturnal Sleep Circadian Phase Sleep Episode Daytime Sleep 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. Broughton R (1975): Biorhythmic fluctuations in consciousness and psychological functions. Can Physiol Rev 16:217–239Google Scholar
  2. Campbell S (1984): Duration and placement of sleep in a “disentrained” environment. Psychophysiology 21((1):106–113CrossRefGoogle Scholar
  3. Campbell S, Zulley J (1985): Ultradian components of human sleep/wake patterns during disentrainment. In: Ultradian Rhythms in Physiology and Behavior, Schulz H, Lavie P, eds. New York: Springer-Verlag, pp 234–255CrossRefGoogle Scholar
  4. Campbell S, ai]Zulley J (1989a): Napping in time-free environments. In: Sleep and Alertness: Chronobiological, Behavioral and Medical Aspects of Napping, Dinges D, Broughton R, eds. New York: Raven Press, pp 121–138Google Scholar
  5. Campbell S, Zulley J (1989b): Evidence for circadian influence on human slow wave sleep during daytime sleep episodes. Psychophysiology 26(5):580–585CrossRefGoogle Scholar
  6. Colquhoun W, ed (1971): Biological Rhythms and Human Performance. New York: Academic PressGoogle Scholar
  7. Czeisler C, Weitzman E, Moore-Ede M, Zimmerman J, Knauer R (1980): Human sleep: Its duration and organization depend on its circadian phase. Science 210:1264–1267CrossRefGoogle Scholar
  8. Dinges D, Broughton R, eds (1989): Sleep and Alertness: Chronobiological, Behavioral and Medical Aspects of Napping. New York: Raven PressGoogle Scholar
  9. Hume K, Mills J (1974): Rhythms of REM and slow wave sleep in subjects living on abnormal time schedules. Waking Sleeping 3:291–296Google Scholar
  10. Kleitman N (1963): Sleep and Wakefulness. Chicago: University of Chicago PressGoogle Scholar
  11. Knowles J, MacLean A, Salem L, Vetere C, Coulter M (1986): Slow-wave sleep in daytime and nocturnal sleep: An estimate of the time course of “Process S.” J Biol Rhythms 1:303–308CrossRefGoogle Scholar
  12. Lavie P, Scherson A (1981): Ultrashort sleep-waking schedule. I. Evidence of ultradian rhythmicity in “sleepability.” Electroencephalogr Clin Neurophysiol 52:163–174CrossRefGoogle Scholar
  13. Moore-Ede M, Czeisler C, eds (1984): Mathematical Models of the Circadian Sleep-Wake Cycle. New York: Raven PressGoogle Scholar
  14. Nakagawa Y (1980): Continuous observation of EEG patterns at night and in daytime of normals subjects under restrained conditions. I. Quiescent state when lying down. Electroencephalogr Clin Neurophysiol 49:524–537CrossRefGoogle Scholar
  15. Schaefer K, Clegg B, Carey C, Dougherty J, Weybrew B (1967): Effect of isolation in a constant environment on periodicity of physiological functions and performance levels. Aerosp Med 38:1002–1018Google Scholar
  16. Stahl M, Orr W, Bollinger C (1983): Postprandial sleepiness: Objective documentation via polysomnography. Sleep 6((1):29–35Google Scholar
  17. Webb W (1978): Sleep and naps. Specul Sci Technol 1:313–318Google Scholar
  18. Webb W, Agnew H (1971): Stage 4 sleep: Influence of time course variables. Science 174:1354–1356CrossRefGoogle Scholar
  19. Webb W, Agnew H (1974): Sleep and waking in a time-free environment. Aerosp Med 45:617–622Google Scholar
  20. Wever R (1979): The Circadian System of Man. New York: Springer-VerlagCrossRefGoogle Scholar
  21. Zulley J (1988): The four-hour sleep wake cycle. Sleep Res 17:403Google Scholar
  22. Zulley J (1980): Distribution of REM sleep in entrained 24 hour and free-running sleep-wake cycles. Sleep 2:377–389Google Scholar
  23. Zulley J, Campbell S (1985a): Napping behavior during “spontaneous internal desynchronization”: Sleep remains in synchrony with body temperature. Hum Neurobiol 4:123–126Google Scholar
  24. Zulley J, Campbell S (1985b): The coupling of sleep-wake patterns with the rhythm of body temperature. In: Sleep’ 84, Koella W, Ruether E, Schulz H, eds. New York: Gustav Fischer Verlag, pp 81–85Google Scholar

Copyright information

© Springer Science+Business Media New York 1992

Authors and Affiliations

  • Scott S. Campbell

There are no affiliations available

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