Body movements during sleep as a predictor of stage change


The number of body movements during the 10-min period of Stage 2 just preceding and following SWS and REM sleep were counted in 10 males for 9 to 11 nights each. There was a significantly greater number of 10-min periods of Stage 2 without movement before SWS than after SWS, before REM sleep, and after REM sleep. The last movements in Stage 2 preceding SWS occurred, in most instances, at least 5 min or more before this transition. These data suggest that body movement in Stage 2 may delay the transition from this stage to SWS.


  1. ALTSHULER, K. Z., & BREBBIA, D. R. Body movement artifact as a contaminant in psychophysiological studies of sleep. Psychophysiology, 1967, 3, 327–335.

    PubMed  Article  Google Scholar 

  2. BRAZIER, M. A. B. Electroencephalo-graphic studies of sleep in man. In J. B. Dillone and C. M. Ballinger (Eds.), Anesthesiology and the nervous system. University of Utah Press, 1966. Pp. 106–128.

    Google Scholar 

  3. DEMENT, W. C., & KLEITMAN, N. Cyclic variations in EEG during sleep and their relation to eye movements, body motility and dreaming. Electroencephalography & Clinical Neurophysiology, 1957, 9, 673–690.

    Article  Google Scholar 

  4. JOHNSON, L. C., NAITOH, P., LUBIN, A., & MOSES, J. Sleep stages and performance. In W. P. Colquhoun (Ed.), Aspects of human efficiency. London: English Universities Press, 1972. Pp. 81–100.

    Google Scholar 

  5. KAMI Y A., J. Behavioral, subjective and physiological aspects of drowsiness and sleep. In D. W. Fiske and S. R. Maddi (Eds.), The functions of varied experience. Homewood, Ill: Dorsey Press, 1961. Pp. 145–174.

    Google Scholar 

  6. LARSON, L. E., & WALTER, D. O. On automatic methods of sleep staging by EEG spectra. Electroencephalography & Clinical Neurophysiology, 1970, 28, 459–467.

    Article  Google Scholar 

  7. MARTIN, W. B., JOHNSON, L. C., VIGLIONE, S. S., NAITOH, P., JOSEPH, R. D., & MOSES, J. D. Pattern recognition of EEG-EOG as a technique for all-night sleep stage scoring. Electroencephalography & Clinical Neurophysiology, 1972, 32, 417–427.

    Article  Google Scholar 

  8. MONROE, L. J. Psychological and physiological differences between good and poor sleepers. Journal of Abnormal Psychology, 1967, 72, 255–264.

    PubMed  Article  Google Scholar 

  9. OTTO, E., KRAMER, H., & BRAUER, D. Korrelation zwischen Kbrperlagewechsel und skalierter EEG-Aktivitat bei schlafenden Menschen. Ergebnisse der Experimentellen Medizin, 1970, 3, 224–230.

    Google Scholar 

  10. RECHTSCHAFFEN, A., & KALES, A. (Eds.) Manual of standardized terminology, techniques, and scoring system for sleep stages of human subjects. National Institutes of Health Publication No. 204. Washington, D.C: U.S. Government Printing Office, 1968, 57 p.

    Google Scholar 

  11. SASSIN, J. F., & JOHNSON, L. C. Body motility during sleep and its relation to the K-complex. Experimental Neurology, 1968, 22, 133–144.

    PubMed  Article  Google Scholar 

  12. SCHIEBER, J. P., MUZET, A., & FERRIERE, P. J. R. Les phases d’activation transitoire spontanees au cours du sommeil normal chez l’homme. Archives des Sciences Physiologiques, 1971, 25, 443–465.

    PubMed  Google Scholar 

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Correspondence to L. C. Johnson.

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This study was supported in part by the Bureau of Medicine and Surgery, the Department of the Navy. Dr. A. Muzet was a NATO fellow and is now at Centre d’Etudes Bioclimatiques du C.N.R.S., Strasbourg, France. The opinions or assertions contained herein are the private ones of the authors and are not to be construed as official or as necessarily reflecting the views of the Department of the Navy. The authors thank M. Austin, R. Hilbert, D. Rhinehart, D. Irwin, and J. Yale for their careful data collection.

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Muzet, A., Naitoh, P., Townsend, R.E. et al. Body movements during sleep as a predictor of stage change. Psychon Sci 29, 7–10 (1972).

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  • Sleep Stage
  • NREM Sleep
  • Clinical Neurophysiology
  • Impulsive Noise
  • Sleep Record