Pflügers Archiv

, Volume 331, Issue 2, pp 113–123 | Cite as

Phasic changes in heart rate and respiration correlated with PGO-spike activity during REM sleep

  • W. Baust
  • E. Holzbach
  • O. Zechlin


The correlation between PGO-spike activity and phasic changes in heart rate and respiration during REM sleep has been studied in unrestrained cats.

PGO spiking is in 95% of the cases associated with phasic changes in heart rate. Different types of reactions in heart rate were observed. The type of reaction depends on the initial level of heart rate. A correlation between the type of reaction and the duration of spike group, or the number of spikes per polyspike, or the distance of the preceding or following spike did not exist. The changes in heart rate precede the spike by about one second.

If a spike discharge occurs in the first half of a respiratory period; the duration of the latter is increased in most of the cases. The interaction between phasic events with particular respect to a possible common pacemaker is discussed.

Key words

Sleep PGO-Spikes Heart Rate Respiration 


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Copyright information

© Springer-Verlag 1972

Authors and Affiliations

  • W. Baust
    • 1
  • E. Holzbach
    • 1
  • O. Zechlin
    • 1
  1. 1.Neurologische Klinik der Universität DüsseldorfDüsseldorfGermany

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