Heart rates for a sample of six tree shrews at each of three stages of sleep.
A data frame with 18 observations on the following 4 variables.
Shrew ID (
Phase of sleep (
LSW=light wave, or
Heart rate (beats per minute)
Heart rates were recorded for a sample of six tree shrews at each of three stages of sleep.
Berger, R. J. and Walker, J. M. (1972) "The Polygraphic Study of Sleep in the Tree Shrew," Brain, Behavior, and Evolution, v. 5, pp. 62
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