Description Format Details Source
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.
ID
Row ID
Shrew
Shrew ID (A
through F
)
Phase
Phase of sleep (DSW
=deep wave, LSW
=light wave, or REM
=dreaming)
Rate
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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