Abstract
The basic rest-activity cycle (BRAC) is a physiological periodicity in the functioning of the nervous system of homoiotheraml animals. First detected as a variation in the concomitants of sleep in infants, it involves an alternation of EEG patterns, with a high-voltage slow activity (HVSA) during the rest phase and a low-voltage fast activity (LCFA) during the activity phase. The latter is accompanied by certain somatic and visceral manifestations-changes in heart rate and in respiration movements (REMs), and relaxation of other muscle groups. In human infants, the BRAC is completed in 55–60 minutes, progressively increasing to 85–90 minutes in adult man.
Keywords
- Activity Phase
- Muscle Group
- Sleep Time
- Activity Cycle
- Respiration Movement
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.
This is a preview of subscription content, access via your institution.
Buying options
Tax calculation will be finalised at checkout
Purchases are for personal use only
Learn about institutional subscriptionsAuthor information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1970 Plenum Press, New York
About this chapter
Cite this chapter
Kleitman, N. (1970). The Basic Rest — Activity Cycle. In: Wulfsohn, N.L., Sances, A. (eds) The Nervous System and Electric Currents. Springer, Boston, MA. https://doi.org/10.1007/978-1-4684-1836-1_21
Download citation
DOI: https://doi.org/10.1007/978-1-4684-1836-1_21
Publisher Name: Springer, Boston, MA
Print ISBN: 978-1-4684-1838-5
Online ISBN: 978-1-4684-1836-1
eBook Packages: Springer Book Archive