Accession Number : AD0718125

Title :   Bandwidth Reduction of Sleep Information.

Descriptive Note : Technical rept.,

Corporate Author : TEXAS UNIV AUSTIN ELECTRONICS RESEARCH CENTER

Personal Author(s) : Welch,A. J. ; Richardson,Philip C. ; Thomas,Cecil W. ; Aldredge,Joanne M.

Report Date : 10 JUL 1970

Pagination or Media Count : 179

Abstract : Many important space and military missions require maximal alertness which is dependent on adequate amounts of rest and sleep. In order to study sleep-wakefulness patterns in realistic space and military situations, it is necessary to monitor the level of arousal with simplified reliable band-limited devices. The limited time bandwidth available for the transmission of sleep information necessitates the development of a technique for data compression. This report describes the possibility of extracting sleep information from heart rate data. Several features of heart rate which contain sleep information are computed and analysis of variance is used to indicate the suitability of these measures in the pattern recognition of sleep stages from heart rate data. (Author)

Descriptors :   (*SLEEP, MONITORS), (*CARDIOVASCULAR SYSTEM, SLEEP), DATA, DATA PROCESSING, PHYSIOLOGY, PATTERN RECOGNITION, ANALYSIS OF VARIANCE, PSYCHOPHYSIOLOGY

Subject Categories : Biomedical Instrumentation and Bioengineering

Distribution Statement : APPROVED FOR PUBLIC RELEASE