Use of Spectral Analyses in the Study of Human Behavioral and Physiological Response Measures.
Abstract
In assessing changes in behavior, such as those found with sleep loss, the principal problem is one of measurement. The objective of the series of studies described in the report was to develop and validate a measurement and analysis technique for examining human responses occurring through time. In the six studies reported, power spectra were computed for experimental data, along with coherence analyses and tests of significance. Behavioral results were compared with one another and with simultaneously recorded physiological data. The data from these studies indicate there are several rather stable biological rhythms, or oscillations, which occur in performance patterns. Several oscillations were identified in addition to the large (1.1 cycles/day) oscillation which corresponds to circadian rhythm. Oscillations of weaker intensities were found at 4.5, 9.0 (close to the work/rest cycle), and 18 cycles/day. The imposition of mild stress conditions was found, in many instances, to have a significant effect on the character of the basic biorhythms. It is felt that the use of time series data, in which rhythmicities in performance are identified and studied as the organism is exposed to unusual or stressful environments, represents a relatively new and potentially fruitful approach to behavioral research. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1971
- Accession Number
- AD0732951
Entities
People
- James F. Parker Jr.
- Martin G. Every
- Vita West