The Rhythmic Cycles in Man

Abstract

There is ample evidence to accept the concept of multiplicity of cyclic and rhythmic functions in plants, animals and man. These vary from the ultradian and circadian to seasonal and annual cycles. There are numerous factors involved in these cyclic phenomena, from photostimulation (day-night cycle) to exhaustion-replenishment feedback mechanisms. Man's ability to override the rhythms is an important factor which allows him to undertake many activities and not be limited by the rhythmic nature of these underlying mechanisms. The override capability enables him to maintain his work performance efficiently providing he is motivated and interested. Thus motivation may be more important than the circadian rhythm which can be disrupted but restored easily with the proper stimulation. The report reviews research in this field and notes areas for future research and names key investigators.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1975
Accession Number
ADA013853

Entities

People

  • Herbert Pollack

Organizations

  • Federation of American Societies for Experimental Biology

Tags

Communities of Interest

  • Biomedical

DTIC Thesaurus Topics

  • Air Force
  • Aircrafts
  • Applied Psychology
  • Biological Rhythms
  • Biological Sciences
  • Body Temperature
  • Circadian Rhythms
  • Health Services
  • Heart Rate
  • Human Behavior
  • Human Factors Engineering
  • Human Resources
  • Jet Aircraft
  • Medical Personnel
  • Psychology
  • Psychophysiology
  • Scientific Research

Readers

  • Circadian Sleep-Wake Regulation and Chronobiology
  • Neuroscience
  • Systems Analysis and Design