› › Phase Shifts Of The Human Circadian System And Performance Deficit During The Periods Of Transition














Phase Shifts of the Human Circadian System and Performance Deficit During the Periods of Transition. Ii. West-east Flight

Author : G. T. Hauty

Publisher :

Page : 11 pages

File Size : 43,44 MB

Release : 1965

Category :

ISBN :

Get eBook

Book Description

At periodic intervals throughout the biological day, biomedical assessments were made for a week prior to jet flight to Rome, for 12 days at Rome, and for a week following return to Oklahoma City. A primary shift of circadian periodicity was mainfested by physiological functions--rectal temperature, heart rate, etc. Increase in fatigue occurred during the primary period of transition and following return, but psychological performance was not impaired during either period. Duration of the fatigue was shorter than the time lag of the physiological phase shifts. (Author).



Phase Shifts of the Human Circadian System and Performance Deficit During the Periods of Transition

Author : G. T. Hauty

Publisher :

Page : 0 pages

File Size : 22,53 MB

Release : 1965

Category :

ISBN :

Get eBook

Book Description

At periodic intervals throughout the biological day, biomedical assessments were made for a week prior to jet flight to Manila, for 8 days of layover at Manila, and for a week following return. The rapid translocation effected primary phase shifts as follows: for rectal temperature and heart rate, 4 days; for palmar evaporative water loss, 8 days. The return flight effected a 1-day phase shift. Behavoral integrity was degraded, although to a lesser extent after return. Duration of behavioral impairment was much shorter than the lag time of physiological phase shifts. (Author).



PHASE SHIFTS OF THE HUMAN CIRCADIAN SYSTEM AND PERFORMANCE Deficit During the Periods of Transition. III. NORTH-SOUTH FLIGHT.

Author : G. T. Hauty

Publisher :

Page : 11 pages

File Size : 18,11 MB

Release : 1965

Category :

ISBN :

Get eBook

Book Description

At periodic intervals throughout the biological day, biomedical assessments were made for a week prior to jet flight to Santiago, Chile, for 12 days at Santiago, and for a week following return to Washington, D.C. Although previous East-West and West-East flight effected a primary shift of circadian periodicity, as manifested by physiological functions, the North-South flight did not. There was, however, a significant increase of subjective fatigue, as in the other flights. The significant impairment of psychological performance produced by the East-West but not the West-East flight was not shown by the North-South flight. (Author).