Experimental Studies Of Prolonged Wakefulness

Item

Title
Experimental Studies Of Prolonged Wakefulness
Date
1955
Index Abstract
Coming Soon
Photo Quality
Complete
Report Number
WADC TR 55-395
Corporate Author
Materials Laboratory
Laboratory
Aero Medical Laboratory
Extent
21
PB Number
PB121393
NTRL Accession Number
AD100698
Identifier
AD0100698
Access Rights
Unknown
Distribution Classification
1
DTIC Record Exists
No
Distribution Change Authority Correspondence
AFWAL LTR
Distribution Conflict
Fix
Abstract
Two experiments were carried out concerning the effects of prolonged wakefulness and of fatigue on performance of psychomotor and psychological tasks. The first experiment involved four subjects each of whom sat individually in an aircraft cockpit for 56 hours. During this time, measures of reaction time and alertness were taken, and, at the end of the experiment, two of the subjects flew ILAS passes in a Link trainer. The reaction time and the alertness measures reflected considerable variability in the attentiveness of the subjects. The performance in the Link trainer was judged to be within the limits of acceptability. The second experiment involved the assessment of the effects of 30 hours of wakefulness with continuous work (painting a barracks) on the performance of 15 subjects on a psychological and pscyhomotor task. In addition, the effects of two different drugs, d-ampthetamine sulphate and cortisone, were compared with those of a placebo. The psychological test involved summing of rows of figures, and the psychomotor test involved arm-hand steadiness. Each of these tests distinguished, to some extent, the two drug groups from the placebo group. It was concluded that two drugs improve perfromance on the addition test, whereas they tended to decrease arm-hand steadiness as a function of time.
Report Availability
Full text available
Date Issued
1955-12
Provenance
Hunt Library, Embry-Riddle Aeronautical University
Type
report
Format
1 online resource
Creator
Chiles, Walter D.
Media
WADCTR55-395.pdf