Combined effects of altitude and high temperature on complex performance.

Chiles, W.D.; Iampietro, P.F.; Higgins, E.A.; Vaughan, J.A.; West, Georgetta; Funkhouser, G.E.; Civil Aeromedical Institute

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Combined effects of altitude and high temperature on complex performance.

1971-04-01
By Chiles, W.D. ; Iampietro, P.F. ; Higgins, E.A. ; ...

[PDF-758.54 KB]

English

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Details:

Creators:

Chiles, W.D. ; Iampietro, P.F. ; Higgins, E.A. ; Vaughan, J.A. ; West, Georgetta ; ... More +

Chiles, W.D. ; Iampietro, P.F. ; Higgins, E.A. ; Vaughan, J.A. ; West, Georgetta ; Funkhouser, G.E. Less -
Corporate Creators:

Civil Aeromedical Institute
Corporate Contributors:

United States. Office of Aviation Medicine
Subject/TRT Terms:

[+]

Air Pilots Airplanes--Monitoring Altitude Altitude--Physiological Effect Arithmetic Atmosphere Body Temperature Color Colors Environment Error Analysis Errors Experiments Flight Crews Green Heart Beat Heart Rate Heat Heat--Physiological Effect High Temperature Human Subject Testing Humidity Humidity--Physiological Effect Hypoxia Monitoring Motor Ability Motor Skills Percent Percentage Performance--Measurement Performance--Testing Performance Measurement Performance Tests Physiological Aspects Pressure Reaction Time Red Signal Lights Skin Supersonic Aircraft Supersonic Planes Task Analysis Temperature Tracking Systems Training Simulators
Publication/ Report Number:

FAA-AM-71-17 ; DOT/FAA/AM-71/17

FAA-AM-71-17 ; DOT/FAA/AM-71/17 Less -
Resource Type:

Tech Report
Geographical Coverage:

United States
Edition:

OAM report.
Corporate Publisher:

Civil Aerospace Medical Institute
Abstract:

Nine well-trained subjects were tested on a complex performance device designed to assess functions of relevance to aircrew activities. The tests, which involved tracking, monitoring, and mental arithmetic, were performed during exposure to altitude (14,000 feet) and heat (60 C.) both singly and in combination.

Several physiological measures were taken. Exposure durations were 30 minutes for each condition with both pre- and post-testing. The only clear-cut effects of the conditions were significant differences across the environmental conditions on a perceptual-motor tracking task related to manual aircraft control. Altitude was clearly a more powerful variable than temperature in this study. This was evidenced by the fact that performance under the temperature-plus-altitude and the altitude-only conditions were approximately the same; performance under the temperature-only condition was significantly better than performance for either of the other two conditions.

There was some evidence that the two environments in combination produced a persistent effect on performance that did not dissipate with return to normal conditions. Measured physiological functions of the subjects were within the tolerable range.
Format:

PDF
Collection(s):

FAA Civil Aerospace Medical Institute US Transportation Collection
Main Document Checksum:

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urn:sha256:f5473a420fad7b7e48144f099f08a1f8724b9d7f97ef1f99dfe670a57d9f3df3
Download URL:

https://rosap.ntl.bts.gov/view/dot/20937/dot_20937_DS1.pdf
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Combined effects of altitude and high temperature on complex performance.

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