Alcohol and disorientation-related responses. IV, Effects of different alcohol dosages and display illumination tracking performance during vestibular stimulation.

Gilson, Richard D.; Schroeder, David J.; Collins, William E.; Guedry, Frederick E.; Civil Aeromedical Institute

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Alcohol and disorientation-related responses. IV, Effects of different alcohol dosages and display illumination tracking performance during vestibular stimulation.

1971-07-01
By Gilson, Richard D. ; Schroeder, David J. ; Collins, William E. ; ...

[PDF-639.28 KB]

English

Details

Details:

Creators:

Gilson, Richard D. ; Schroeder, David J. ; Collins, William E. ; Guedry, Frederick E.

Gilson, Richard D. ; Schroeder, David J. ; Collins, William E. ; Guedry, Frederick E. Less -
Corporate Creators:

Civil Aeromedical Institute
Corporate Contributors:

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

[+]

Acceleration (Mechanics) Aeronautical Instruments Air Pilots Alcohol Effects Alcohol Use Angular Acceleration Blood Alcohol--Analysis Blood Alcohol Levels Blood Analysis Calibration Dark Adaptation Depth Perception Descriptive Statistics Distance Perception Drinking Of Alcoholic Beverages--Physiological Effect Dynamic Tests Eye Eye-hand Coordination Eye Fixations Eye Location Eye Movements Flight Simulators Gas Chromatography Glide Path Systems Human Subject Testing Instrument Displays Instrument Panels Lighting Luminance Luminescence Motion Night Vision Nystagmus Physiological Aspects Rotation Rotational Motion Standard Deviation Standard Deviations Static And Dynamic Tests Static Tests Velocity Perception Vertigo Vestibular Apparatus Vestibular Function Tests Visibility Vision Vision--Testing Vision Tests Visual Acuity Visual Perception
Publication/ Report Number:

FAA-AM-71-34 ; DOT/FAA/AM-71/34

FAA-AM-71-34 ; DOT/FAA/AM-71/34 Less -
Resource Type:

Tech Report
Geographical Coverage:

United States
Edition:

OAM report.
Corporate Publisher:

Civil Aerospace Medical Institute
Abstract:

A previous CAMI laboratory investigation showed that alcohol impairs the ability of men to suppress vestibular nystagmus while visually fixating on a cockpit instrument, thus degrading visual tracking performance (eye-hand coordination) during angular acceleration. Reduced display illumination, independently, has also been shown to degrade tracking performance during vestibular stimulation.

The present study investigated the way in which low and moderate dosages of alcohol and two levels of instrument-display illumination combined to affect tracking performance (a) in a static (no motion) environment, and (b) in a dynamic (whole-body motion) environment. Mean blood alcohol levels as low as .027 per cent significantly decreased (P<.05) tracking performance during whole-body motion, yet caused little change in performance in a stationary environment. Impairment was much more pronounced with dim display lighting (0.1 ft-L) than with bright lighting (1.0 ft.-L).

These results suggest that serious problems may be encountered by the pilot who drinks even lightly and who considers flying, especially at night.
Format:

PDF
Collection(s):

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

[+]

urn:sha256:a2486f079a6d496dfab75d3503a8d64e982053935507ec4b825801a1cef377dc
Download URL:

https://rosap.ntl.bts.gov/view/dot/20971/dot_20971_DS1.pdf
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Alcohol and disorientation-related responses. IV, Effects of different alcohol dosages and display illumination tracking performance during vestibular stimulation.

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