NDLI: Visual scanning behavior and pilot workload

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Visual scanning behavior and pilot workload

Content Provider	NASA Technical Reports Server (NTRS)
Author	Young, L. R. Vivaudou, M. Tole, J. R. Stephens, A. T. Ephrath, A. R.
Copyright Year	1983
Description	Sophisticated man machine interaction often requires the human operator to perform a stereotyped scan of various instruments in order to monitor and/or control a system. For situations in which this type of stereotyped behavior exists, such as certain phases of instrument flight, scan pattern was shown to be altered by the imposition of simultaneous verbal tasks. A study designed to examine the relationship between pilot visual scan of instruments and mental workload is described. It was found that a verbal loading task of varying difficulty causes pilots to stare at the primary instrument as the difficulty increases and to shed looks at instruments of less importance. The verbal loading task also affected the rank ordering of scanning sequences. By examining the behavior of pilots with widely varying skill levels, it was suggested that these effects occur most strongly at lower skill levels and are less apparent at high skill levels. A graphical interpretation of the hypothetical relationship between skill, workload, and performance is introduced and modelling results are presented to support this interpretation.
File Size	4538880
Page Count	56
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19830025266
Archival Resource Key	ark:/13960/t4jm73g5n
Language	English
Publisher Date	1983-08-01
Access Restriction	Open
Subject Keyword	Behavioral Sciences Visual Tasks Abilities Scanning Workloads Psychophysiology Power Spectra Aircraft Pilots Aircraft Instruments Entropy Man Machine Systems Autocorrelation Verbal Communication Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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