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ReferencesNavigation arrowAuthorsNavigation arrowFred H. Previc
Jun 18

“ Computer programs emerge as the outcome of complex human processes of cognition, communication and negotiation, which serve to establish the meaningful embedding of the computer system in its intended use context. ”

-- Floyd, 1992, p. 24

 
 

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Fred H. Previc

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Publications by Fred H. Previc (bibliography)

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1989
 
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Ercoline, William R., Gillingham, Kent K., Greene, Frances A. and Previc, Fred H. (1989): Effects of Variations in Head-Up Display Pitch-Ladder Representations on Orientation Recognition. In: Proceedings of the Human Factors Society 33rd Annual Meeting 1989. pp. 1401-1405.

“Head-up display (HUD) research has centered on modifications to the basic aircraft control symbology -- the pitch-ladder lines. Although some of these modifications have led to minor improvements in attitude recognition, major problems still exist: pilots continue to experience spatial disorientation and to complain of occlusion due to the HUD symbols. This experiment compared four variations of a basic HUD pitch ladder: Display A, double articulation; Display B, single negative articulation; Display C, single negative articulation with gradually increasing thickness: and Display D, single negative articulation with gradually increasing thickness in a global arrangement. Accuracy of bank recognition was best when pitch-ladder symbology incorporated noticeable asymmetry. Double articulation and graduated thickness were associated with greater accuracy of pitch recognition. Studies under dynamic conditions are recommended.”

© All rights reserved Ercoline et al. and/or Human Factors Society

 
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Jun 18

“ Computer programs emerge as the outcome of complex human processes of cognition, communication and negotiation, which serve to establish the meaningful embedding of the computer system in its intended use context. ”

-- Floyd, 1992, p. 24

 
 

Featured chapter

Read the fascinating history of Wearable Computing, told by its father, Steve Mann

Read Steve's chapter !

 
 

Latest books

The Social Design of Technical Systems: Building technologies for communities
by Brian Whitworth and Adnan Ahmad

 
Start reading

The Encyclopedia of Human-Computer Interaction, 2nd Ed.
by Mads Soegaard and Rikke Friis Dam

 
Start reading
 
 

Help us help you!

 
 
 
 
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