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Head-up displays: Effect of information location on the processing of superimposed symbologyHead-up display (HUD) symbology superimposes vehicle status information onto the external terrain, providing simultaneous visual access to both sources of information. Relative to a baseline condition in which the superimposed altitude indicator was omitted, altitude maintenance was improved by the presence of the altitude indicator, and this improvement was the same magnitude regardless of the position of the altitude indicator on the screen. However, a concurrent decifit in heading maintenance was observed only when the altitude indicator was proximal to the path information. These results did not support a model of the concurrent processing deficit based on an inability to attend to multiple locations in parallel. They are consistent with previous claims that the deficit is the product of attentional limits on subjects' ability to process two separate objects (HUD symbology and terrain information) concurrently. The absence of a performance tradeoff when the HUD and the path information were less proximal is attributed to a breaking of attentional tunneling on the HUD, possibly due to eye movements.
Document ID
19950063449
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Sanford, Beverly D.
(CTA Inc. Moffett Field, CA, US, United States)
Foyle, David C.
(NASA Ames Research Center Moffett Field, CA, US, United States)
Mccann, Robert S.
(Sterling Software, Palo Alto, CA US, United States)
Jordan, Kevin
(San Jose State Univ. San Jose, CA, US, United States)
Date Acquired
August 17, 2013
Publication Date
April 1, 1993
Publication Information
Publisher: Ohio State University
Subject Category
Man/System Technology And Life Support
Accession Number
95A95048
Funding Number(s)
CONTRACT_GRANT: NCC2-327
Distribution Limits
Public
Copyright
Other

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