Effect of Localized Auditory Information on Visual Target Detection Performance Using A Helmet-Mounted Display

An experiment was conducted to evaluate the effects of localized auditory information on visual target detection performance. Visual targets were presented on either a wide field-of-view dome display or a helmet-mounted display and were accompanied by either localized, nonlocalized, or no auditory i...

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Bibliographic Details
Main Authors: Nelson, W. T, Hettinger, Lawrence J, Cunningham, James A, Brickman, Bart J, Hass, Michael W
Format: Report
Language:English
Subjects:
AUDITORY SIGNALS
CONSISTENCY
EFFICIENCY
HELMET MOUNTED DISPLAYS
Military Intelligence
Non-radio Communications
PERFORMANCE(ENGINEERING)
QUANTITATIVE ANALYSIS
TARGET DETECTION
VIRTUAL REALITY
VISUAL PERCEPTION
VISUAL TARGETS
WIDE ANGLES
WUAFRL32570304
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Summary:An experiment was conducted to evaluate the effects of localized auditory information on visual target detection performance. Visual targets were presented on either a wide field-of-view dome display or a helmet-mounted display and were accompanied by either localized, nonlocalized, or no auditory information. The addition of localized auditory information resulted in significant increases in target detection performance and significant reductions in workload ratings as compared with conditions in which auditory information was either nonlocalized or absent. Qualitative and quantitative analyses of participants' head motions revealed that the addition of localized auditory information resulted in extremely efficient and consistent search strategies. Implications for the development and design of multisensory virtual environments are discussed. Actual or potential applications of this research include the use of spatial auditory displays to augment visual information presented in helmet-mounted displays, thereby leading to increases in performance efficiency, reductions in physical and mental workload, and enhanced spatial awareness of objects in the environment.