Effects of Multimodal Displays About Threat Location on Target Acquisition and Attention to Visual and Auditory Communications

This laboratory experiment examined the effects of paired sensory cues that indicate the location of targets on target acquisition performance, the recall of information presented in concurrent visual and auditory communications, and perceived workload. The multimodal cueing techniques assessed in t...

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Bibliographic Details
Main Authors: Glumm, Monica M, Kehring, Kathy L, White, Timothy L
Format: Report
Language:English
Subjects:
Anatomy and Physiology
AUDITORY PERCEPTION
AUDITORY SIGNALS
COMMUNICATION AND RADIO SYSTEMS
CUEING
DISPLAY
DISPLAY SYSTEMS
JOBS
LABORATORY TESTS
LANGUAGE
MULTIMODE
OPTICAL COMMUNICATIONS
PE62716A
PERFORMANCE(HUMAN)
POSITION(LOCATION)
Radio Communications
REACTION TIME
RECALL
SECONDARY
SENSORY MODALITIES
SPATIAL DISTRIBUTION
TARGET ACQUISITION
Target Direction, Range and Position Finding
THREATS
VISION
VOICE COMMUNICATIONS
WORKLOAD
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Summary:This laboratory experiment examined the effects of paired sensory cues that indicate the location of targets on target acquisition performance, the recall of information presented in concurrent visual and auditory communications, and perceived workload. The multimodal cueing techniques assessed in this study were Visual+Spatial Language, Visual+3-D Audio, Visual+Tactile, and Spatial Language+Tactile. A unimodal visual only cue was included as a baseline. Except for reaction times to cues, no significant differences were found between the multimodal cue conditions and the Visual Only mode in primary and secondary task performance or subjective workload. Reaction times were faster in the Visual+3-D Audio and the Visual+Tactile conditions than in modes that included a spatial language cue. Reaction times to the visual+spatial language cue were faster than the spatial language+tactile cue, but no significant differences were found between the Visual+Spatial Language and the Visual Only modes. Adding the 3-D audio cue to the visual cue significantly improved reaction time beyond that of the Visual Only condition, but no significant difference was found between the Visual Only and the Visual+Tactile modes. Reaction times to cues were slower when communications were presented visually, but no interaction was found between communications modality and cue condition on this measure. Communications modality, however, did have a different effect on subjective ratings of effort in the Visual+Tactile mode than in the other cue conditions. In the Visual+Tactile mode, ratings of effort were significantly lower when communications were presented auditorily than when they were presented visually, but communications modality did not appear to affect ratings of effort in the other cue conditions. The original document contains color images.