Dissertation/Thesis Abstract

Audio and audiovisual cueing in visual search: Effects of target uncertainty and auditory cue precision
by Bertolotti, Hugo, M.S., California State University, Long Beach, 2010, 73; 1490271
Abstract (Summary)

This study attempted to resolve the findings within Vu et al. and Bertolotti and Strybel regarding horizontal and vertical auditory cue displacement on target identification by examining local target area visual saliency and target uncertainty. Targets were identified with either an auditory cue or auditory-visual cue. Auditory cues were noise bursts spatially coincident with, or directionally displaced 4° or 8° from the target. Visual cues (circle: 6.5° radius) accurately identified the local target area surrounding the target. Target uncertainty varied the percentage of targets present within a given session. For auditory cues, as target probability increased, horizontal auditory cue displacement became a greater detriment to target identification regardless of error magnitude. For auditory-visual cues, while both target present and absent search times decreased significantly compared to auditory cues, target absent identification demonstrated the most significant improvement from increasing local target area visual saliency. Design recommendations and future research are discussed.

Indexing (document details)
Advisor: Strybel, Thomas Z.
School: California State University, Long Beach
School Location: United States -- California
Source: MAI 49/04M, Masters Abstracts International
Subjects: Experimental psychology, Operations research, Physiological psychology
Publication Number: 1490271
ISBN: 978-1-124-54618-6
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