The role of presentation method and depth singletons in visual search for objects moving depth

Finlayson, Nonie J., Remington, Roger W. and Grove, Philip M. (2012) The role of presentation method and depth singletons in visual search for objects moving depth. Journal of Vision, 12 8: 13.1-13.9. doi:10.1167/12.8.13

Author Finlayson, Nonie J.
Remington, Roger W.
Grove, Philip M.
Title The role of presentation method and depth singletons in visual search for objects moving depth
Journal name Journal of Vision   Check publisher's open access policy
ISSN 1534-7362
Publication date 2012-08-01
Sub-type Article (original research)
DOI 10.1167/12.8.13
Open Access Status DOI
Volume 12
Issue 8
Start page 13.1
End page 13.9
Total pages 9
Place of publication Rockville, MD, United States
Publisher Association for Research in Vision and Ophthalmology
Language eng
Abstract Are objects moving in depth searched for efficiently? Previous studies have reported conflicting results, with some finding efficient search for only approaching motion (Franconeri & Simons, 2003), and others reporting that both approaching and receding motion are found more efficiently than static targets (Skarratt, Cole, & Gellatly, 2009). This may be due to presentation protocol differences and a confounding variable. We systematically tested the effect of the motion-in-depth presentation method and the effect of a confounding unique depth singleton on search performance. Simulating motion in depth using size scaling, changing binocular disparity, or a calibrated combination of these two depth cues, we found that search performance was affected by presentation method and that a combination of size scaling and changing disparity gives rise to the most compelling motion-in-depth perception. Exploiting this finding in Experiment 2, we found that removing the depth singleton does not affect motion-in-depth search performance. Overall, we found that search is more efficient for targets moving in depth than static targets. Approaching and receding motion had an equal advantage over static targets in target selection, shown through shallower search slopes. However, approaching motion had lower intercepts, consistent with an advantage over receding motion in later stages of processing associated with target identification and response.
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Article # 13

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2013 Collection
School of Psychology Publications
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Created: Fri, 12 Apr 2013, 21:48:51 EST by Mrs Alison Pike on behalf of School of Psychology