Skip to main content

Research Repository

Advanced Search

Visuospatial working memory mediates inhibitory and facilitatory guidance in preview search

Barrett, Doug J.K.; Shimozaki, Steven S.; Jensen, Silke; Zobay, Oliver

Authors

Doug J.K. Barrett djkb1@leicester.ac.uk

Steven S. Shimozaki

Silke Jensen

Oliver Zobay oliver.zobay@nottingham.ac.uk



Abstract

Visual search is faster and more accurate when a subset of distractors is presented before the display containing the target. This “preview benefit” has been attributed to separate inhibitory and facilitatory guidance mechanisms during search. In the preview task the temporal cues thought to elicit inhibition and facilitation provide complementary sources of information about the likely location of the target. In this study, we use a Bayesian Observer model to compare sensitivity when the temporal cues eliciting inhibition and facilitation produce complementary, and competing, sources of information. Observers searched for T-shaped targets among L-shaped distractors in two standard and two preview conditions. In the standard conditions, all the objects in the display appeared at the same time. In the preview conditions, the initial subset of distractors either stayed on the screen or disappeared before the onset of the search display, which contained the target when present. In the latter, the synchronous onset of old and new objects negates the predictive utility of stimulus-driven capture during search. The results indicate observers combine memory-driven inhibition and sensory-driven capture to reduce spatial uncertainty about the target’s likely location during search. In the absence of spatially predictive onsets, memory-driven inhibition at old locations persists despite irrelevant sensory change at previewed locations. This result is consistent with a bias towards unattended objects during search via the active suppression of irrelevant capture at previously attended locations.

Journal Article Type Article
Journal Journal of Experimental Psychology: Human Perception and Performance
Print ISSN 0096-1523
Electronic ISSN 1939-1277
Publisher American Psychological Association
Peer Reviewed Peer Reviewed
Volume 42
Issue 10
APA6 Citation Barrett, D. J., Shimozaki, S. S., Jensen, S., & Zobay, O. (in press). Visuospatial working memory mediates inhibitory and facilitatory guidance in preview search. Journal of Experimental Psychology: Human Perception and Performance, 42(10), https://doi.org/10.1037/xhp0000239
DOI https://doi.org/10.1037/xhp0000239
Keywords Visual search, Inhibition, Facilitation, Integration
Publisher URL http://dx.doi.org/10.1037/xhp0000239
Copyright Statement Copyright information regarding this work can be found at the following address: http://eprints.nottingh.../end_user_agreement.pdf
Additional Information ©2016 American Psychological Association. This article may not exactly replicate the final version published in the APA journal. It is not the copy of record.

Files

Preview Search Manuscript Final.pdf (782 Kb)
PDF

Copyright Statement
Copyright information regarding this work can be found at the following address: http://eprints.nottingham.ac.uk/end_user_agreement.pdf





You might also like



Downloadable Citations

;