Please use this identifier to cite or link to this item: http://buratest.brunel.ac.uk/handle/2438/7143
Title: Visual search in ecological and non-ecological displays: Evidence for a non-monotonic effect of complexity on performance
Authors: Chassy, P
Gobet, F
Issue Date: 2013
Publisher: Public Library of Science
Citation: PLoS One, 8(1): e53420, Jan 2013
Abstract: Considerable research has been carried out on visual search, with single or multiple targets. However, most studies have used artificial stimuli with low ecological validity. In addition, little is known about the effects of target complexity and expertise in visual search. Here, we investigate visual search in three conditions of complexity (detecting a king, detecting a check, and detecting a checkmate) with chess players of two levels of expertise (novices and club players). Results show that the influence of target complexity depends on level of structure of the visual display. Different functional relationships were found between artificial (random chess positions) and ecologically valid (game positions) stimuli: With artificial, but not with ecologically valid stimuli, a “pop out” effect was present when a target was visually more complex than distractors but could be captured by a memory chunk. This suggests that caution should be exercised when generalising from experiments using artificial stimuli with low ecological validity to real-life stimuli.
Description: Copyright @ 2013 PLoS
This article has been made available through the Brunel Open Access Publishing Fund.
URI: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3540030/
http://bura.brunel.ac.uk/handle/2438/7143
DOI: http://dx.doi.org/10.1371/journal.pone.0053420
ISSN: 1932-6203
Appears in Collections:Publications
Brunel OA Publishing Fund
Psychology
Dept of Life Sciences Research Papers

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