Matthew S. Cain
A Bayesian Optimal Foraging Model of Human Visual Search
Cain, Matthew S.; Vul, Edward; Clark, Kait; Mitroff, Stephen R.
Authors
Edward Vul
Dr Kait Clark Kait.Clark@uwe.ac.uk
Senior Lecturer in Psychology (Cognitive and Neuro)
Stephen R. Mitroff
Abstract
Real-world visual searches often contain a variable and unknown number of targets. Such searches present difficult metacognitive challenges, as searchers must decide when to stop looking for additional targets, which results in high miss rates in multiple-target searches. In the study reported here, we quantified human strategies in multiple-target search via an ecological optimal foraging model and investigated whether searchers adapt their strategies to complex target-distribution statistics. Separate groups of individuals searched displays with the number of targets per trial sampled from different geometric distributions but with the same overall target prevalence. As predicted by optimal foraging theory, results showed that individuals searched longer when they expected more targets to be present and adjusted their expectations on-line during each search by taking into account the higher-order, across-trial target distributions. However, compared with modeled ideal observers, participants systematically responded as if the target distribution were more uniform than it was, which suggests that training could improve multiple-target search performance. © The Author(s) 2012.
Citation
Cain, M. S., Vul, E., Clark, K., & Mitroff, S. R. (2012). A Bayesian Optimal Foraging Model of Human Visual Search. Psychological Science, 23(9), 1047-1054. https://doi.org/10.1177/0956797612440460
Journal Article Type | Article |
---|---|
Acceptance Date | Jan 31, 2012 |
Online Publication Date | Aug 6, 2012 |
Publication Date | Jan 1, 2012 |
Deposit Date | Aug 2, 2017 |
Publicly Available Date | Mar 28, 2024 |
Journal | Psychological Science |
Print ISSN | 0956-7976 |
Electronic ISSN | 1467-9280 |
Publisher | SAGE Publications |
Peer Reviewed | Peer Reviewed |
Volume | 23 |
Issue | 9 |
Pages | 1047-1054 |
DOI | https://doi.org/10.1177/0956797612440460 |
Keywords | visual search, environmental effects |
Public URL | https://uwe-repository.worktribe.com/output/944151 |
Publisher URL | http://dx.doi.org/10.1177/0956797612440460 |
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