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dc.contributor.authorKristjansson, Arni-
dc.contributor.authorJohannesson, Omar I.-
dc.contributor.authorThornton, Ian M.-
dc.identifier.citationKristjansson, A., Johannesson, O. I., & Thornton, I. M. (2014). Common attentional constraints in visual foraging. PLoS ONE, 9(6), e100752.en_GB
dc.description.abstractPredators are known to select food of the same type in non-random sequences or “runs” that are longer than would be expected by chance. If prey are conspicuous, predators will switch between available sources, interleaving runs of different prey types. However, when prey are cryptic, predators tend to focus on one food type at a time, effectively ignoring equally available sources. This latter finding is regarded as a key indicator that animal foraging is strongly constrained by attention. It is unknown whether human foraging is equally constrained. Here, using a novel iPad task, we demonstrate for the first time that it is. Participants were required to locate and touch 40 targets from 2 different categories embedded within a dense field of distractors. When individual target items “popped-out” search was organized into multiple runs, with frequent switching between target categories. In contrast, as soon as focused attention was required to identify individual targets, participants typically exhausted one entire category before beginning to search for the other. This commonality in animal and human foraging is compelling given the additional cognitive tools available to humans, and suggests that attention constrains search behavior in a similar way across a broad range of species.en_GB
dc.subjectPredation (Biology)en_GB
dc.subjectAnimals -- Fooden_GB
dc.subjectHuman behavioren_GB
dc.titleCommon attentional constraints in visual foragingen_GB
dc.rights.holderThe copyright of this work belongs to the author(s)/publisher. The rights of this work are as defined by the appropriate Copyright Legislation or as modified by any successive legislation. Users may access this work and can make use of the information contained in accordance with the Copyright Legislation provided that the author must be properly acknowledged. Further distribution or reproduction in any format is prohibited without the prior permission of the copyright holder.en_GB
dc.publication.titlePLoS ONEen_GB
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