University of Leicester
Browse
1/1
2 files

Attentional control via parallel target-templates in dual-target search

journal contribution
posted on 2014-06-23, 08:48 authored by Doug J. K. Barrett, Oliver Zobay
Simultaneous search for two targets has been shown to be slower and less accurate than independent searches for the same two targets. Recent research suggests this ‘dual-target cost’ may be attributable to a limit in the number of target-templates than can guide search at any one time. The current study investigated this possibility by comparing behavioural responses during single- and dual-target searches for targets defined by their orientation. The results revealed an increase in reaction times for dual- compared to single-target searches that was largely independent of the number of items in the display. Response accuracy also decreased on dual- compared to single-target searches: dual-target accuracy was higher than predicted by a model restricting search guidance to a single target-template and lower than predicted by a model simulating two independent single-target searches. These results are consistent with a parallel model of dual-target search in which attentional control is exerted by more than one target-template at a time. The requirement to maintain two target-templates simultaneously, however, appears to impose a reduction in the specificity of the memory representation that guides search for each target.

History

Citation

PLOS ONE, 2014, 9 (1): e86848.

Author affiliation

/Organisation/COLLEGE OF MEDICINE, BIOLOGICAL SCIENCES AND PSYCHOLOGY/School of Psychology

Version

  • VoR (Version of Record)

Published in

PLOS ONE

Publisher

Public Library of Science

issn

1932-6203

eissn

1932-6203

Copyright date

2014

Available date

2014-06-23

Publisher version

http://www.plosone.org/article/info:doi/10.1371/journal.pone.0086848

Language

en

Usage metrics

    University of Leicester Publications

    Categories

    No categories selected

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC