Dissociating Compatibility Effects and Distractor Costs in the Additional Singleton Paradigm

The interpretation of identity compatibility effects associated with irrelevant items outside the nominal focus of attention has fueled much of the debate over early versus late selection and perceptual load theory. However, compatibility effects have also played a role in the debate over the exten...

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Main Author: Charles eFolk
Format: Article
Language:English
Published: Frontiers Media S.A. 2013-07-01
Series:Frontiers in Psychology
Subjects:
Online Access:http://journal.frontiersin.org/Journal/10.3389/fpsyg.2013.00434/full
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author Charles eFolk
author_facet Charles eFolk
author_sort Charles eFolk
collection DOAJ
description The interpretation of identity compatibility effects associated with irrelevant items outside the nominal focus of attention has fueled much of the debate over early versus late selection and perceptual load theory. However, compatibility effects have also played a role in the debate over the extent to which the involuntary allocation of spatial attention (i.e., attentional capture) is completely stimulus-driven or whether it is contingent on top-down control settings. For example, in the context of the additional singleton paradigm, irrelevant color singletons have been found to produce not only an overall cost in search performance but also significant compatibility effects. This combination of search costs and compatibility effects has been taken as evidence that spatial attention is indeed allocated in a bottom-up fashion to the salient but irrelevant singletons. However, it is possible that compatibility effects in the additional singleton paradigm reflect parallel processing of identity associated with low perceptual load rather than an involuntary shift of spatial attention. In the present experiments, manipulations of load were incorporated into the traditional additional singleton paradigm. Under low load conditions, both search costs and compatibility effects were obtained, replicating previous studies. Under high load conditions, search costs were still present, but compatibility effects were eliminated. This dissociation suggests that the costs associated with irrelevant singletons may reflect filtering processes rather than the allocation of spatial attention.
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spelling doaj.art-c90b26cc17f74b958806d98e3bf658d82022-12-22T03:46:10ZengFrontiers Media S.A.Frontiers in Psychology1664-10782013-07-01410.3389/fpsyg.2013.0043450465Dissociating Compatibility Effects and Distractor Costs in the Additional Singleton ParadigmCharles eFolk0Villanova UniversityThe interpretation of identity compatibility effects associated with irrelevant items outside the nominal focus of attention has fueled much of the debate over early versus late selection and perceptual load theory. However, compatibility effects have also played a role in the debate over the extent to which the involuntary allocation of spatial attention (i.e., attentional capture) is completely stimulus-driven or whether it is contingent on top-down control settings. For example, in the context of the additional singleton paradigm, irrelevant color singletons have been found to produce not only an overall cost in search performance but also significant compatibility effects. This combination of search costs and compatibility effects has been taken as evidence that spatial attention is indeed allocated in a bottom-up fashion to the salient but irrelevant singletons. However, it is possible that compatibility effects in the additional singleton paradigm reflect parallel processing of identity associated with low perceptual load rather than an involuntary shift of spatial attention. In the present experiments, manipulations of load were incorporated into the traditional additional singleton paradigm. Under low load conditions, both search costs and compatibility effects were obtained, replicating previous studies. Under high load conditions, search costs were still present, but compatibility effects were eliminated. This dissociation suggests that the costs associated with irrelevant singletons may reflect filtering processes rather than the allocation of spatial attention.http://journal.frontiersin.org/Journal/10.3389/fpsyg.2013.00434/fullTop-down controlattentional captureLoad theoryCompatibility effectsaddtional singleton paradigm
spellingShingle Charles eFolk
Dissociating Compatibility Effects and Distractor Costs in the Additional Singleton Paradigm
Frontiers in Psychology
Top-down control
attentional capture
Load theory
Compatibility effects
addtional singleton paradigm
title Dissociating Compatibility Effects and Distractor Costs in the Additional Singleton Paradigm
title_full Dissociating Compatibility Effects and Distractor Costs in the Additional Singleton Paradigm
title_fullStr Dissociating Compatibility Effects and Distractor Costs in the Additional Singleton Paradigm
title_full_unstemmed Dissociating Compatibility Effects and Distractor Costs in the Additional Singleton Paradigm
title_short Dissociating Compatibility Effects and Distractor Costs in the Additional Singleton Paradigm
title_sort dissociating compatibility effects and distractor costs in the additional singleton paradigm
topic Top-down control
attentional capture
Load theory
Compatibility effects
addtional singleton paradigm
url http://journal.frontiersin.org/Journal/10.3389/fpsyg.2013.00434/full
work_keys_str_mv AT charlesefolk dissociatingcompatibilityeffectsanddistractorcostsintheadditionalsingletonparadigm