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Article: Holistic processing as measured in the composite task does not always go with right hemisphere processing in face perception

TitleHolistic processing as measured in the composite task does not always go with right hemisphere processing in face perception
Authors
Issue Date2016
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/neucom
Citation
Neurocomputing, 2016, v. 182, p. 165-177 How to Cite?
AbstractHolistic processing has long been considered as a property of right hemisphere processing. Nevertheless, a counterexample was recently found: Chinese character recognition expertise is associated with reduced holistic processing (as measured in the composite task) and increased right hemisphere lateralization (as indicated by a left-side bias in character perception), revealing that they may be separate processes. Through computational modeling, in which we implemented a theory of hemispheric asymmetry in perception that posits a low spatial frequency bias in the right hemisphere and a high spatial frequency bias in the left hemisphere, we showed that when the face recognition task relied purely on featural information, there was a negative correlation between holistic processing and right hemisphere lateralization. In contrast, when the task relied purely on configural information, there was a positive correlation between holistic processing and right hemisphere lateralization. In another simulation with real face images, which naturally embed both featural and configural changes, we observed no correlation between holistic processing and right hemisphere lateralization. This result was replicated behaviorally with human participants. Together, these results suggest that holistic processing (as measured in the composite task) and right hemisphere lateralization are separate processes that can be influenced differentially by task requirements.
Persistent Identifierhttp://hdl.handle.net/10722/232936
ISSN
2015 Impact Factor: 2.392
2015 SCImago Journal Rankings: 1.202

 

DC FieldValueLanguage
dc.contributor.authorHsiao, JHW-
dc.contributor.authorGalmar, B-
dc.date.accessioned2016-09-20T05:33:29Z-
dc.date.available2016-09-20T05:33:29Z-
dc.date.issued2016-
dc.identifier.citationNeurocomputing, 2016, v. 182, p. 165-177-
dc.identifier.issn0925-2312-
dc.identifier.urihttp://hdl.handle.net/10722/232936-
dc.description.abstractHolistic processing has long been considered as a property of right hemisphere processing. Nevertheless, a counterexample was recently found: Chinese character recognition expertise is associated with reduced holistic processing (as measured in the composite task) and increased right hemisphere lateralization (as indicated by a left-side bias in character perception), revealing that they may be separate processes. Through computational modeling, in which we implemented a theory of hemispheric asymmetry in perception that posits a low spatial frequency bias in the right hemisphere and a high spatial frequency bias in the left hemisphere, we showed that when the face recognition task relied purely on featural information, there was a negative correlation between holistic processing and right hemisphere lateralization. In contrast, when the task relied purely on configural information, there was a positive correlation between holistic processing and right hemisphere lateralization. In another simulation with real face images, which naturally embed both featural and configural changes, we observed no correlation between holistic processing and right hemisphere lateralization. This result was replicated behaviorally with human participants. Together, these results suggest that holistic processing (as measured in the composite task) and right hemisphere lateralization are separate processes that can be influenced differentially by task requirements.-
dc.languageeng-
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/neucom-
dc.relation.ispartofNeurocomputing-
dc.rightsPosting accepted manuscript (postprint): © <year>. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/-
dc.titleHolistic processing as measured in the composite task does not always go with right hemisphere processing in face perception-
dc.typeArticle-
dc.identifier.emailHsiao, JHW: jhsiao@hku.hk-
dc.identifier.authorityHsiao, JHW=rp00632-
dc.identifier.doi10.1016/j.neucom.2015.12.018-
dc.identifier.hkuros263194-
dc.identifier.volume182-
dc.identifier.spage165-
dc.identifier.epage177-
dc.publisher.placeNetherlands-

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