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Article: Language regions of brain are operative in color perception

TitleLanguage regions of brain are operative in color perception
Authors
KeywordsFunctional magnetic resonance imaging (fMRI)
Lateralization
Issue Date2009
PublisherNational Academy of Sciences. The Journal's web site is located at http://www.pnas.org
Citation
Proceedings of The National Academy of Sciences of The United States of America, 2009, v. 106 n. 20, p. 8140-8145 How to Cite?
AbstractThe effect of language on the categorical perception of color is stronger for stimuli in the right visual field (RVF) than in the left visual field, but the neural correlates of the behavioral RVF advantage are unknown. Here we present brain activation maps revealing how language is differentially engaged in the discrimination of colored stimuli presented in either visual hemifield. In a rapid, event-related functional MRI study, we measured subjects' brain activity while they performed a visual search task. Compared with colors from the same lexical category, discrimination of colors from different linguistic categories provoked stronger and faster responses in the left hemisphere language regions, particularly when the colors were presented in the RVF. In addition, activation of visual areas 2/3, responsible for color perception, was much stronger for RVF stimuli from different linguistic categories than for stimuli from the same linguistic category. Notably, the enhanced activity of visual areas 2/3 coincided with the enhanced activity of the left posterior temporoparietal language region, suggesting that this language region may serve as a top-down control source that modulates the activation of the visual cortex. These findings shed light on the brain mechanisms that underlie the hemifielddependent effect of language on visual perception.
Persistent Identifierhttp://hdl.handle.net/10722/156024
ISSN
2015 Impact Factor: 9.423
2015 SCImago Journal Rankings: 6.883
PubMed Central ID
ISI Accession Number ID
Funding AgencyGrant Number
National Strategic Basic Research Program of the Ministry of Science and Technology of China2005CB522802
Knowledge Innovation Program of the Chinese Academy of Sciences
Shun Hing Institute of Advanced Engineering of Chinese University of Hong Kong811-5020
U.S. National Science Foundation0418404
Funding Information:

We thank Liu Haiqi, Zhou Ke, Wei Zhou, Joey Li, and Liu Zhendong for help with the experiments. This research was supported by a 973 grant from the National Strategic Basic Research Program of the Ministry of Science and Technology of China (2005CB522802), the Knowledge Innovation Program of the Chinese Academy of Sciences, the University of Hong Kong, Grant 811-5020 from the Shun Hing Institute of Advanced Engineering of Chinese University of Hong Kong, and by Grant 0418404 from the U.S. National Science Foundation.

References

 

DC FieldValueLanguage
dc.contributor.authorSiok, WTen_HK
dc.contributor.authorKay, Pen_HK
dc.contributor.authorWang, WSYen_HK
dc.contributor.authorChan, AHDen_HK
dc.contributor.authorChen, Len_HK
dc.contributor.authorLuke, KKen_HK
dc.contributor.authorTan, LHen_HK
dc.date.accessioned2012-08-08T08:39:51Z-
dc.date.available2012-08-08T08:39:51Z-
dc.date.issued2009en_HK
dc.identifier.citationProceedings of The National Academy of Sciences of The United States of America, 2009, v. 106 n. 20, p. 8140-8145en_HK
dc.identifier.issn0027-8424en_HK
dc.identifier.urihttp://hdl.handle.net/10722/156024-
dc.description.abstractThe effect of language on the categorical perception of color is stronger for stimuli in the right visual field (RVF) than in the left visual field, but the neural correlates of the behavioral RVF advantage are unknown. Here we present brain activation maps revealing how language is differentially engaged in the discrimination of colored stimuli presented in either visual hemifield. In a rapid, event-related functional MRI study, we measured subjects' brain activity while they performed a visual search task. Compared with colors from the same lexical category, discrimination of colors from different linguistic categories provoked stronger and faster responses in the left hemisphere language regions, particularly when the colors were presented in the RVF. In addition, activation of visual areas 2/3, responsible for color perception, was much stronger for RVF stimuli from different linguistic categories than for stimuli from the same linguistic category. Notably, the enhanced activity of visual areas 2/3 coincided with the enhanced activity of the left posterior temporoparietal language region, suggesting that this language region may serve as a top-down control source that modulates the activation of the visual cortex. These findings shed light on the brain mechanisms that underlie the hemifielddependent effect of language on visual perception.en_HK
dc.languageengen_US
dc.publisherNational Academy of Sciences. The Journal's web site is located at http://www.pnas.orgen_HK
dc.relation.ispartofProceedings of the National Academy of Sciences of the United States of Americaen_HK
dc.subjectFunctional magnetic resonance imaging (fMRI)en_HK
dc.subjectLateralizationen_HK
dc.subject.meshBrain Mappingen_US
dc.subject.meshColor Perception - Physiologyen_US
dc.subject.meshFemaleen_US
dc.subject.meshFunctional Lateralityen_US
dc.subject.meshHumansen_US
dc.subject.meshLanguageen_US
dc.subject.meshMagnetic Resonance Imagingen_US
dc.subject.meshMaleen_US
dc.subject.meshPhotic Stimulationen_US
dc.subject.meshVisual Cortex - Physiologyen_US
dc.subject.meshVisual Fieldsen_US
dc.subject.meshYoung Adulten_US
dc.titleLanguage regions of brain are operative in color perceptionen_HK
dc.typeArticleen_HK
dc.identifier.emailSiok, WT: siok@hkucc.hku.hken_HK
dc.identifier.emailLuke, KK: kkluke@hkusua.hku.hken_HK
dc.identifier.emailTan, LH: tanlh@hku.hken_HK
dc.identifier.authoritySiok, WT=rp01208en_HK
dc.identifier.authorityLuke, KK=rp01201en_HK
dc.identifier.authorityTan, LH=rp01202en_HK
dc.description.naturelink_to_OA_fulltexten_US
dc.identifier.doi10.1073/pnas.0903627106en_HK
dc.identifier.pmid19416812-
dc.identifier.pmcidPMC2688888-
dc.identifier.scopuseid_2-s2.0-66249149029en_HK
dc.identifier.hkuros156364-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-66249149029&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume106en_HK
dc.identifier.issue20en_HK
dc.identifier.spage8140en_HK
dc.identifier.epage8145en_HK
dc.identifier.isiWOS:000266209000012-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridSiok, WT=6602471035en_HK
dc.identifier.scopusauthoridKay, P=7102087705en_HK
dc.identifier.scopusauthoridWang, WSY=35726254300en_HK
dc.identifier.scopusauthoridChan, AHD=23766960600en_HK
dc.identifier.scopusauthoridChen, L=7409440074en_HK
dc.identifier.scopusauthoridLuke, KK=7003697439en_HK
dc.identifier.scopusauthoridTan, LH=7402233462en_HK
dc.identifier.citeulike4995648-

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