Dynamic characteristics of multisensory facilitation and inhibition
Identifieur interne : 002458 ( Main/Exploration ); précédent : 002457; suivant : 002459Dynamic characteristics of multisensory facilitation and inhibition
Auteurs : W. Y. Wang [République populaire de Chine] ; L. Hu [République populaire de Chine] ; E. Valentini [Royaume-Uni] ; X. B. Xie [République populaire de Chine] ; H. Y. Cui [République populaire de Chine] ; Y. Hu [République populaire de Chine]Source :
- Cognitive Neurodynamics [ 1871-4080 ] ; 2012.
Abstract
Multimodal integration, which mainly refers to multisensory facilitation and multisensory inhibition, is the process of merging multisensory information in the human brain. However, the neural mechanisms underlying the dynamic characteristics of multimodal integration are not fully understood. The objective of this study is to investigate the basic mechanisms of multimodal integration by assessing the intermodal influences of vision, audition, and somatosensory sensations (the influence of multisensory background events to the target event). We used a timed target detection task, and measured both behavioral and electroencephalographic responses to visual target events (green solid circle), auditory target events (2 kHz pure tone) and somatosensory target events (1.5 ± 0.1 mA square wave pulse) from 20 normal participants. There were significant differences in both behavior performance and ERP components when comparing the unimodal target stimuli with multimodal (bimodal and trimodal) target stimuli for all target groups. Significant correlation among reaction time and P3 latency was observed across all target conditions. The perceptual processing of auditory target events (A) was inhibited by the background events, while the perceptual processing of somatosensory target events (S) was facilitated by the background events. In contrast, the perceptual processing of visual target events (V) remained impervious to multisensory background events.
Url:
DOI: 10.1007/s11571-012-9197-x
PubMed: 24082962
PubMed Central: 3438327
Affiliations:
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Y." last="Wang">W. Y. Wang</name><affiliation wicri:level="3"><nlm:aff id="Aff1">Chinese Academy of Medical Science and Peking Union Medical College, Institute of Biomedical Engineering, Tianjin, China</nlm:aff><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>Chinese Academy of Medical Science and Peking Union Medical College, Institute of Biomedical Engineering, Tianjin</wicri:regionArea><placeName><settlement type="city">Tianjin</settlement></placeName></affiliation><affiliation wicri:level="1"><nlm:aff id="Aff2">Department of Orthopaedics and Traumatology, Duchess of Kent Children’s Hospital, The University of Hong Kong, 12 Sandy Bay Road, Hong Kong, China</nlm:aff><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>Department of Orthopaedics and Traumatology, Duchess of Kent Children’s Hospital, The University of Hong Kong, 12 Sandy Bay Road, Hong Kong</wicri:regionArea><wicri:noRegion>Hong Kong</wicri:noRegion></affiliation></author><author><name sortKey="Hu, L" sort="Hu, L" uniqKey="Hu L" first="L." last="Hu">L. Hu</name><affiliation wicri:level="1"><nlm:aff id="Aff3">Key Laboratory of Cognition and Personality (Ministry of Education), School of Psychology, Southwest University, Chongqing, China</nlm:aff><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>Key Laboratory of Cognition and Personality (Ministry of Education), School of Psychology, Southwest University, Chongqing</wicri:regionArea><wicri:noRegion>Chongqing</wicri:noRegion></affiliation></author><author><name sortKey="Valentini, E" sort="Valentini, E" uniqKey="Valentini E" first="E." last="Valentini">E. 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Hu</name><affiliation wicri:level="3"><nlm:aff id="Aff1">Chinese Academy of Medical Science and Peking Union Medical College, Institute of Biomedical Engineering, Tianjin, China</nlm:aff><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>Chinese Academy of Medical Science and Peking Union Medical College, Institute of Biomedical Engineering, Tianjin</wicri:regionArea><placeName><settlement type="city">Tianjin</settlement></placeName></affiliation><affiliation wicri:level="1"><nlm:aff id="Aff2">Department of Orthopaedics and Traumatology, Duchess of Kent Children’s Hospital, The University of Hong Kong, 12 Sandy Bay Road, Hong Kong, China</nlm:aff><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>Department of Orthopaedics and Traumatology, Duchess of Kent Children’s Hospital, The University of Hong Kong, 12 Sandy Bay Road, Hong Kong</wicri:regionArea><wicri:noRegion>Hong Kong</wicri:noRegion></affiliation></author></analytic><series><title level="j">Cognitive Neurodynamics</title><idno type="ISSN">1871-4080</idno><idno type="eISSN">1871-4099</idno><imprint><date when="2012">2012</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><p>Multimodal integration, which mainly refers to multisensory facilitation and multisensory inhibition, is the process of merging multisensory information in the human brain. However, the neural mechanisms underlying the dynamic characteristics of multimodal integration are not fully understood. The objective of this study is to investigate the basic mechanisms of multimodal integration by assessing the intermodal influences of vision, audition, and somatosensory sensations (the influence of multisensory background events to the target event). We used a timed target detection task, and measured both behavioral and electroencephalographic responses to visual target events (green solid circle), auditory target events (2 kHz pure tone) and somatosensory target events (1.5 ± 0.1 mA square wave pulse) from 20 normal participants. There were significant differences in both behavior performance and ERP components when comparing the unimodal target stimuli with multimodal (bimodal and trimodal) target stimuli for all target groups. Significant correlation among reaction time and P3 latency was observed across all target conditions. The perceptual processing of auditory target events (A) was inhibited by the background events, while the perceptual processing of somatosensory target events (S) was facilitated by the background events. In contrast, the perceptual processing of visual target events (V) remained impervious to multisensory background events.</p></div></front></TEI><affiliations><list><country><li>Royaume-Uni</li><li>République populaire de Chine</li></country><region><li>Angleterre</li><li>Grand Londres</li></region><settlement><li>Londres</li><li>Tianjin</li></settlement></list><tree><country name="République populaire de Chine"><noRegion><name sortKey="Wang, W Y" sort="Wang, W Y" uniqKey="Wang W" first="W. Y." last="Wang">W. Y. Wang</name></noRegion><name sortKey="Cui, H Y" sort="Cui, H Y" uniqKey="Cui H" first="H. Y." last="Cui">H. Y. Cui</name><name sortKey="Hu, L" sort="Hu, L" uniqKey="Hu L" first="L." last="Hu">L. Hu</name><name sortKey="Hu, Y" sort="Hu, Y" uniqKey="Hu Y" first="Y." last="Hu">Y. Hu</name><name sortKey="Hu, Y" sort="Hu, Y" uniqKey="Hu Y" first="Y." last="Hu">Y. Hu</name><name sortKey="Wang, W Y" sort="Wang, W Y" uniqKey="Wang W" first="W. Y." last="Wang">W. Y. Wang</name><name sortKey="Xie, X B" sort="Xie, X B" uniqKey="Xie X" first="X. B." last="Xie">X. B. Xie</name></country><country name="Royaume-Uni"><region name="Angleterre"><name sortKey="Valentini, E" sort="Valentini, E" uniqKey="Valentini E" first="E." last="Valentini">E. Valentini</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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