Semantic congruent audiovisual integration during the encoding stage of working memory: an ERP and sLORETA study

Abstract Although multisensory integration is an inherent component of functional brain organization, multisensory integration during working memory (WM) has attracted little attention. The present study investigated the neural properties underlying the multisensory integration of WM by comparing se...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Yuanjun Xie, Yuanyuan Xu, Chen Bian, Min Li
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/cf9ae35c98f94554b6d7e0a410ee8dff
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:cf9ae35c98f94554b6d7e0a410ee8dff
record_format	dspace
spelling	oai:doaj.org-article:cf9ae35c98f94554b6d7e0a410ee8dff2021-12-02T11:52:21ZSemantic congruent audiovisual integration during the encoding stage of working memory: an ERP and sLORETA study10.1038/s41598-017-05471-12045-2322https://doaj.org/article/cf9ae35c98f94554b6d7e0a410ee8dff2017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-05471-1https://doaj.org/toc/2045-2322Abstract Although multisensory integration is an inherent component of functional brain organization, multisensory integration during working memory (WM) has attracted little attention. The present study investigated the neural properties underlying the multisensory integration of WM by comparing semantically related bimodal stimulus presentations with unimodal stimulus presentations and analysing the results using the standardized low-resolution brain electromagnetic tomography (sLORETA) source location approach. The results showed that the memory retrieval reaction times during congruent audiovisual conditions were faster than those during unisensory conditions. Moreover, our findings indicated that the event-related potential (ERP) for simultaneous audiovisual stimuli differed from the ERP for the sum of unisensory constituents during the encoding stage and occurred within a 236–530 ms timeframe over the frontal and parietal-occipital electrodes. The sLORETA images revealed a distributed network of brain areas that participate in the multisensory integration of WM. These results suggested that information inputs from different WM subsystems yielded nonlinear multisensory interactions and became integrated during the encoding stage. The multicomponent model of WM indicates that the central executive could play a critical role in the integration of information from different slave systems.Yuanjun XieYuanyuan XuChen BianMin LiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-10 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Yuanjun Xie Yuanyuan Xu Chen Bian Min Li Semantic congruent audiovisual integration during the encoding stage of working memory: an ERP and sLORETA study
description	Abstract Although multisensory integration is an inherent component of functional brain organization, multisensory integration during working memory (WM) has attracted little attention. The present study investigated the neural properties underlying the multisensory integration of WM by comparing semantically related bimodal stimulus presentations with unimodal stimulus presentations and analysing the results using the standardized low-resolution brain electromagnetic tomography (sLORETA) source location approach. The results showed that the memory retrieval reaction times during congruent audiovisual conditions were faster than those during unisensory conditions. Moreover, our findings indicated that the event-related potential (ERP) for simultaneous audiovisual stimuli differed from the ERP for the sum of unisensory constituents during the encoding stage and occurred within a 236–530 ms timeframe over the frontal and parietal-occipital electrodes. The sLORETA images revealed a distributed network of brain areas that participate in the multisensory integration of WM. These results suggested that information inputs from different WM subsystems yielded nonlinear multisensory interactions and became integrated during the encoding stage. The multicomponent model of WM indicates that the central executive could play a critical role in the integration of information from different slave systems.
format	article
author	Yuanjun Xie Yuanyuan Xu Chen Bian Min Li
author_facet	Yuanjun Xie Yuanyuan Xu Chen Bian Min Li
author_sort	Yuanjun Xie
title	Semantic congruent audiovisual integration during the encoding stage of working memory: an ERP and sLORETA study
title_short	Semantic congruent audiovisual integration during the encoding stage of working memory: an ERP and sLORETA study
title_full	Semantic congruent audiovisual integration during the encoding stage of working memory: an ERP and sLORETA study
title_fullStr	Semantic congruent audiovisual integration during the encoding stage of working memory: an ERP and sLORETA study
title_full_unstemmed	Semantic congruent audiovisual integration during the encoding stage of working memory: an ERP and sLORETA study
title_sort	semantic congruent audiovisual integration during the encoding stage of working memory: an erp and sloreta study
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/cf9ae35c98f94554b6d7e0a410ee8dff
work_keys_str_mv	AT yuanjunxie semanticcongruentaudiovisualintegrationduringtheencodingstageofworkingmemoryanerpandsloretastudy AT yuanyuanxu semanticcongruentaudiovisualintegrationduringtheencodingstageofworkingmemoryanerpandsloretastudy AT chenbian semanticcongruentaudiovisualintegrationduringtheencodingstageofworkingmemoryanerpandsloretastudy AT minli semanticcongruentaudiovisualintegrationduringtheencodingstageofworkingmemoryanerpandsloretastudy
_version_	1718395071920865280

Semantic congruent audiovisual integration during the encoding stage of working memory: an ERP and sLORETA study

Ejemplares similares