Causality in the association between P300 and alpha event-related desynchronization.

Recent findings indicated that both P300 and alpha event-related desynchronization (α-ERD) were associated, and similarly involved in cognitive brain functioning, e.g., attention allocation and memory updating. However, an explicit causal influence between the neural generators of P300 and α-ERD has...

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Autores principales:	Weiwei Peng, Li Hu, Zhiguo Zhang, Yong Hu
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2012
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/d6a4a6f4101545b7b687aa143808d445
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spelling	oai:doaj.org-article:d6a4a6f4101545b7b687aa143808d4452021-11-18T07:22:28ZCausality in the association between P300 and alpha event-related desynchronization.1932-620310.1371/journal.pone.0034163https://doaj.org/article/d6a4a6f4101545b7b687aa143808d4452012-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/22511933/?tool=EBIhttps://doaj.org/toc/1932-6203Recent findings indicated that both P300 and alpha event-related desynchronization (α-ERD) were associated, and similarly involved in cognitive brain functioning, e.g., attention allocation and memory updating. However, an explicit causal influence between the neural generators of P300 and α-ERD has not yet been investigated. In the present study, using an oddball task paradigm, we assessed the task effect (target vs. non-target) on P300 and α-ERD elicited by stimuli of four sensory modalities, i.e., audition, vision, somatosensory, and pain, estimated their respective neural generators, and investigated the information flow among their neural generators using time-varying effective connectivity in the target condition. Across sensory modalities, the scalp topographies of P300 and α-ERD were similar and respectively maximal at parietal and occipital regions in the target condition. Source analysis revealed that P300 and α-ERD were mainly generated from posterior cingulate cortex and occipital lobe respectively. As revealed by time-varying effective connectivity, the cortical information was consistently flowed from α-ERD sources to P300 sources in the target condition for all four sensory modalities. All these findings showed that P300 in the target condition is modulated by the changes of α-ERD, which would be useful to explore neural mechanism of cognitive information processing in the human brain.Weiwei PengLi HuZhiguo ZhangYong HuPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 7, Iss 4, p e34163 (2012)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Weiwei Peng Li Hu Zhiguo Zhang Yong Hu Causality in the association between P300 and alpha event-related desynchronization.
description	Recent findings indicated that both P300 and alpha event-related desynchronization (α-ERD) were associated, and similarly involved in cognitive brain functioning, e.g., attention allocation and memory updating. However, an explicit causal influence between the neural generators of P300 and α-ERD has not yet been investigated. In the present study, using an oddball task paradigm, we assessed the task effect (target vs. non-target) on P300 and α-ERD elicited by stimuli of four sensory modalities, i.e., audition, vision, somatosensory, and pain, estimated their respective neural generators, and investigated the information flow among their neural generators using time-varying effective connectivity in the target condition. Across sensory modalities, the scalp topographies of P300 and α-ERD were similar and respectively maximal at parietal and occipital regions in the target condition. Source analysis revealed that P300 and α-ERD were mainly generated from posterior cingulate cortex and occipital lobe respectively. As revealed by time-varying effective connectivity, the cortical information was consistently flowed from α-ERD sources to P300 sources in the target condition for all four sensory modalities. All these findings showed that P300 in the target condition is modulated by the changes of α-ERD, which would be useful to explore neural mechanism of cognitive information processing in the human brain.
format	article
author	Weiwei Peng Li Hu Zhiguo Zhang Yong Hu
author_facet	Weiwei Peng Li Hu Zhiguo Zhang Yong Hu
author_sort	Weiwei Peng
title	Causality in the association between P300 and alpha event-related desynchronization.
title_short	Causality in the association between P300 and alpha event-related desynchronization.
title_full	Causality in the association between P300 and alpha event-related desynchronization.
title_fullStr	Causality in the association between P300 and alpha event-related desynchronization.
title_full_unstemmed	Causality in the association between P300 and alpha event-related desynchronization.
title_sort	causality in the association between p300 and alpha event-related desynchronization.
publisher	Public Library of Science (PLoS)
publishDate	2012
url	https://doaj.org/article/d6a4a6f4101545b7b687aa143808d445
work_keys_str_mv	AT weiweipeng causalityintheassociationbetweenp300andalphaeventrelateddesynchronization AT lihu causalityintheassociationbetweenp300andalphaeventrelateddesynchronization AT zhiguozhang causalityintheassociationbetweenp300andalphaeventrelateddesynchronization AT yonghu causalityintheassociationbetweenp300andalphaeventrelateddesynchronization
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Causality in the association between P300 and alpha event-related desynchronization.

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