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Combining independent component analysis and Granger causality to investigate brain network dynamics with fNIRS measurements
Yuan Z.
2013
Source PublicationBiomedical Optics Express
ISSN21567085
Volume4Issue:11Pages:2629
Abstract

In this study a new strategy that combines Granger causality mapping (GCM) and independent component analysis (ICA) is proposed to reveal complex neural network dynamics underlying cognitive processes using functional near infrared spectroscopy (fNIRS) measurements. The GCM-ICA algorithm implements the following two procedures: (i) extraction of the region of interests (ROIs) of cortical activations by ICA, and (ii) estimation of the direct causal influences in local brain networks using Granger causality among voxels of ROIs. Our results show that the use of GCM in conjunction with ICA is able to effectively identify the directional brain network dynamics in time-frequency domain based on fNIRS recordings. © 2013 Optical Society of America.

DOI10.1364/BOE.4.002629
URLView the original
Indexed BySCI
Language英语
WOS Research AreaBiochemistry & Molecular Biology ; Optics ; Radiology, Nuclear Medicine & Medical Imaging
WOS SubjectBiochemistry & Molecular Biology ; Optics ; Radiology, Nuclear Medicine & Medical Imaging
WOS IDWOS:000326582500030
The Source to ArticleScopus
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Cited Times [WOS]:34   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionFaculty of Health Sciences
AffiliationUniv Macau, Bioimaging Core, Fac Hlth Sci, Av Padre Tomas Pereira, Taipa, Macau, Peoples R China.
First Author AffilicationUniversity of Macau
Recommended Citation
GB/T 7714
Yuan Z.. Combining independent component analysis and Granger causality to investigate brain network dynamics with fNIRS measurements[J]. Biomedical Optics Express,2013,4(11):2629.
APA Yuan Z..(2013).Combining independent component analysis and Granger causality to investigate brain network dynamics with fNIRS measurements.Biomedical Optics Express,4(11),2629.
MLA Yuan Z.."Combining independent component analysis and Granger causality to investigate brain network dynamics with fNIRS measurements".Biomedical Optics Express 4.11(2013):2629.
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