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Spatiotemporal and time-frequency analysis of functional near infrared spectroscopy brain signals using independent component analysis
Yuan Z.
2013-10-01
Source PublicationJournal of Biomedical Optics
ISSN10833668 15602281
Volume18Issue:10
Abstract

Functional near infrared spectroscopy (fNIRS) is a noninvasive method to capture brain activities according to the measurements of changes in both oxyhemoglobin and deoxyhemoglobin concentrations. However, fNIRS recordings are the hemodynamic signals that come from the latent neural sources that are spatially and temporally mixed across the brain. The purpose of this work is to extract the temporal and frequency characteristics as well as the spatial activation patterns in the brains using independent component analysis (ICA). In this study, the filtered fNIRS recordings were processed and the time-frequency and spatiotemporal domain independent components (ICs) were identified by ICA. We found that multiple task-related components can be separated by ICA in time-frequency domain, and distinct spatial patterns of brain activity can be derived from ICs that are well correlated with the specific neural events, such as finger tapping tasks. © 2013 Society of Photo-Optical Instrumentation Engineers.

KeywordCognitive Neurosciences Functional Near Infrared Spectroscopy Independent Component Analysis Neuroimaging Signal Processing Methods
DOI10.1117/1.JBO.18.10.106011
URLView the original
Indexed BySCI
WOS Research AreaBiochemistry & Molecular Biology ; Optics ; Radiology, Nuclear Medicine & Medical Imaging
WOS SubjectBiochemistry & Molecular Biology ; Optics ; Radiology, Nuclear Medicine & Medical Imaging
WOS IDWOS:000326563000043
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Cited Times [WOS]:20   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionFaculty of Health Sciences
AffiliationUniversidade de Macau
Recommended Citation
GB/T 7714
Yuan Z.. Spatiotemporal and time-frequency analysis of functional near infrared spectroscopy brain signals using independent component analysis[J]. Journal of Biomedical Optics,2013,18(10).
APA Yuan Z..(2013).Spatiotemporal and time-frequency analysis of functional near infrared spectroscopy brain signals using independent component analysis.Journal of Biomedical Optics,18(10).
MLA Yuan Z.."Spatiotemporal and time-frequency analysis of functional near infrared spectroscopy brain signals using independent component analysis".Journal of Biomedical Optics 18.10(2013).
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