Please use this identifier to cite or link to this item: https://doi.org/10.1117/1.JBO.18.1.017003
Title: Reduction of trial-to-trial variability in functional near-infrared spectroscopy signals by accounting for resting-state functional connectivity
Authors: Hu, X.-S.
Hong, K.-S.
Ge, S.S. 
Keywords: Correlated spontaneous low-frequency hemodynamic fluctuations
Functional near-infrared spectroscopy
Resting-state functional connectivity
Trial-to-trial variation
Issue Date: 2013
Citation: Hu, X.-S., Hong, K.-S., Ge, S.S. (2013). Reduction of trial-to-trial variability in functional near-infrared spectroscopy signals by accounting for resting-state functional connectivity. Journal of Biomedical Optics 18 (1) : -. ScholarBank@NUS Repository. https://doi.org/10.1117/1.JBO.18.1.017003
Abstract: The reduction of trial-to-trial variability (TTV) in task-evoked functional near-infrared spectroscopy signals by considering the correlated low-frequency spontaneous fluctuations that account for the resting-state functional connectivity in the brain is investigated. A resting-state session followed by a task-state session of a right hand fingertapping task has been performed on five subjects. Significant ipsilateral and bilateral resting-state functional connectivity has been detected at the subjects' motor cortex using the seed correlation method. The correlation coefficients obtained during the resting-state are used to reduce the TTV in the signals measured during the task sessions. The results suggest that correlated spontaneous low-frequency fluctuations contribute significantly to the TTV in the task evoked fNIRS signals.© 2013 Society of Photo-Optical Instrumentation Engineers.
Source Title: Journal of Biomedical Optics
URI: http://scholarbank.nus.edu.sg/handle/10635/57228
ISSN: 10833668
DOI: 10.1117/1.JBO.18.1.017003
Appears in Collections:Staff Publications

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