論文

査読有り
2014年

A MODEL-FREE APPROACH TO INCREASING THE EFFECT SIZE OF FNIRS DATA

2014 IEEE WORKSHOP ON STATISTICAL SIGNAL PROCESSING (SSP)
  • Adnan Shah
  • ,
  • Abd-Krim Seghouane

開始ページ
77
終了ページ
80
記述言語
英語
掲載種別
研究論文(国際会議プロシーディングス)
DOI
10.1109/SSP.2014.6884579
出版者・発行元
IEEE

Localizing brain activity in noisy functional near-infrared spectroscopy (fNIRS) data plays an important role when investigating task-related hemodynamics of the neuronal sites. We present a novel method for capturing drifts in the fNIRS data which increases the effect size of interest of the oxygenated (HbO) and deoxygenated (HbR) hemoglobin responses. Using linear least-squares, a consistent hemodynamic response function (HRF) of the fNIRS HbO/HbR response is estimated as a first-step that leads to an optimal estimate of the drift based on a wavelet thresholding technique. The de-drifted fNIRS responses are then obtained by removing the estimated drifts from the fNIRS time-series. Its performance is assessed using both simulated data and a real fNIRS data set obtained from a finger tapping task. The application results reveal that the proposed model-free method performs optimal de-drifting and increases the effect size of the fNIRS data.

リンク情報
DOI
https://doi.org/10.1109/SSP.2014.6884579
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000361019700020&DestApp=WOS_CPL
URL
http://www.scopus.com/inward/record.url?eid=2-s2.0-84907399060&partnerID=MN8TOARS
URL
http://orcid.org/0000-0003-2942-0183
ID情報
  • DOI : 10.1109/SSP.2014.6884579
  • ORCIDのPut Code : 48212738
  • SCOPUS ID : 84907399060
  • Web of Science ID : WOS:000361019700020

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