2014年
A MODEL-FREE APPROACH TO INCREASING THE EFFECT SIZE OF FNIRS DATA
2014 IEEE WORKSHOP ON STATISTICAL SIGNAL PROCESSING (SSP)
- ,
- 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