第十五期 fNIRS Journal Club 通知 2020/12/27,10am

51 sec read

胡玥

香港中文大学二年级博士生胡玥为大家介绍一篇方法学文献,即基于人工神经网络重構的多通道fNIRS信号运动伪影校正。该方法不仅对心理学,还对运动科学以及康复医学等领域的研究具有重要的参考价值,热烈欢迎大家参与讨论。

时间: 北京时间2020年12月27日周日上午10点
地点: https://zoom.com
房间号: 859 4100 6556
密码: 467563

Lee, G., Jin, S. H., & An, J. (2018). Motion artifact correction of multi-measured functional near-infrared spectroscopy signals based on signal reconstruction using an artificial neural network. Sensors, 18(9), 2957. 点击查看

该文献的PUBMED信息
PMID: 30189651 
PMCID: PMC6164948 
DOI: 10.3390/s18092957

Abstract: In this paper, a new motion artifact correction method is proposed based on multi-channel functional near-infrared spectroscopy (fNIRS) signals. Recently, wavelet transform and hemodynamic response function-based algorithms were proposed as methods of denoising and detrending fNIRS signals. However, these techniques cannot achieve impressive performance in the experimental environment with lots of movement such as gait and rehabilitation tasks because hemodynamic responses have features similar to those of motion artifacts. Moreover, it is difficult to correct motion artifacts in multi-measured fNIRS systems, which have multiple channels and different noise features in each channel. Thus, a new motion artifact correction method for multi-measured fNIRS is proposed in this study, which includes a decision algorithm to determine the most contaminated fNIRS channel based on entropy and a reconstruction algorithm to correct motion artifacts by using a wavelet-decomposed back-propagation neural network. The experimental data was achieved from six subjects and the results were analyzed in comparing conventional algorithms such as HRF smoothing, wavelet denoising, and wavelet MDL. The performance of the proposed method was proven experimentally using the graphical results of the corrected fNIRS signal, CNR that is a performance evaluation index, and the brain activation map.

第十八期 fNIRS Journal Club 通知 2021/04/25,10am

北京师范大学的朱朝喆教授将为大家讲解他们最近几年在经颅脑图谱(Transcranial brain Atlas) 方面做的工作。热烈欢迎大家参与讨论。 时间: 北京时间2021年4月25日周日上午10点地点: https://zoom.com房间号: 863 1929 4069密码: 113560 朱朝喆教授简介:北京师范大学教授、博士生导师;认知神经科学与学习国家重点实验室,脑成像与神经调控实验室负责人(PI), 主要从事 fNIRS 脑成像与 TMS 神经调控相关理论研究与新技术开发。主持国家自然科学基金委重点项目、科技部重大仪器专项课题等。在 Science Advances,Brain 等期刊发表 SCI 论文八十余篇,SCI 引用 11851...
Xu Cui
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第十七期 fNIRS Journal Club 视频

北京时间2021年3月27日周六10点,北京师范大学的卢春明教授为大家讲解他们最近发布的一篇用超扫描研究恋爱关系的文章。视频如下: Youtube: https://youtu.be/YdudwqgC8yk Youku: https://v.youku.com/v_show/id_XNTEyODIzMzcyNA==.html
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第十七期 fNIRS Journal Club 通知 2021/03/27,10am

北京师范大学的卢春明教授将为大家讲解他们最近发布的一篇用超扫描研究恋爱关系的文章。热烈欢迎大家参与讨论。 时间: 北京时间2021年3月27日周六上午10点地点: https://zoom.com房间号: 870 6817 2529 密码: 433527 Long, Zheng, Zhao, Zhou, Zhai, Lu (2020) Interpersonal Neural Synchronization during Interpersonal Touch Underlies Affiliative...
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