Stockwell Coherence and its Application in Studying Motor Cortices under the Multi-Source Interference Task

摘要：

Coherence function plays an important role in measuring brain functional connectivity. In this paper, we extend the definition of coherence function from the classic Fourier domain to the time-frequency plane using the Stockwell transform. This extension has advantages over other existing time-varying coherence functions in terms of easy interpretation and fast computation. An application of our approach to an MEG study reveals interesting temporal interaction between contralateral and ipsilateral motor cortices under the multi-source interference task.

关键词： Coherence function Stockwell transform brain functional connectivity multi-source interference task

作者: Cheng Liu William Gaetz Hongmei Zhu

作者单位: Department of Mathematics and Statistics,York University,Toronto,ON,Canada,M3J 1P3 Department of Medical Imaging,University of Toronto,Toronto,ON,Canada,M5S 1A1

会议类型: 国际会议

会议名称: The 3rd International Conference on Bioinformatics and Biomedical Engineering(iCBBE 2009)(第三届生物信息与生物医学工程国际会议)

会议地点: 北京

会议语种:英文

页码: 1-4

在线出版日期: 2009-06-11（万方平台首次上网日期，不代表论文的发表时间）