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Nonlinear canonical correlation analysis of fMRI signals using HDR models

  • Defeng Wang*
  • , Lin Shi
  • , Daniel S. Yeung
  • , Eric C.C. Tsang
  • *此作品的通讯作者

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

A nonlinear canonical correlation analysis (CCA) for detecting neural activation in fMRI data is proposed in this paper. We use the BOLD response based on the HDR models with various parameters as reference signals. Instead of characterizing the relationship between the paradigm and time series using the oversimplified linear model, we employ the kernel trick that maps the intensities of the voxels within a small cubic at each time point into a high-dimensional kernel space, where the linear combinations correspond to nonlinear ones in the original space. The experimental results show that the proposed nonlinear CCA can improve the detection performance of traditional linear CCA.

源语言英语
主期刊名Proceedings of the 2005 27th Annual International Conference of the Engineering in Medicine and Biology Society, IEEE-EMBS 2005
5896-5899
页数4
出版状态已出版 - 2005
已对外发布
活动2005 27th Annual International Conference of the Engineering in Medicine and Biology Society, IEEE-EMBS 2005 - Shanghai, 中国
期限: 1 9月 20054 9月 2005

出版系列

姓名Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
7 VOLS
ISSN(印刷版)0589-1019

会议

会议2005 27th Annual International Conference of the Engineering in Medicine and Biology Society, IEEE-EMBS 2005
国家/地区中国
Shanghai
时期1/09/054/09/05

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