hi :
I ran Melodic to fMRI data, which gave me a bunch of independent components(ICs). I thought these ICs should be orthogonal to each other since they are the eigenvectors of the covariance matrix. But when I applied dot product to these ICs, I found the resaults are not actually 0, which means these ICs are not orthogonal to each other. I couldn't understand this. Are they supposeed to be orthogonal? How do we get these ICs?
Thanks a lot
Xuelin
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Xuelin Cui
Department of Electrical Engineering
University of Hawaii-Manoa
Honolulu HI 96822
Tel: 1-808-349-0983
Email: [log in to unmask]
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