Hi,
Strictly speaking: you can't (- at least not by just running a single experiment and analysing it;)
However, you can simply correlate your design (boxcar or, for event-related studies namely, your stimulus-/response-ons convolved with some type of HRF) with the time-course (in SD units) of the respective tXX.txt file. Or even easier, if you have no spatial hypothesis whatsoever, select those Ics whose FFT are peaking at the appropriate frequency and then look at the time-courses, if they are synchronous to your paradigm.
Hope that helps-
Andreas
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Von: FSL - FMRIB's Software Library [mailto:[log in to unmask]] Im Auftrag von Xuelin Cui
Gesendet: Dienstag, 20. März 2007 00:55
An: [log in to unmask]
Betreff: [FSL] how to relate each IC to different tasks?
hi folks:
I here have a question. I am doing the ICA analysis on fMRI data. But I am confused on how to relate rach IC extracted from the fMRI data to different tasks. Put in this way: if I see an IC, how can I tell the IC is caused by what kind of reason?
Anyone could give any suggestions? I really appreciate your thoughts.
Thanks
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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