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Sorry, I meant to say "I observed those time course, but COULDN'T see anything that are possiblly related to our task. " Xuelin **************************************** Xuelin Cui Department of Electrical Engineering University of Hawaii-Manoa Honolulu HI 96822 Tel: 1-808-349-0983 Email: [log in to unmask] **************************************** ----- Original Message ----- From: Xuelin Cui <[log in to unmask]> Date: Monday, May 14, 2007 5:57 pm Subject: [FSL] ICA question: Is time course strongly related to external stimulus? To: [log in to unmask] > Dear folks: > > I ran MELODIC to the fMRI data, and have a bunch of spatial ICs as > well as some time course. I observed those time course, but could > see anything that are possiblly related to our task. Since the > unmixing matrix is solved by FastICA basically, is it really > obviously related to external task? ex. If my external task is > like periodic spikes in time domain, am I supposed see there is > one time course looking like periodic spike, and thus its fourier > spectrum is concentrated at some certain frequency? > > Thanks a lot > > Xuelin > > **************************************** > Xuelin Cui > Department of Electrical Engineering > University of Hawaii-Manoa > Honolulu HI 96822 > > Tel: 1-808-349-0983 > Email: [log in to unmask] > **************************************** >