Hi,
> I have a group of 21 patients on which I am
> extracting the hrf waveforms for different event types from an ROI. I
> want to average the hrf's for all 21 patients so I have one hrf waveform
> which represents the patient group. I am using the SPM design matrix to
> specify the event types in Marsbar. I am planning on drawing an ROI for
> each patient and then extracting the hrf's, is there any way to avreage
> the hrf waveforms of all patients using Marsbar?
Not directly, but if you use something like the script in the FAQ:
http://marsbar.sourceforge.net/faq.html#extract_fir
you can extract the timecourses into a matrix, and average them using matlab...
Best,
Matthew
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