AFNI Message Board

Dear AFNI users-

We are very pleased to announce that the new AFNI Message Board framework is up! Please join us at:

https://discuss.afni.nimh.nih.gov

Existing user accounts have been migrated, so returning users can login by requesting a password reset. New users can create accounts, as well, through a standard account creation process. Please note that these setup emails might initially go to spam folders (esp. for NIH users!), so please check those locations in the beginning.

The current Message Board discussion threads have been migrated to the new framework. The current Message Board will remain visible, but read-only, for a little while.

Sincerely, AFNI HQ

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sondosayyash
June 06, 2018 01:11PM
Hi there,
I am currently using the FATCAT commands in order to combine fmri and dti data.
However, I noticed that after performing the dual regression (on the functional data), in order to get z-score maps at the subject level, each subject contains a different number of ROIs (3dROIMaker step). We don't get the same number of ROI's across all subjects. Do you have any suggestions on how I can overcome this?

I was wondering if there was some way around this issue. I know with 3dNetCorr there is a "push_thru_zeros" option but how about the DTI side? Is there a way to run 3dtrackID without getting errors based on the different number of ROI's?

Also, how should I deal with a different number of ROI's per subject, when it comes to statistical analysis?

Thanks for your time.
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Subject Author Posted

Different number of ROI's per subject FATCAT

sondosayyash June 06, 2018 01:11PM

Re: Different number of ROI's per subject FATCAT

ptaylor June 06, 2018 01:30PM

Re: Different number of ROI's per subject FATCAT

sondosayyash June 12, 2018 07:41PM

Re: Different number of ROI's per subject FATCAT

ptaylor June 12, 2018 09:51PM