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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Seul
September 25, 2014 06:00PM
Hello,

I would like to find correlation map in Resting -state FMRI using AFNI.
I tried to use 3dMaskAve and 3dfim+ for that.

Also, I used InstaCorr for the analysis, but I am not sure about several options in InstaCorr.
I want to use several voxels as an ROI (that is drawn as a nifti file in FSL), not just 1 voxel.
I am not sure if the "multiple voxels" can be used as an ROI instead of 1 voxel.
(From my understanding, InstaCorr can use single voxel as an ROI by clicking 'InstaCorr set' button.)

In InstaCorr Setup window, there is Misc opts menu, and when I clicked that, I can control 'SeedRad' .
Does 'SeedRad' mean that I can control the size of ROI in mm? Even though I clicked single voxel and clicked 'InstaCorr set' button, does AFNI calculate correlation using the resized ROI?

Thank you for your help.

Seul
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single subject_ROI in InstaCorr

Seul September 25, 2014 06:00PM

Re: single subject_ROI in InstaCorr

ptaylor September 25, 2014 07:27PM

Re: single subject_ROI in InstaCorr

Seul September 26, 2014 02:12PM