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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bob cox
September 24, 2003 01:39PM
After converting your results from 3dDeconvolve to percent change (you can search the message board history for info on this), you then need to define your ROI. This can be done in a couple of ways:

(1) Draw an anatomically-based ROI using the Draw Dataset plugin
(2) Define ROIs by connected clusters of supra-threshold voxels with 3dmerge

Once you have the ROI dataset, you then can extract statistics averaged over the ROI(s) using programs 3dmaskave, 3dROIstats, and 3dmaskdump.

bob cox
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Subject Author Posted

fMRI signal intensity within a ROI

Xu, Jiansong September 23, 2003 12:48PM

Re: fMRI signal intensity within a ROI

bob cox September 24, 2003 01:39PM