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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henrybrice
November 01, 2016 04:50PM
I am using the SFNR output as a voxel-wise covariate in 3dMVM, partly because my study includes multiple scanners, and I want to make sure that cohort differences aren't being affected by different SNR at different sites.

I can add the sfnr as a nuisance variable and it runs just fine, however if I try to add a contrast including SFNR (by adding, e.g. -gltCode 50 'Group 1*site1 sfnr : ' ) then I get the error

** Error:
Incorrect level coding in variable sfnr : :

Is it possible with the current 3dMVM program to get a contrast map including the voxel-wise variable?
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Subject Author Posted

SNFR as voxel-wise covariate in 3dMVM

henrybrice November 01, 2016 04:50PM

Re: SNFR as voxel-wise covariate in 3dMVM

gang November 02, 2016 12:31PM

Re: SNFR as voxel-wise covariate in 3dMVM

henrybrice November 02, 2016 03:03PM