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

History of AFNI updates  

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Aditya Prasad
October 21, 2008 03:16PM
In this script, 3dcalc is used to set the mean for each voxel to 100 before doing single-subject analysis:
[afni.nimh.nih.gov]

In the documentation of 3dcalc, it suggests doing that to help group analysis.

Which is more standard? This will of course affect my contrasts, but perhaps the *difference* in contrasts will still stand out regardless.
Subject Author Posted

3dcalc for single-subject normalization

Aditya Prasad October 21, 2008 03:16PM

Re: 3dcalc for single-subject normalization

rick reynolds October 21, 2008 06:27PM

Re: 3dcalc for single-subject normalization

Aditya October 22, 2008 01:01AM

Re: 3dcalc for single-subject normalization

rick reynolds October 22, 2008 09:07AM