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.
Can you obtain the residuals (not mean squared sum of residuals) from your VBM analysis? If so, you can use 3dFWHMx to estimate the ACF values based on the residuals from the VBM analysis, and then feed them into 3dClustSim.