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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Gang Chen
December 16, 2008 11:02AM
Similar to the Granger causality analysis in BrainVoyager, 3dGC.R adopts bivariate auto-regressive modeling, a pure exploratory method, and focuses only on the connection of a target voxel with a seed region in a bivariate fashion. It starts with a pre-selected seed region, and finds out the potential connectivity between the seed region and the rest of the brain. This exploratory step may help select regions of interest for multivariate auto-regressive modeling with 1dGC.R. More details about the program can be found at

http://afni.nimh.nih.gov/sscc/gangc/3dGC
[afni.nimh.nih.gov]

Gang
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New program 3dGC available for exploratory Granger causality analysis

Gang Chen December 16, 2008 11:02AM