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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ziad
April 15, 2014 11:13AM
Hello Josh,

Well, the design may be sub-optimal in that the response to cigarette is considerably correlated with that of the neutral cues. You should examine your design matrix to find out how correlated the two stimulus response models are. The more correlated two responses are the more data one needs to tell them apart. The program ExamineXmat can help you check on the amount of correlation present between your regressors. Also, afni_proc.py's review scripts provide some information on correlations between regressors.

cheers,
Ziad
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Subject Author Posted

3dDeconvolve Question

jgray7700 April 10, 2014 06:17PM

Re: 3dDeconvolve Question

ziad April 15, 2014 11:13AM