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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Karelo
December 01, 2020 12:06PM
Dear AFNI experts:

Is it possible to run AFNI group analysis related functions (3dttest++, 3dANOVA, 3dLMEr) using surfaces instead of volumetric data?

If so, I am interested to do a multiple regression with the following variables:
- Dependent variable = the surface.
- Independent variables/regressors = 7 physiological measures (3 main effects and 4 interaction effects).
- 4 covariates.

Could 3dLMEr may be a good approach to handle that regression?

Finally, I am interested to performed permutations and apply FWEr correction. I knew that ETAC could do something like that in t-test analysis. But, Is it possible to do something similar as ETAC does in 3dLMEr's output (also considering that I am using surfaces as dependent variable)?

If you could help me with my queries I would greatly appreciate it

Best regards,
Karel
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Subject Author Posted

Group analysis and clustering using surfaces

Karelo December 01, 2020 12:06PM

Re: Group analysis and clustering using surfaces

gang December 02, 2020 11:32AM

Re: Group analysis and clustering using surfaces

Karelo December 03, 2020 10:45AM

Re: Group analysis and clustering using surfaces

gang December 04, 2020 12:23PM