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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October 26, 2016 10:37AM
That's really clever to use the t-stat Gang! Makes life considerably easier.

In my (now outdated) way of doing things, z-scoring the data would convert the b-value of the regression to a standardized regression coefficient (beta), which in simple regression is a correlation. So if you centered both of your datasets (MRI and covariates) the correlation value would appear in the "mean" column for the covariate. Whereas if you just convert the t-stat of the covariate from t --> R, you get the same value.
Subject Author Posted

Correlating behavior measures with fmri data

mrif October 25, 2016 12:05PM

Re: Correlating behavior measures with fmri data

Peter Molfese October 25, 2016 12:26PM

Re: Correlating behavior measures with fmri data

gang October 25, 2016 12:40PM

Re: Correlating behavior measures with fmri data

AHM August 29, 2019 09:08AM

Re: Correlating behavior measures with fmri data

gang August 29, 2019 05:56PM

Re: Correlating behavior measures with fmri data

mrif October 25, 2016 04:22PM

Re: Correlating behavior measures with fmri data

gang October 25, 2016 09:09PM

Re: Correlating behavior measures with fmri data

Peter Molfese October 26, 2016 10:37AM

Re: Correlating behavior measures with fmri data

mrif October 28, 2016 04:48PM

Re: Correlating behavior measures with fmri data

bb2958 September 04, 2019 01:50PM

Re: Correlating behavior measures with fmri data

gang September 04, 2019 01:56PM

Re: Correlating behavior measures with fmri data

bb2958 September 04, 2019 02:25PM