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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February 20, 2020 01:30PM
Hello,

In this case, they will not be the same. Your SA term is modeled by 2 regressors, not just 1. In such a case, the unspecified GLT will be evaluated as the sum of the components, meaning 'SYM: +SA' is the same as 'SYM: +SA[0] +SA[1]'. That sum is likely to wash out the individual components, to some degree.

If you want to compare directly, depending on which component you actually care about (likely the first), consider using something like:

-gltsym 'SYM: SA[0]' -glt_label 4 SA_0

- rick
Subject Author Posted

difference between 3dDeconvolve results for individual regressor vs. GLT with 1 term

lissariley February 20, 2020 12:59PM

Re: difference between 3dDeconvolve results for individual regressor vs. GLT with 1 term

rick reynolds February 20, 2020 01:30PM

Re: difference between 3dDeconvolve results for individual regressor vs. GLT with 1 term

lissariley February 20, 2020 01:48PM

Re: difference between 3dDeconvolve results for individual regressor vs. GLT with 1 term

rick reynolds February 20, 2020 03:42PM

Re: difference between 3dDeconvolve results for individual regressor vs. GLT with 1 term

lissariley March 12, 2020 02:21PM