I guess you could make the contrast [1 1 0], but I have no idea what the interpretation would be. I'll leave that up to you
On 2/4/18 8:58 AM, stdp82@virgilio.it wrote:
Thanks.
what do I do if I would like to maintain the effect of "main" in the points 2 and 3.
Best regards
Stefano
Re:_[Freesurfer]_One_Group_(One_Factor),_Two_Covariates.eml
Subject: Re: [Freesurfer] One Group (One Factor), Two Covariates From: Douglas Greve greve@nmr.mgh.harvard.edu Date: 2/3/18, 1:57 PM
To: freesurfer@nmr.mgh.harvard.edu
On 2/2/18 7:47 AM, stdp82@virgilio.it wrote:
Hi list,
in reference to One Group (One Factor), Two Covariates
https://surfer.nmr.mgh.harvard.edu/fswiki/Fsgdf1G2V#Contrast2age.mtx
that has been applied on FS-FAST fcMRI data
I obtain three folder, respectively, for "main", "covariate 1", "covariate 2".
What's meaning the sig.nii.gz that it is produced by mri_glmfit in each folder? Please correct my conclusions if they are wrong.
1 - In the "Main" folder, the sig.nii.gz contains the results of One-sample t test regressing out the effect of the two covariates.
Correct
2 - In the "Covariate 1" folder, the sig.nii.gz contains the significant cluster that are associated with the covariate 1 regressing out the effect for the covariate 2.
Yes (and the main)
3 - In the "Covariate 2" folder, the sig.nii.gz contains the significant cluster that are associated with the covariate 2 regressing out the effect for the covariate 1.
Yes (and regressing out the main)
Thanks
Stefano
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