Re: [Freesurfer] One Group (One Factor), Two Covariates

I would like to find where the functional connectivity is correlated to VARIABLE 1 regressing out the VARIABLE 2.

How I should set my contrast.mtx?

Thanks

Stefano

Il 3 febbraio 2018 alle 19.57 Douglas Greve greve@nmr.mgh.harvard.edu ha scritto:

On 2/2/18 7:47 AM, stdp82@virgilio.it mailto: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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