When you run isxconcat-sess, specify all subjects, then just follow the examples here
https://surfer.nmr.mgh.harvard.edu/fswiki/FsgdExamples
for two groups
On 03/03/2017 01:29 PM, Bailin, Emma wrote:
Hello,
I’m currently doing a resting state functional connectivity analysis. I have two groups and my ultimate goal is to compare the resting state network of group 1 to that of group 2.
What is the standard procedure for comparing resting state connectivity across groups?
I’ve followed the directions on the FsFast Functional Connectivity Walkthrough (http://surfer.nmr.mgh.harvard.edu/fswiki/FsFastFunctionalConnectivityWalkthr...) and after the isxconcat-sess, I did mri_glmfit --y ces.nii.gz –wls pcc.nii.gz –surface fsaverage lh –glmdir [my/group1.directory.wls} –nii.gz, for each group. This got me the mean for both groups individually. I’m now stuck on how to proceed to compare across my groups. Using mri_glmfit creates the problem of trying to pre-process each group without a variable for –measure, and I’m not sure if using the –iv flag with the ces.nii.gz or pcc.nii.gz is going to give me what I need.
Thank you.
--Emma Bailin
*Emma Bailin*
/Research Coordinator/
Laboratory for Visual Neuroplasticity
Schepens Eye Research Institute
Mass. Eye and Ear Infirmary
Harvard Medical School
Emma_Bailin@MEEI.harvard.edu mailto:Emma_Bailin@MEEI.harvard.edu
(617)-573-3794
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