mri_concat --f pib_lh_fsaverage (textfile of subjects and their images) --o concat_lh_pet.mgh

Should I add -mean here for the GLM?

mri_glmfit  --y  concat_lh_pet.mgh  --fsgd  pib_fsgd  --C group1.group2.mtx  --surf fsaverage lh  --cortex  --glmdir lh.pet.glmdir

My simple 2 group-no-covariates FSGD is as follows. Can I also check that it is alright to have the Groups interspersed throughout the order?

GroupDescriptorFile 1

Title OSGM

Class Group1

Class Group2

input FS6_16084_MPRAGE_Neuro.nii Group1

input FS6_22769_MPRAGE_Neuro.nii Group1

input FS6_22863_MPRAGE_Neuro.nii Group1

input FS6_22899_MPRAGE_Neuro.nii Group1

input FS6_22995_MPRAGE_Neuro.nii Group2

input FS6_23008_MPRAGE_Neuro.nii Group1

input FS6_23173_MPRAGE_Neuro.nii Group2

input FS6_23243_MPRAGE_Neuro.nii Group2

input FS6_23244_MPRAGE_Neuro.nii Group1

input FS6_23619_MPRAGE_Neuro.nii Group1

input FS6_23623_MPRAGE_Neuro.nii Group1

input FS6_23755_MPRAGE_Neuro.nii Group2

Thanks again, Doug. Appreciate it so much!

Best Wishes,

Elijah

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