Dear Matt,

Thank you for your email.

In "Resting State fMRI FIX-Denoised (Compact)" of 100 unrelated subjects,
inside folder "${StudyFolder}/${Subject}/MNINonLinear", there is only one
folder, "Results", which inside it there are four folders "rfMRI_REST1_LR",
"rfMRI_REST1_RL", "rfMRI_REST2_LR", "rfMRI_REST2_RL". And finally inside
each one of these folders, there are two "*.dtseries.nii" files and two
"*.dtscalar.nii" files. So basically, in "Resting State fMRI FIX-Denoised
(Compact)" of 100 unrelated subjects, there is not any folder with the name
of "fsaverage_LR32k". However, I checked the other data-sets of 100
unrelated subjects, and I found that "Structural Preprocessed" of 100
unrelated subjects has the  "fsaverage_LR32k" folder with the files that
you mentioned. So my question is that, do we need to download this data-set
too so to be able to get the coordinates of surface time-series?

Also, I have three other questions:

1) Which one of these "*.dtseries.nii" files do you recommend that we use:

rfMRI_REST1_LR_Atlas_hp2000_clean.dtseries.nii
rfMRI_REST1_LR_Atlas_MSMAll_hp2000_clean.dtseries.nii

2) For example, for subject 100307 and for left hemisphere, which one of
these three "*.surf.gii" files do you recommend that we use:

100307.L.inflated.32k_fs_LR.surf.gii
100307.L.midthickness.32k_fs_LR.surf.gii
100307.L.very_inflated.32k_fs_LR.surf.gii

3) I assume that with "rfMRI_REST1_LR_Atlas_hp2000_clean.dtseries.nii", we
should use one of the three above "*.surf.gii" files and with "
rfMRI_REST1_LR_Atlas_MSMAll_hp2000_clean.dtseries.nii", we should use one
of the three below "*.surf.gii" files:

100307.L.inflated_MSMAll.32k_fs_LR.surf.gii
100307.L.midthickness_MSMAll.32k_fs_LR.surf.gii
100307.L.very_inflated_MSMAll.32k_fs_LR.surf.gii

Am I right?

Many many thanks in advance for your time and consideration.

Best regards,

Aslan

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