group analysis

Submitted by efine on Wed, 01/26/2011 - 05:34

Hi,

I just wanted to confirm a few details.

Using DPARSFA, I performed ROI-based analyses with several ROIs. I was interested in the relationship between connectivity between 2 ROIs and a behavioral measure. I also wanted to examine on a voxel wise level the relationship between a seed and a behavioral covariate (whole-brain). In the /results/FC folder there appears to be an FC map and zFC map for each ROI, for each subject. So for ROI #1, does the FC and zMAP for subject #1 reflect the whole-brain analysis with ROI #1 as the seed? So would this be what I would then use for the group-level analysis. Also would there be a way to add the behavioral covariate for the group-analysis? I can to this SPM, but was curious about how to do it in REST.

Much appreciated as always,

Eric

Submitted by YAN Chao-Gan on Sun, 02/13/2011 - 15:31

Dear Eric,
Sorry for the delay because of the Chinese Spring Festival Holiday.
1. So for ROI #1, does the FC and zMAP for subject #1 reflect the whole-brain analysis with ROI #1 as the seed?
Yes. For example, "ROI1FCMap_Sub_001.img" means the voxel-wise FC map of ROI #1 for subject #1.
2. Also would there be a way to add the behavioral covariate for the group-analysis?
Yes. There is a Statistical Module in the latest REST. You can add behavioral covariate (also even Image covariate) into group analysis in this module.
Best wishes!