ROI-wise Functional Connectivity in REST

Submitted by nertman on Fri, 06/21/2013 - 03:01

 Hi, I just finished running a functional connectivity analysis using the REST toolbox. I am looking at the FC between 2 regions so I entered those as ROIs and chose ROI-wise analysis.

The output is a series of txt files and I am wondering what exactly the numbers in the txt files represent? I am guessing that:

  • FCMap_*.txt is the Pearson's correlation between the time course of the two selected ROIs? 
  • ROI_FCMap_*.txt is the Pearson's correlation between the time course of each ROI and other voxels in the brain (not sure which)?
  • zFCMap_*.txt is a z-transformed Pearson's correlation between the time course of the two selected ROIs?

Thanks for any help!


Submitted by rakesh on Mon, 03/30/2015 - 13:54

Dear experts of rest toolkit
I would like to perform a ROI FC analysis between 2 ROI
i have followed the instructions as described in the manual.
i received 4 values in the text file FCMap_subject_01.txt
as follows

1.0000000000000000e+000      7.9840100547770776e-001     
  7.9840100547770787e-001      1.0000000000000000e+000  

what are these values what is the exact correlation cofficient between these 2 ROI

thank you in advance

Regards

Rakesh