Question about output of functional connectivity analysis

Submitted by steph34 on
Hello, We recently used REST to run a seed-to-voxel connectivity analysis with various ROIs. We are interested in extracting the correlation coefficients for each subject so that we can look for relations with symptom severity. For each subject, there is an ROI_FC_map.txt file. There are 12 columns (for each ROI) and 160 rows (for each time point). However, I am confused since many of the values are greater than 1. Are these values supposed to be correlation coefficients (between -1 and +1)? Did we mess something up? Thanks, Stephanie

Online Video: Resting-State fMRI Free Webinar Course (Jan 25th, 2016)

Submitted by YAN Chao-Gan on
Forums
Share experiences
The Resting-State fMRI Free Webinar Course was held on Jan 25th, 2016. The focus of the course are the principles of R-fMRI and its applications to brain disorders, as well as data analysis with REST plus (Resting-State fMRI Data Analysis Toolkit) and DPARSF (Data Processing Assistant for Resting-State fMRI). 

Missing data

Submitted by chelsmar on
Forums
GraphVar

Dear Johann,

I have multiple clinical variables that I am interested in correlating with graph theory measures.  However, for a few of my subjects I am missing data for one of those clinical variables.  Can GraphVar handle missing data or should I exclude those subjects from all analyses?

Thank you!

Chelsea Cummiford

 

Creating nice brain graphics for publication - software ?

Submitted by David on
Forums
Others

Hi,

may I ask how the brain graphics (e.g. Fig 2, Fig 2 etc.) were  created in the paper: Standardizing the intrinsic brain: Towards robust measurement of inter-individual variation in 1000 functional connectomes. NeuroImage, 80, 246–262. doi:10.1016/j.neuroimage.2013.04.081

What kind of software did you use?

greetings :)

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