Hi,

I have a question regarding how GCOR is calculated. As far as I understand it, GCOR was originally calculated as the average of correlation coefficients for a voxel with all other voxels. In the CONN implementation, however, a single value decomposition is done first, and GCOR is then calculated for each voxel as as the average of correlation coefficients for the voxel's time series with all the SVD time series. 

I guess my question is, whether there is done any weighting prior to the calculating the final GCOR value? I assume that the first SVD time series contains more variance than the following and so forth?

Kind regards, Martin