Dear FSL
I have a seed region of interest and would like to examine differences in connectivity between this region and the rest of the brain in two groups. I have extracted a time series for the seed region in each individual, which I then normalized (mean zero, sd 1) and submitted as a regressor in a first level GLM. As a result I have z-maps which I want to enter into the group analysis. I have two related questions. Firstly can I get 'correlation coefficient maps' from the statistical maps I have at first level? Secondly to do the group analysis I know the input data maps need to be Fisher z transformed but I'm not sure how to implement this. Are there any sources that explain the process?
Thanks in adv advance
David
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