Sorry, I found an answer to my question in an older thread:

http://www.nitrc.org/forum/forum.php?thr...

Therfore, I would load the connectivity maps and preprocess them in order to get the mean timeseries  for those ROIs in the results/preprocessing folder:

ROI_Subject###_Condition###.mat files

Though, I am still not sure what the difference between d1data and d2data would mean.

Best,
Diana