Hello,
From what you are saying the stim-active.txt file should not have those events at time 180 (time 180 should be for passive). As it stands, there are events at 0 and at 180, and each lasts for 180 s, which is the same as a single event that lasts for 360 s.
So stim-active.txt should probably look like:
0 *
0 *
0 *
Where the '*' characters are to make it look like "local" timing, rather than global. Otherwise, you could put "-local_times" before the -stim_times options. and just have a column of 0's.
Note that the results might be surprisingly noisy. The blocks are very long, so baseline drifts highly correlate with the regressors of interest. Also, the 2 regressors of interest will have correlations close to -1, they are almost negatives of each other (their sum would be practically a flat line). That seems a bit problematic.
- rick
