Hi Mark,
Thank you so much for your advices.
I tried the method you suggested. I cut the data at the end of the first five minutes, adjusted the timing of the ratings and passive movement periods and rerun all the steps (mcflirt, extraction of csf-wm regressors, preprocessing with HPF at 200s + GLM analyses) and I still don't get the activation back.
The issue really seems to be due to the HPF. As soon as I am turning it back on, I am loosing all the activation. Is there anything else I can try to get rid of the noise without loosing the activation? Could using a different HPF (maybe 100s) help?
Best,
Marie-Eve
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