Hi David,
thanks very much for your answer. Yes I am using the filtered data as input to the nuisance model where I've already applied the highpass filter. Also the white matter timeseries are extracted from that. So in the nuisance model I am doing only the motion parameter and white matter signal regression etc., and since I am not using the prestats tab (where the temp filtering check box is), no additional highpass filtering should be applied. I am not sure anymore if that's the case as the filters probably need to be applied to the motion parameters, so if it's true what you saying with regard to the automatic filtering then the white matter timeseries gets filtered twice?
Thanks again for any suggestions,
Cheers,
Torsten
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