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Dear Expert,

By using FAST segmentation tool I obtained segmented GM, WM and CSF. I want extract time series of WM, and CSF by using fsl meants. 

I would like to know Is there any steps before extracting time series from these segmented images?

To extract time series should I use raw BOLD sequence or filtered..image produced by FEAT preprocessing steps?

Please provide the steps to extract time series from WM and CSF.

Thanks in advance
Ramesh