Hi,
Is it valid to use a roi mask rather than the gm_mask created by the scripts?
What limitations are there on the choice of the mask?
I have read a published article in which the authors (using SPM) thresholded images to voxels with t values giving uncorrected p < 0.001. The probability of the remaining clusters was then corrected for multiple comparisons.
Is this OK, or is one limited to using anatomic roi masks?
Thx.........J
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