Hi,
I would like to subtract only the voxels from my first level contrast files, in a given ROI, that survives FWE (0.05) correction for small volumes. I will then use the resulting files (the masked contrast files) for group analyses outside SPM. Would this be correct;
1) use the results batch and set FWE to 0.05, define the mask for the ROI and then export the results as a binary mask
2) use the new binary mask to extract the contrast values that survived the thresholding?
In other words, does using the ROI mask when thresholding in the results batch tell SPM to use FWE for small volumes instead of FWE based in the whole brain?
Input is highly appreciated!
Malin
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