Dear List,
I would like to do a simple subtraction analysis using the spatially
normalized images from two groups.
Using Imcalc, I got the average-images of the two groups and substracted
them to get the activation/deactivation images. Would you mind showing me
how to do the following with Imcalc?
1)select a threshold for masking and exclude all voxels below that
threshold.
2)Calculate the variance across all voxels and divide the masked
activation/deactivation image by the variance.
3)Exclude areas with unusually high variance.
Thank you,
Nathan Klimenko
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