I have a repetition suppression / enhancement study. Alternating video stimuli are presented as follows:
A B A B
I compare the first and last presentations to measure the suppression or enhancement effect. Like so:
# A B A B C1 = ' 1 0 0 -1' C2 = '-1 0 0 1'
So the T-image of C1 shows suppression effects, and the T-image of C2 shows enhancement effects.
Now what I would like to do is see where these two T-images differ.
One way I could do this is to binarize the thresholded images, then do a boolean exclusive-or of the two. Voxels that are different between the two will be true, and voxels that are equal will be false.
Is this an appropriate way to do this?
Is there a better way?