Hello,
A reviewer disagreed with one of our conclusions and suggested we could prove our claim by creating Axial Diffusivity - Radial Diffusivity voxel based correlational maps. I wanted to verify that this can be accomplished by using the AD data as an input and loading the RD data as an additional voxel-dependent EV and setting up the contrast as normal.
Hypothetically no other variables:
Design:
EV1
1
1
1
1 EV2 = RD data
...
Contrasts:
0 1 --> AD and RD positively correlate
0 -1 --> AD and RD negatively correlate
Thanks,
Jeremy
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