The result of the brain structure transformation is shown on the BRAIN SEGMENTS page.
For the atlases with population tissue probability maps the white matter tissue probability map can be used to allow the intersection of the population white matter region with the selected atlas. This can be easily achieved by enabling the White matter atlas VOIs box.
Please define the result space, the gray and white matter masking, optionally CSF masking, and start the VOI outlining process using the Outline action button.
The GM, WM and CSF masking process is identical to the one described in the Workflow for Functional and Anatomical PET.