Hi Sujith, sorry for the delay. The rule is that the voxel has to be within 5mm of the label. The unsegmented is the WM that is not within 5mm of any cortical label. Here is the ref https://surfer.nmr.mgh.harvard.edu/pub/articles/salat_2008.pdf

doug

On 02/07/2014 04:53 PM, sujith vijayan wrote:

Hi All,

I have a couple of question about wmparc:

What rule is used to determine what grey matter structure is reported for a point in the white matter?

What exactly has to be the case when UnsegmentedWhiteMatter is reported?

Is there a reference you could point me to?

Thanks, Sujith

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