Dear FS's experts,
Projecting volumic data onto native surface (brain mask: "Unknown_S_calcarine_ROI_mask.jpg"), I observed that a thin region in the S_calcarine was set to 0.
I loaded then the inflated left surface and the l.aparc.a2009s.annot ("Unknown_S_calcarine_ROI_annot.jpg") and took into account that this region inside the S_calcarine was set as "unknown" in the parcellation file .
What does it mean and is this possible to correct for this ?
Best regards, Matthieu