Hi, experts,
I am trying to use the template fsaverage_sym and tried to map the same set of vertices onto the left and right pial surface. Surprisingly, these vertices on the two surfaces did not correspond to the same anatomical cortical regions. Sometimes, they correspond to each other very badly. For instance, one is mapped onto the lateral surface on the left pial surface, the other may be mapped onto the medial surface on the opposite hemisphere, I can not see their symmetry.
Any comment?