Check for proper alignment and
defects
¥The Surface Volume and the surfaces must be in perfect alignment.
HIf you have an improper alignment, it should be
addressed here.
åThis should not happen for FreeSurfer and SureFit
surfaces created in the standard
fashion.
HWatch for error messages and warnings that come up in
the shell as the surfaces are read in.
These messages should be screened once
since they do not change unless the surfaceÕs geometry or topology is changed.
Hands-On
Note: Viewed without the volume underlay,
it is extremely difficult to tell if surface models with no topological defects accurately represent the
cortical surface.