7/2/2004 SSCC/NIMH 27
Details of the Spec file:
¥The fields are:
HStateDef: Used to define the various states. This must be placed before any of the surfaces are specified.
HAnatomical: Used to indicate whether surface is anatomically correct (Y) or not (N).
HLocalDomainParent: Name of a surface whose mesh is shared by other surfaces in the spec file.
åThe default for FreeSurfer surfaces is the smoothed gray matter/ white matter boundary. For SureFit it is the fiducial surface. Use SAME when the LocalDomainParent for a surface is the surface itself. 
åAt the moment, only surfaces that are a Domain Parent are sent to AFNI. In the very near future, Anatomically Correct surfaces will be sent to AFNI regardless of their Domain Parent.
åA node-to-node correspondence is maintained across surfaces sharing the same domain parent.
HEmbedDimension: Embedding Dimension of the surface, 2 for surfaces in the flattened state, 3 for other.