Hi Kaitlin,

When using batch commands you do not need to explicitly define whether you will be using 'session-specific' or 'session-invariant' data, that is implicitly derived from the way you enter the corresponding files. In particular, when defining your structural data, if you use a single filename for each subject, such as:

  batch.Setup.structurals{1} = '/data/subject1/struct.img';
  batch.Setup.structurals{2} = '/data/subject2/struct.img';
  ...

those are interpreted to be session-invariant structural files (one file per subject), while if you use a list of filenames, such as:

  batch.Setup.structurals{1} = { '/data/subject1/session1/struct.img', '/data/subject1/session2/struct.img' };
  batch.Setup.structurals{2} = { '/data/subject2/session1/struct.img', '/data/subject2/session2/struct.img' };
  ...

those are interpreted to be session-specific (one file per session, for each subject).

Hope this helps
Alfonso


Originally posted by Kaitlin Cassady: