 |
 |
Hi Johan > Dear SPM mailbase, > We would like help in finding the proper description of the space in > which coordinates are > reported when the normalization procedure is based on the EPI template in > spm2. > > Suggestions: > "The x, y, z coordinates refer to the Talairach space > as implemented by the MNI brain template"? > (However, as the EPI template does not exactly match > the MNI brain template this description in not entirely > correct) > > "The x, y, z coordinates refer to an approximate > Talairach space"? > (This lacks precision, at least in the mind of one reviewer) If I remember well Jesper Andersson posted some stuff about that few weeks ago. My humble opinion is that normalization is anyway not perfect so the term "approximate" is always true.. anyway I now personnaly refer to the template used only: e.g. data were normalized onto the EPI template as implemented in SPM2 (or SPM5). Then if I report coordinates in Talairach space, I specify how I got these coordinates (e.g. MNI2TAL M. Brett's algo). This way if the reader wants more info about the template he/she can have a look at the template in SPM (everything is commented) and I don't need to explain the approximations from MNI to Talairach and so one. Not sure it really help.. :-)) Best Cyril ------------------------------------------------- This mail sent through IMP: http://horde.org/imp/