> Luis,
>
> Glad that helped. This is now outside the scope of the bioimagesuite
> forum. I'm afraid I am rusty with SPM, although I will probably have to
> pick it up again within a few weeks. (Obviously rusty: in retrospect I
> believe the origin is supposed to be set at the anterior not posterior
> commissure). If you go to American Epilepsy Society meeting in Houston, I
> could meet you and see if I can help.
>
> Without more detail, here is a guess about what you can do. Open the MNI
> template in SPM in the Display module. There you can see where the
> coordinates for the origin of the built in reference MNI T1 are. Copy them
> down. If all of your images are correctly coregistered to the same
> reference, then you can use the same Display module to set the origin for
> them there. Just type in the coordinates and set it. I think you have to
> save it after. There are guides for SPM available that can help.
>
> Good luck.