Providing that you have coregistered the structural and functional images together,
then you can apply the spatial normalisation parameters in struc_sn3d.mat to your
functional images (via the <Normalise> button). This will produce spatially
normalised functional images which you can then do the statistical analysis on.
The results of this analysis should then superimpose correctly on the normalised
structural image.
Alternatively, if you are just doing a single subject analysis, then you can do
the stats on the un-normalised functional images, and superimpose them on a
coregistered structural. One thing to note however, is that when you superimpose
results on a structural image, they may not appear in exactly the correct place.
Functional images contain quite a lot of distortion, which the rigid body
transformation estimated by coregistering the images together does not account for.
Best regards,
-John
| I am very sorry but I still do not understand how to handle the normalization
| problem. More precisely:
|
| Let us suppose that struct.img is the structural image of mister X and
| X1(1-45).img are the 45 functional images. By using the normalization option I
| can normalize the structural image to the T1 template thus obtaining nstruct.img
| and the corresponding struc_sn3d.mat file. Now, my problem is that I do not know
| how to proceed if I want to superimpose the activations on the normalized image.
| What I can guess, is that I could normalize the functional images by using the
| .mat file, then perform the statistical analysis on the normalized functional
| images and finally use the render option to superimpose the activations on the
| normalized structural slices.
| However I am not sure at all that this is the correct procedure. I am very sorry
| to trouble you again and I will be very grateful to you if you can help me with
| this problem.
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