> Related to this issue, we have a subject who moved between the anatomical
> images and the first and second fMRI runs. When we reorient, realign, and
> normalize EPI images to the T1-anatomical images, the result is obviously
> wrong, and we get a shifted map of activation, where areas are not
> correctly located. We have tried to solve this problem by reorienting,
> realigning, and just normalizing EPI images to themselves. However, we seem
> to get a rather similar, unsatisfactory result. Is there any better way to
> deal with this?
The coregister button can be used to register images of different modalities.
Realign the fMRI data as usual, and coregister the anatomical image to match
them. The results probably won't be perfect because of the inherant distortion
in the fMRI data (coregistration uses only a rigid-body model).
Best regards,
-John
--
Dr John Ashburner.
Functional Imaging Lab., 12 Queen Square, London WC1N 3BG, UK.
tel: +44 (0)20 78337491 or +44 (0)20 78373611 x4381
fax: +44 (0)20 78131420 http://www.fil.ion.ucl.ac.uk/~john
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