I use HDR edit to set the coordinates of the origin to the anterior
commisure on both my anatomic images and epi images. This works fine
since when I examine the header with spm_hread, the correct values are
present in the headers.
However, when I display the images using DISPLAY, the coordinates of the
origin seem to be more or less in the middle of the volume rather than
the values contained in the header. Why is this?
Also, when I specify a model and compute the results, the origin of the
datasets displayed on the glass brains is in the middle of the volume
rather than at the coordinates contained in the headers of the epi
images. Why is this?
Jerry Allison
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