Hi Jochen,
Yes -- sometimes the right sign is counter-intuitive.
I'll add the generation of an interaural fiducial to my growing queue of
atlas updates.
Donna
On 06/21/2005 02:25 PM, Jochen Ditterich wrote:
Thanks, Donna. I had to get the signs right, but it seems to be
working now. The correct offsets are 0, +19, and +5.5. I would be
happy to share the files if anybody is interested.
Best,
Jochen.
Donna Hanlon wrote:
Hi Dr. Ditterich,
No, I don't think you're doing anything wrong. I think the problem
is that we need a fiducial coord file that is aligned to the
inter-aural axis, but we only have a AC-origin fiducial coord file.
I'm guessing you're using this archive:
http://sumsdb.wustl.edu:8081/sums/archivelist.do?id=684673
You can try creating one yourself and see if it works. Here are the
origins of the volumes:
Macaque.F99UA1.LR.Brain.AC_origin.04-01-29+orig.HEAD
35.5 54.5 -30
Macaque.F99UA1.LR.Brain.InterAural_origin.04-01-29+orig.HEAD
35.5 35.5 -24.5
Take the difference and use the Surface: Transform menu to translate
the AC-origin fiducial by the difference. Then Save Data File:
Coordinate File and name it differently, to reflect the inter-aural
alignment. It's worth a shot.
Donna
On 06/20/2005 12:49 PM, Jochen Ditterich wrote:
Hi!
I have a question regarding Caret and the monkey atlas. There are 4
different files under "Volume Files - Anatomy". Two of them are
apparently AC aligned, the two others are aligned with respect to
the inter-aural axis. I would like to use the latter ones since this
is the stereotaxic coordinate system we are working with. However,
there seems to be a misalignment between the surface viewer and the
volume viewer whenever I load one of the InterAural_aligned files.
The correspondence seems to be OK whenever I load one of the
AC_aligned files. Am I doing something wrong?
Thanks,
Jochen.
-------------------------
Jochen Ditterich, Ph.D.
Assistant Professor
Center for Neuroscience
University of California
1544 Newton Court
Davis, CA 95616
USA
office: +1 (530) 754-5084
lab: +1 (530) 754-6987
fax: +1 (530) 757-8827
_______________________________________________
caret-users mailing list
caret-users@brainvis.wustl.edu
http://pulvinar.wustl.edu/mailman/listinfo/caret-users
_______________________________________________
caret-users mailing list
caret-users@brainvis.wustl.edu
http://pulvinar.wustl.edu/mailman/listinfo/caret-users
