Hi Dr. Ramon,
First, I should mention that we soon plan to release a new version of
Caret that not only revises the entire mapping interface, but also adds
support for the PALS_B12 (population-average landmark and surface based,
Buckner 12 individuals) atlas. The software and data are ready, but
David is sorting out some scientific issues.
Meanwhile, I think the easiest way to map group data to the atlas is for
you to use the map_fmri_to_surface program. It might be available as an
option on your Caret Attributes: Metric menu. But for some Linux
platforms, the mapper hangs when it is launched this way. You can
launch the mapper by entering map_fmri_to_surface at the command line,
and it shouldn't hang.
Then, the steps outlined in the Caret4.6 User's Guide and Tutorial Part
I
(http://brainmap.wustl.edu/caret/pdf/CARET_UsersGuide.03-06.Part-I.pdf),
page 36, should guide you through the process. Note that there are two
SPM volume types from which you can choose: SPM99, SPM2 in LPI
orientation or SPM2 in RPI orientation. If your SPM2-normalized output
is in radiological convention (i.e., analyze.flip=1 in spm_defaults.m),
then choose SPM2 in RPI orientation; otherwise, choose SPM99 or SPM2 in
LPI orientation. See http://brainmap.wustl.edu/help/mapper.html#spm for
other SPM mapping details.
We will announce the release of the new Caret version on caret-announce,
once David has sorted out the remaining issues.
Donna
On 11/18/2004 07:13 AM, Meike Ramon wrote:
Hello Caret users,
I am a complete novice with caret and would be more than greatful if anybody
could reply to my request.
I am trying to map functional SPM2 data from a group study to a structural
atlas. I have tried via attributes:metric:map functional volume to metric
and somehow I obviously have managed to import some data (hopefully
correctly) - but when trying to repeat the process I failed. This was
probably due to the fact that I'm not quite sure which individual steps
exactly I must take and the necessary order.
Thanks in advance for any information,
Meike Ramon
