Alex, Stephanie, et al.,
1) Stephanie's RGB suggestion provides one excellent option for you
to check out.
2) Another set of options is to use the Surface: ROI window, which
allows you flexibility in selecting various regions using data in a
metric column. Then use the Surface ROI: Operate on Selected Nodes
menu to draw borders around the ROI or to assign the ROI to an
existing or new paint column.
3) If you'd like to have side-by-side viewing of different metric
columns in different windows (which is quite handy for a lot of
purposes), then do the following:
i) Make multiple copies of the coord file for the surface
configuration you want to view (e.g., save the very inflated coord
file with 'copy2' and 'copy3' inserted into the file name.
ii) view a separate copy of the desired configuration in each Caret
window.
iii) In the Page Selection: Metric Selection window, use the Surface
Coloration Applies To: pulldown menu to assign a different metric
column to each coord file. Up to 10 different columns can then be
viewed concurrently in this way, and similar options are available
for surface-shape and paint files/columns.
You can use the node ID option to highlight locations of interest
that show up in all windows.
4) If you use any of these approaches and get displays that you find
useful and want to return to in the future, don't forget to generate
a 'scene' and save the scene file. This can save huge amounts of
time in later stages of analysis and in preparing and revising figures.
5) Finally, regarding documentation, there are a number of Caret-
related resources that provide help with questions like this. Within
Caret, the Menu: Help offers quick access to (i) 'Caret Help', which
has extensive documentation and tutorials; (ii) Caret Tips; and
(iii) Search Caret Website, which provides a google-like search of
online Caret resources.
If there are additional suggestions for analysis capabilities needed
or improvements to the search and tutorial capabilities, let us know.
David
On Oct 21, 2007, at 12:28 AM, Stephane Jacobs wrote:
Hi Alex,
I've only work a little with Caret myself, so there might be a
better way... Anyway, you can convert metrics files to an RGB paint
file, using up to 3 contrasts of your metrics at a time. Just go in
Attributes/Metrics/Convert a Metrics file to RGB paint, or
something like that. Then you select each contrast you want to
display as red, blue and/or green, and the overlap will
automatically be coded depending on the primitive colors of the 2
(or 3) contrasts overlapping.
Hope this helps,
Stephane
--
Stephane Jacobs
Human Neuroimaging and Transcranial Stimulation Lab
36 Straub Hall, 1227 University of Oregon
Eugene, OR 97403 - USA
Email: [EMAIL PROTECTED]
Tel: (1) 541-346-4184
On Sun, 21 Oct 2007 10:56:08 +1000 (EST), Alexander Fornito
<[EMAIL PROTECTED]> wrote:
Hi all,
Is there anyway to view more than one functional map (i.e., stat
image) on
the PALS atlas simultaneously?
I have mapped the results of a series of contrasts onto the atlas
and now
have a .metric file with each contrast as a different column.
However, I
only seem to be able to view one contrast at a time.
I can't seem to find any documentation on this.
Ultimately, I would like to overlay two maps simultaneously (each
coloured
using a different palette).
Also, if it is possible to view >1 map at the same time, is there
some
option to colour areas of overlap between the maps differently?
Thanks for your help,
Alex
Alex Fornito
JN Peters Research Fellow
Melbourne Neuropsychiatry Centre
National Neuroscience Facility
The University of Melbourne
Levels 2 & 3, 161 Barry St
Carlton South 3053 Vic Australia
Ph: +61 3 8344 1861
Fax: +61 3 9348 0469
Email: [EMAIL PROTECTED]
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