[caret-users] Viewing foci on the surface

Donna Dierker donna.dierker at sbcglobal.net
Sat Nov 24 20:52:18 CST 2012

Hi Heather,

First, thank you for being so patient with me and Erin the other day.  We both felt really badly when we struck out at helping you.

I can't explain why it didn't work.  The foci names and classes were listed, but with Show Foci toggled on, we couldn't see the foci -- even when we turned the drawing mode to Hide Surface, changed the background, tried different colors, etc.  We tried different foci file formats.  Couldn't get the little things to display.

But just now, using your csv file, I successfully displayed them using Caret MacOSX 64-bit, v5.65, 1/27/2012 on my iMac.  I used the Sept 2006 tutorial dataset (RIGHT DEMO spec for right, LEFT STANDARD SCENES for left).

I projected the foci (hemisphere only, no offset), so see if you can view the attached fociproj files.

I don't understand why it didn't work on your Caret version/dataset.


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On Nov 24, 2012, at 2:59 PM, Heather Wilkins wrote:

> Hello Caret experts,
> I am having some trouble viewing added foci on the Caret surfaces. I have been through several of the tutorials, created the appropriate .csv file in excel (attached), and generated a project ID # in the study meta data to link to the foci as was suggested in one of the manuals. These are points in MNI space that I have obtained from conducting a meta analysis in GingerAle, and simply want to view them on the brain with certain probabilistic maps available in Caret to better localize the activations. Has anybody out there had luck using the .csv file? Is there another way to load multiple foci and visualize them? I should also mention that when I open the .csv file in Caret and add it to the spec file, the names of the foci do show up in the foci menu, but not on the brain. (And yes, I have selected the "Show Foci" button, and removed the surface of the brain to see if they were underneath for some reason). I have attached one of the .csv files I am using, and would appreciate any suggestions from folks that use this feature.
> Thank you!
> Heather
> <MetaAnalysis_Foci_FreCR.csv>_______________________________________________
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> caret-users at brainvis.wustl.edu
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