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-------- Original Message --------
Subject: [caret-users] Brainvoyager
Date: Thu, 21 Oct 2004 14:12:47 -0500
From: Donna Hanlon <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]
CC: John Harwell <[EMAIL PROTECTED]>
Hi Lars,
Hi community,
Caret allows to import a flatmap that was created in Brainvoyager
(.srf). That step works more or less fine (see picture of the right
hemisphere), but has anybody an idea of viewing brodmann areas on this
flatmap, or is it impossible?
I realized I think I can answer this. To view the Brodmann areas on
your subject's flat map, you need to register it to the colin atlas.
Caret provides flat and spherical registration methods (scan Part II of
the tutorial -- possibly using the 4.6 tutorial, since the 5.1 version
probably doesn't cover registration via flat map). We strongly prefer
spherical registration if you have a full hemisphere, and probably the
easiest way to do it is start with the fiducial surface (i.e., the 3d
surface that reflects the gray/white boundary). Then, you can use Caret
to inflate that surface to a sphere; do flatten full hemisphere
(ellipsoid) and morph sphere; and register to colin.
Then, you apply the resulting deformation map in your individual
subject's directory to the paint file in the colin subdirectory, and
you'll get a deformed paint file in your subject's directory.
Clear as mud? ;-)
Donna
