So to be just totally clear: what I actually want is this: If you look at the figures I attached you'll see two main components: the gm and wm, characterised by signal intensity. We can use that to make a line at the wm/gm and another at pial and we obtain two surfaces enclosing the gm.
But in my figures, in this animal, note that there is a both a clear boundary and clear intensity change within the white matter. Just like wm/gm. So I want to make a surface that treats this inner boundary as if it were a gm/wm boundary. In order to characterise the properties of wm in those regions. Thinking about it, the best move may be to cut out the gm, and treat the outer shell as if it's gm. Freesurfer might then compute what I want . That's better than linear contraction. But harder. Yet More staring at 3 million voxels...but that's ok. Unless there's a surfeit trick/hack or something....surfeit made a marmoset mid thickness that was plausible. That's impressive. With freesurfer I have to make a fake volume by hand. Marmosets are the only primate that is germ line transgenic. So you can make a colony of marmosets with parkinsonism in principle. It has a small brain so you can scan at high res. It is small and easy to house compared to rhesus. It has twins twice a year. It's adult in 2 years. It's the model animal of the future...ask the folks in Japan :). Thanks Colin. On Monday, 27 August 2012, wrote: > Send caret-users mailing list submissions to > [email protected] <javascript:;> > > To subscribe or unsubscribe via the World Wide Web, visit > http://brainvis.wustl.edu/mailman/listinfo/caret-users > or, via email, send a message with subject or body 'help' to > [email protected] <javascript:;> > > You can reach the person managing the list at > [email protected] <javascript:;> > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of caret-users digest..." >
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