[Mne_analysis] source space vertices locations

[Keith Doelling]

Thanks for bearing with me.

Based on shape, It seems as though they are in either the 'nn' or 'rr' keys
of the source space dict. Maybe this is obvious, but what is the difference
between these?

After that I can use vertno to select the correct vertices?

Keith

----------------------------------
Keith Doelling
Dept of Psychology
Center for Neural Science
NYU

science.keithdoelling.com

On Tue, Mar 29, 2016 at 9:17 AM, dgw <dgwakeman at gmail.com> wrote:

> Hi Keith,
>
> The xyz coordinate for each vertex is in the source space. you can
> just calculate anterior vs. posterior using the locations there.
>
> hth
> d
>
> On Tue, Mar 29, 2016 at 9:13 AM, Keith Doelling <kd889 at nyu.edu> wrote:
> >
> > I have been working off of that example that you linked in. The
> > mne.stc_to_label is very useful and gets me part of the way there but I
> > still can't say which is anterior and which is posterior until I plot
> them.
> > Which is fine with two labels but could get complicated with more (or to
> > iterate across many subjects). If I can avoid the manual option, that'd
> be
> > great.
> >
> > Really all I'm looking for is access to the spatial location of each
> vertex
> > in some kind of xyz coordinate space. With that, the rest is, as you
> > mentioned, a bit of simple self-written code but I haven't been able to
> find
> > any documentation on how the vertices are sorted or structured.
> >
> > Thanks!
> >
> > Keith
> >
> > ----------------------------------
> > Keith Doelling
> > Dept of Psychology
> > Center for Neural Science
> > NYU
> >
> > science.keithdoelling.com
> >
> > On Tue, Mar 29, 2016 at 8:20 AM, dgw <dgwakeman at gmail.com> wrote:
> >>
> >> You can do this in mne_analyze by simply drawing around the ROI, and
> >> selecting (the procedure is described in the manual). You can also do
> >> this programmatically in the mne-python code (this is a good starting
> >> point:
> >>
> http://martinos.org/mne/stable/auto_examples/inverse/plot_label_from_stc.html?highlight=label
> >> ). or with a simple bit of self-written matlab/python code depending
> >> on your needs.
> >>
> >> hth
> >> d
> >>
> >> On Tue, Mar 29, 2016 at 7:59 AM, Keith Doelling <kd889 at nyu.edu> wrote:
> >> > Hi all,
> >> >
> >> > I'm curious about how to select vertices based on their overall
> >> > location.
> >> > For example, say I have found two peaks in my source estimates. I want
> >> > to
> >> > build two functional labels for each. One blob is in the anterior half
> >> > and
> >> > the other is in the posterior half of the left hemisphere. Are the
> >> > vertices
> >> > organized in such away that I can select each blob on the basis of its
> >> > overall location in the brain?
> >> >
> >> > Thanks in advance!
> >> > ----------------------------------
> >> > Keith Doelling
> >> > Dept of Psychology
> >> > Center for Neural Science
> >> > NYU
> >> >
> >> > science.keithdoelling.com
> >> >
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