[Mne_analysis] How to set atlas

[Vivek Sharma]

        External Email - Use Caution        

Hi,
Thanks for the code.
I tried with this method but it reduces the number of vertices to 35, I
want it to be 68 according to Desikan atlas.

On Thu, Jan 17, 2019 at 5:12 PM Diptyajit Das <bmedasdiptyajit at gmail.com>
wrote:

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>
> Hi,
>
> You do cortical parcellation by using some atlas. I think what you meant
> is to restrict the dipoles activity to some particular brain regions. For
> that,  you need to pass the 'label'  during source estimation or you can do
> something like this after the source estimate:
>
> code:
> regexp = 'bankssts'     # name the brain region that you are interested in
> hemi = 'both'  # taking both hemisphere
> label = mne.read_labels_from_annot(subject, hemi=hemi, parc='aparc',
> subjects_dir=subjects_dir, regexp=regexp)[0]    # read the label of the
> particular region based on Desikan atlas (i.e., defined by 'aparc')
> stc = stc.in_label(label)  # restrict the dipoles to that particular label
>
>
> best,
>
> Dip
>
> On Thu, Jan 17, 2019 at 12:05 PM Vivek Sharma <vivek.sharma1510 at gmail.com>
> wrote:
>
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>>
>> Okay.
>> The source estimate file I'm getting consists of 8175 vertices
>> (SourceEstimate  |  8175 vertices) , I wanted to reduce the number of
>> vertices to the ROIs, in my case I wanted to use Desikan atlas.
>> How can I reduce the number of vertices, specific to certain atlases?
>>
>> On Thu, Jan 17, 2019 at 2:10 PM Alexandre Gramfort <
>> alexandre.gramfort at inria.fr> wrote:
>>
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>>>
>>> make_watershed_bem uses an atlas to get a good skull segmentation
>>>
>>> it's not an atlas of the cortical surface as you suggest
>>>
>>> HTH
>>> A
>>>
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>>
>>
>> --
>> Vivek Sharma
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-- 
Vivek Sharma
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