# restricting analysis to some of the vertices

**URL:** <https://mne.discourse.group/t/restricting-analysis-to-some-of-the-vertices/1903>\
**Category:** Mailing List Archive (read-only)\
**Tags:** list-archive\
**Created:** [July 25, 2019, 9:06pm UTC](https://mne.discourse.group/t/restricting-analysis-to-some-of-the-vertices/1903 "2019-07-25T21:06:34Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![system](https://global.discourse-cdn.com/free1/uploads/mne/original/1X/85cc6bd2b69cb698a166dc6d880fb550510d0144.jpeg) [@system](https://mne.discourse.group/u/system)\
**Post date:** [July 25, 2019, 9:06pm UTC](https://mne.discourse.group/t/restricting-analysis-to-some-of-the-vertices/1903/1 "2019-07-25T21:06:34Z")

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External Email - Use Caution

Hello MNEers,

I would like to limit statistical analysis to some of the vertices, rather  
than all the vertices in the source space. I have morphed all the  
individual data to the fsaverage source space (4098 vertices per  
hemisphere). I would like to use a big language mask that includes ~20 ROIs  
(based on 'aparc.a2009s'). My plan is to extract time series data for  
vertices within the mask (not averaging across the selected vertices  
together), generate connectivity matrix for the selected vertices, and then  
perform spatio-temporal cluster test. I am now stuck at the step of  
extracting the time series data within the mask. Could you point me to any  
relevant resources?

I did find sth relevant from 2017, but was wondering if there is anything  
with more updated and/or details. Here is the link to the post from 2017:  
[https://mail.nmr.mgh.harvard.edu/pipermail/mne\_analysis/2017-January/003854.html](https://mail.nmr.mgh.harvard.edu/pipermail/mne_analysis/2017-January/003854.html)

Thank you!!  
Best,  
Xiaoping

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**Author:** ![system](https://global.discourse-cdn.com/free1/uploads/mne/original/1X/85cc6bd2b69cb698a166dc6d880fb550510d0144.jpeg) [@system](https://mne.discourse.group/u/system)\
**Post date:** [July 28, 2019, 3:48pm UTC](https://mne.discourse.group/t/restricting-analysis-to-some-of-the-vertices/1903/2 "2019-07-28T15:48:56Z")

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External Email - Use Caution

Hello, I think I figured it out by using the spatial\_exclude option. Please  
ignore my previous email.

Thanks,  
Xiaoping