title: MNE volume source estimation with template MRI
body: <p>I want to do volume source estimation with template MRI provided by <a href="https://mne.tools/stable/index.html" rel="nofollow noreferrer"><code>MNE</code></a> library. All I have is EEG data which is sampled with <code>standard_1020</code> montage.</p>
  
  <p>I successfully plotted source estimation with template MRI by referencing these documents:</p>
  
  <ul>
  <li><a href="https://mne.tools/stable/auto_tutorials/source-modeling/plot_eeg_no_mri.html" rel="nofollow noreferrer">EEG forward operator with a template MRI</a></li>
  <li><a href="https://mne.tools/stable/auto_tutorials/source-modeling/plot_mne_dspm_source_localization.html" rel="nofollow noreferrer">Source localization with MNE/dSPM/sLORETA/eLORETA</a></li>
  </ul>
  
  <p>However, the figure like this is not what I want:
  <a href="https://i.stack.imgur.com/0uGL1.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/0uGL1.png" alt="enter image description here"></a></p>
  
  <p>I want a figure like this:
  <a href="https://i.stack.imgur.com/mXupv.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/mXupv.png" alt="enter image description here"></a></p>
  
  <p>I checked these documents to get solutions by tweaking solutions from <a href="https://mne.tools/stable/auto_tutorials/source-modeling/plot_eeg_no_mri.html" rel="nofollow noreferrer">EEG forward operator with a template MRI</a> but, found out that I first have to get <code>volume source estimate</code>, not <code>source estimate</code>.</p>
  
  <p>I also checked the <a href="https://mne.tools/stable/overview/cookbook.html" rel="nofollow noreferrer">The typical M/EEG workflow</a> and got the general idea of workflow.</p>
  
  <p>I guess if I cannot utilize template MRI, I think I can use a sample dataset from <code>MNE</code>, but I have no idea where to start. I read and read the documents, but couldn't find hints.</p>
  
  <p>Here are the documents I found out related to my problem so far:</p>
  
  <h3>MNE documents which cover volume source estimation</h3>
  
  <p><strong>Example gallery</strong></p>
  
  <ul>
  <li><a href="https://mne.tools/stable/auto_examples/connectivity/plot_mne_inverse_envelope_correlation_volume.html" rel="nofollow noreferrer">Compute envelope correlations in volume source space</a></li>
  <li><a href="https://mne.tools/stable/auto_examples/inverse/plot_compute_mne_inverse_volume.html" rel="nofollow noreferrer">Compute MNE-dSPM inverse solution on evoked data in volume source space</a></li>
  <li><a href="https://mne.tools/stable/auto_examples/inverse/plot_lcmv_beamformer_volume.html" rel="nofollow noreferrer">Compute LCMV inverse solution in volume source space</a></li>
  <li><a href="https://mne.tools/stable/auto_examples/inverse/plot_morph_volume_stc.html" rel="nofollow noreferrer">Morph volumetric source estimate</a></li>
  </ul>
  
  <p><strong>Tutorials</strong></p>
  
  <ul>
  <li><a href="https://mne.tools/stable/auto_tutorials/source-modeling/plot_dipole_fit.html" rel="nofollow noreferrer">Source localization with equivalent current dipole (ECD) fit</a></li>
  </ul>