[Mne_analysis] Aligning sensor space with MRI

Kadwani, Manorama MKADWANI at mgh.harvard.edu
Thu Oct 14 11:53:23 EDT 2021
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Gotcha, thank you!
From: mne_analysis-bounces at nmr.mgh.harvard.edu <mne_analysis-bounces at nmr.mgh.harvard.edu> on behalf of Eric Larson <larson.eric.d at gmail.com>
Sent: Thursday, October 14, 2021 10:43 AM
To: Discussion and support forum for the users of MNE Software <mne_analysis at nmr.mgh.harvard.edu>
Subject: Re: [Mne_analysis] Aligning sensor space with MRI

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They are projected onto the head surface during forward modeling.


On Thu, Oct 14, 2021 at 10:24 AM Kadwani, Manorama <MKADWANI at mgh.harvard.edu<mailto:MKADWANI at mgh.harvard.edu>> wrote:

I want to understand what happens if the EEG digitized points are not lying exactly on top of the skin/head surface while aligning EEG digitized points with MRI coordinates. I have aligned the fiducial points well, but some electrode points are in and some are out of the head surface.
Are the exact electrode locations used for calculating distance between source and sensor space? Or the electrode locations projected onto the head surface?

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