[Mne_analysis] Aligning sensor space with MRI

[Eric Larson]

        External Email - Use Caution        

They are projected onto the head surface during forward modeling.

Eric


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

> Hi!
>
> 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?
>
> Thanks,
> Manorama
> _______________________________________________
> Mne_analysis mailing list
> Mne_analysis at nmr.mgh.harvard.edu
> https://secure-web.cisco.com/1aXcbvgNixgqd32YlFORC76K0XJ0W9fIc4V6Ceu2zu3JonXZvAw6IgJRUDkJ-CUJY9tuYiB3uADZYZhE8BTW28N09fGZZ3Haf3JztoN2amwi64WugG80UVhdQsFIlK-8y-x4FO8QfSC5YB0YirWv7K0ZfCkvoiQw9c7lFkJ-yrWHFJW0Q4MKKKkMtvcMrIQRgUjmRZX6YcePkLd3kBKZuzbDztFlJhJsJAabM6cfLNCbe6i3Wu6H2_a-TW7lK0fxyqkRs1k2S30x83nUiahnfhQ/https%3A%2F%2Fmail.nmr.mgh.harvard.edu%2Fmailman%2Flistinfo%2Fmne_analysis
> The information in this e-mail is intended only for the person to whom it
> is addressed. If you believe this e-mail was sent to you in error and the
> e-mail contains patient information, please contact the Mass General
> Brigham Compliance HelpLine at
> http://secure-web.cisco.com/1_HpPJssHX3GEAlqsMy3WUGTeuwCQ2Ct5LFSt4eLf9bYhxOd_VZ2tov5aejRUWml_MK9-fX8mpu0J536RSOiTACwWJAgdXXL6F2JLfhxv4T7_X-DElDVuVFYT5Alnl61ScABEOJbHrME-okR_m6SX5xOjbGq7aoKBpY6L_pxrnG-NBWdDxk30R8nqkhtn4V0WQPOfp4z_s57FZ1b84ch3VWJXx8g8vRk_Q0FoLPgRCbh0q3O1pKHCOxaDRnmLuOUkFpcYUynwoIaUpyX7BbAomA/http%3A%2F%2Fwww.massgeneralbrigham.org%2Fcomplianceline . If the e-mail was sent
> to you in error but does not contain patient information, please contact
> the sender and properly dispose of the e-mail.
> Please note that this e-mail is not secure (encrypted).  If you do not
> wish to continue communication over unencrypted e-mail, please notify the
> sender of this message immediately.  Continuing to send or respond to
> e-mail after receiving this message means you understand and accept this
> risk and wish to continue to communicate over unencrypted e-mail.
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://mail.nmr.mgh.harvard.edu/pipermail/mne_analysis/attachments/20211014/73594cd3/attachment-0001.html