[Eeglablist] Missed channels in MNI file

[Clement Lee]

Hi Inna,

It looks like O9 and O10 are part of the 'Extended' system but the MNI
template uses the 'Standard' labels.
By comparing template layouts it looks like O9 == I1 & O10 == I2.

https://urldefense.proofpoint.com/v2/url?u=https-3A__ars.els-2Dcdn.com_content_image_1-2Ds2.0-2DS1053811913007805-2Dgr9.jpg&d=DwIFaQ&c=-35OiAkTchMrZOngvJPOeA&r=kB5f6DjXkuOQpM1bq5OFA9kKiQyNm1p6x6e36h3EglE&m=7prXtpnxk0SulDzgp27DuCPzA6dmHXG7zsiH2SBG2To&s=BA5zFJh_E1hHRR0nWIlNukD6cSnz0EkRwj-Ec1LefAM&e= 
https://urldefense.proofpoint.com/v2/url?u=http-3A__old.fieldtriptoolbox.org_-5Fmedia_template_easycapm1.png&d=DwIFaQ&c=-35OiAkTchMrZOngvJPOeA&r=kB5f6DjXkuOQpM1bq5OFA9kKiQyNm1p6x6e36h3EglE&m=7prXtpnxk0SulDzgp27DuCPzA6dmHXG7zsiH2SBG2To&s=p4Pgytje3op4gvTSSZTdf4kSn6tWDvjzC_i2kKpHO1U&e= 

I would relabel the channels and use the MNI template.

Best,
Clement Lee
Applications Programmer
Swartz Center for Computational Neuroscience
Institute for Neural Computation, UC San Diego
858-822-7535


On Fri, Aug 13, 2021 at 8:01 AM Inna Forsiuk via eeglablist <
eeglablist at sccn.ucsd.edu> wrote:

> Good morning,
>
> To plot the channel locations with eeglab I was using MNI coordinate file.
> However by using it for my eeg file which contains 128 channels, 2 channels
> were missed: O9 and O10.
> When I am using BESA file – coordinates for all channels can be loaded.
> Could you please explain to me, why with MNI two channels are missed? And
> if MNI file is better as BESA file for further processing?
>
> Thank you in advance
> Inna Forsiuk
>
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