[FieldTrip] original standard 10-20 channel Positions

[sima azizi]

Dear all,

The labels of the EEG data set that I am working with is different from the
labels in the "standard_1020.elec" template. (both the labels and
the number of channels and electrodes)
Does anybody know how should I specify the EEG positions to solve the
forward problem?

Data were acquired with the sampling frequency of 250 Hz using the standard
1020 EEG montage with 19 EEG channels: Fp1, Fp2, F7, F3, Fz, F4, F8, T3,
C3, Cz, C4, T4, T5,
P3, Pz, P4, T6, O1, O2. The reference electrode was placed at FCz.

I appreciate any help in this regard.
Best regards,
Sima.

On Wed, Feb 26, 2020 at 6:36 PM sima azizi <azizi.sima.67 at gmail.com> wrote:

> Dear Fieldtrip members,
>
> I am a PhD candidate at MST in Electrical engineering.I have recently been
> using fieldtrip to do the source reconstruction.
>
> The EEG data set that I am working with, is recorded using the original
> standard 10-20  montage with 19 channels. In terms of finding the channel
> positions for the forward problem, I use the template "standard_1020.elec"
> which has the 97 channels.
>
> I know my question is trivial, but instead of extended version of standard
> 10-20 montage, I need original one which has the 19 channels. Is there a
> template for the original one or do I need to remove the extra channels? If
> I need to remove the channels, how should I do that?
>
>
> Best regards,
> Sima.
>
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