[Mne_analysis] Effect of interpolation of 'grad' channels after SSP

[Alexandre Gramfort]

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hi,

interpolation will be useful for group level sensor space analysis to
make sure all your subjects have the same
sensors available. It would not expect it to help for source space analysis.

what is clear is that you should not compute SSPs on noisy channels.

HTH
Alex

On Wed, Nov 27, 2019 at 1:05 PM Diptyajit Das <bmedasdiptyajit at gmail.com> wrote:
>
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> Hi everyone,
>
> I am applying SSP to the meg data, but there are some 'grad' channels are quite noisy (even after applying interpolation), so normally I exclude them before applying SSP.
>
> My question remains, is it make sense to interpolate the noisy excluded  'grad' channels after SSP has been done without it and do source localization on full set of channels? Does new interpolated channels also contain SSP info like other channels? How does it works in MNE, is there any example  that I can follow?
>
> Regards,
> Dip
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