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

[Diptyajit Das]

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Thanks!

regards,
Dip

On Wed, Nov 27, 2019 at 3:40 PM Alexandre Gramfort <
alexandre.gramfort at inria.fr> wrote:

>         External Email - Use Caution
>
> 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:
> >
> >         External Email - Use Caution
> >
> > 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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