[Mne_analysis] ICA mne python - combining mags and grads

[Alexandre Gramfort]

hi Ana,

yes we combine grads and mags but we put them on the same scale
by whitening before feeding them to the ICA function. So AFAIK this
works quite well.

HTH
Alex

On Thu, Jan 19, 2017 at 1:28 PM, A. Klimovich-Smith <ak798 at cam.ac.uk> wrote:
> Hello everyone,
>
> I have an ICA-related question for the mne-python community. This time
> more theoretically oriented.
>
> All examples and tutorials on the mne python pages for ICA artefact
> rejection procedures combine both magnetometers and gradiometers
> together when performing ICA and finding artefact components. What would
> be an argument for combining all sensors like this as opposed to doing
> ICA on grads and mags separately (which seems to be a recommended way in
> other packages)? Is this simply for saving computational time?
>
> Thanks for your advice!
>
> Ana
>
> _______________________________________________
> Mne_analysis mailing list
> Mne_analysis at nmr.mgh.harvard.edu
> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/mne_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 Partners Compliance HelpLine at
> http://www.partners.org/complianceline . 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.
>