[Mne_analysis] DICS with external channel

[Alexandre Gramfort]

hi,

you may want to give a try to :

https://martinos.org/mne/stable/auto_examples/decoding/plot_decoding_spoc_CMC.html

then I would source localize with a dipole fit the pattern of the decoder.

Alex




On Fri, Apr 13, 2018 at 6:10 PM, Mikkel Vinding <mikkel.vinding at ki.se> wrote:
> Hello
>
>
>
> Do anybody out there have experience with using the DICS beamformer in MNE
> to find sources coherent with an external signals? E.g. using EMG to finding
> cortico-muscular coherence as done in the original DICS paper by Gross et
> al. 2001.
>
>
>
> So far it seems that the DICS beamformer in MNE only take the cross-spectra
> from MEG sensors, but not able to specify CSD with a non-MEG channel. It
> seems that in order to calculate the CSD between MEG sensors and external
> reference I first have to label the external channels as an MEG channel, as
> mne-time_frequency.csd/csd_epochs will only calculate the CSD matrix between
> MEG channels. This does however not solve my next problem: that I only need
> the external reference-MEG CSD for the source localization. Anybody who have
> a workaround or solution?
>
>
>
> Best regards
>
> Mikkel
>
>
>
> Mikkel C. Vinding | Ph.D. | Post doc
> NatMEG - The National Research Facility for Magnetoencephalography
> Department of Clinical Neuroscience | Karolinska Institutet
> 171 77 Stockholm | Nobels väg 9, office D313
> Phone: +46 8 524 833 33
> Email: mikkel.vinding at ki.se | ki.se
> ______________________________________
> Karolinska Institutet – a medical university
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>
>
>
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