[Mne_analysis] LCMV on raw data

[Karin Westin]

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Ok thank you. If one wanted to retrieve data from only one source (an
epileptic source) how should you do? That is not  only for epochs, but for
continuous data?

Karin

2018-05-15 18:30 GMT+02:00 Marijn van Vliet <w.m.vanvliet at gmail.com>:

> Hi Karin,
>
> pick_ori=‘max_power’ does not find the source point with maximum power,
> but for each source point, the *orientation* of maximum power. See this
> tutorial for more information about what I mean with the “orientation” of a
> source:
>
> https://www.martinos.org/mne/stable/auto_tutorials/plot_
> dipole_orientations.html
>
> The LCMV beamformer, applied to continuous data, will for each time point
> create a full source estimate for all source points along the cortex. So
> yes, you’ll be able to see the location of maximum power “move” along the
> cortex.
>
> Hope that helps!
>
> Marijn.
>
> > On 15 May 2018, at 14:54, Karin Westin <karin.westin85 at gmail.com> wrote:
> >
> >         External Email - Use Caution
> >
> >
> > Hi!
> >
> > I hope my question is understandable...
> >
> > If one applies lcmv beamformer on raw data continous data (50 minutes of
> registration) and chooses pick_ori='max_power', will the output be a
> spatial filter of the maximum power source at each time point? That is,
> will the spatial filter "move" across the cortex if the cortical source of
> maximal power changes?
> >
> > Karin
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