[Mne_analysis] LCMV on raw data

[Marijn van Vliet]

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        
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> 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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