[Mne_analysis] LCMV on raw data

Rameez S rameez500 at gmail.com
Thu May 17 11:39:33 EDT 2018
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Hi,

Anyone can help me to import .avg file from event related potential dataset
?

Thanks



On Thu, May 17, 2018 at 8:20 AM, Karin Westin <karin.westin85 at gmail.com>
wrote:

>         External Email - Use Caution
>
> 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_dipo
>> le_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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