[Mne_analysis] MNE and SSP

[Daniel G. Wakeman]

Eleizer,

The SSP vectors which are automatically provided are actually  
contained at your site. The machine you use puts them in each file.  
For further details ask at your site. MNE simply reads these from the  
fif data. I will leave the second question for other people, but  
generally, if you are creating your own, you should have a good  
reason to (i.e. noise which is specific to your study not just your  
site).

Dan
On 4 May 2009, at 17:10, Eliezer Kanal wrote:

> Hello folks -
>
> This has come up a number of times in our lab. How does MNE  
> construct the SSP vectors which it seems to automatically provide  
> when raw data is loaded? On a similar note, if I have access to  
> empty room data, is it preferable to use that instead of the ones  
> MNE makes, or are the MNE ones better for some reason? Thanks -
>
> Sincerely,
> Eliezer Kanal
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