[Mne_analysis] equivalence of averaged single trial STCs and evoked STCs

[Tal Linzen]

Thanks. So just to make sure I understand what this all means, what is the
recommended nave value for a single trial source solution, assuming we want
to later average the single trial activations and get something similar to
applying the inverse operator to averaged epochs? And what is the
implication of what you're saying for choosing dSPM or MNE in a single
trial analysis?

Thanks,
Tal


On Sat, Mar 15, 2014 at 3:58 PM, Alexandre Gramfort <
alexandre.gramfort at telecom-paristech.fr> wrote:

> > Also, just wanted to quickly add that in my understanding, what dSPM is
> > essentially trying to achieve is the same kind of normalization as would
> > result when you do MNE first and then scale by the baseline..
>
> it's the same objective but it's mathematically different.
>
> one more thing to add is that the nave also plays a role
> in the scaling of the regularization parameter. It scales the noise
> cov used in dSPM but it's not a plain scaling
> of the estimates.
>
> Alex
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