[Eeglablist] Can Dipfit 3.0 (LORETA) only fit dipoles to selected time points or does it create source space time series?

[Kaelasha Tyler]

Great, thanks Arno.

I will go with the eLoreta across time method that you mentioned, and then
do cross frequency analysis on that data separately.
I have used Fieldtrip before, so this looks to be similar.

The experimental plugin with Stefan Haufe looks good. But I will save that
for another time.

Cheers!

Kaelasha

On Wed, Feb 5, 2020 at 3:36 AM Delorme, Arnaud <adelorme at ucsd.edu> wrote:

> Dear Kaelasha,
>
> > My question is, can Dipfit 3.0 be used to reconstruct EEG time series
> > within the anatomical ROI, or does Dipfit 3.0 only fit dipoles at
> selected
> > timepoints?
>
>
> There is some code on the page you are mentioning that allows to look at
> eLoreta across time in 3-D
>
>
> https://sccn.ucsd.edu/wiki/A08:_DIPFIT#Performing_source_reconstruction_in_a_volume
>
> Also, this can be done using the ERPsource EEGLAB plugin
>
> https://github.com/sccn/erpsource
>
> > I am wanting to look at cross frequency coupling at specific regions of
> > interest within the brain.
> >
> > For this, I thought to reconstruct the EEG time series in the ROIs and
> then
> > do further frequency analysis on that data set, to asses levels of cross
> > frequency coupling in different ROIs across different conditions.
>
> There is also this other experimental plugin on which I worked on with
> Stefan Haufe
>
> https://github.com/arnodelorme/roiconnect
>
> It does not do cross-frequency coupling though - only within frequency
> coupling between brain regions. The code could be modified to do
> cross-frequency though because this plugins does the heavy lifting by
> performing ROI eLoreta.
> For cross-frequency coupling in specific region of the brain, Ramon
> Martinez in our group is currently working on a solution for EEGLAB. There
> might be a solution in Fieldtrip already, I am not sure.
>
> Cheers,
>
> Arno
>
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