[FieldTrip] EEG from Source

[Stephen Whitmarsh]

Hi Eric,

It's not sure what your question is, or what you exactly already have and
what you need.

I assume with ESI you mean some kind of EEG source analysis starting from
EEG electrodes. It's unclear why you would want to 'go back' to EEG
electrodes.

Its not clear what kind of source modelling you've done. But if you have an
inverse solution you should be able to multiply (the inverse) with your
results to reconstruct some electrode-level data somehow. But I'm not that
math-savvy to spell it out in any more detail, but anyone who is would need
more details anyway.

Perhaps you are asking about the data structures FieldTrip uses, you can
find them detailed here:
http://www.fieldtriptoolbox.org/faq/how_are_the_various_data_structures_defined/

In any case, I would also take a look at:
http://www.fieldtriptoolbox.org/faq/how_to_ask_good_questions_to_the_community/

Best of luck,
Stephen




On Wed, 7 Aug 2019 at 21:27, Eric F S <eric.robotic at gmail.com> wrote:

> Hello, my name is Eric,
>
> I am working with ESI and I'd like to know how to calculate an EEG
> structure from a Source structure having the leadfield structure.
>
> Already thankful,
> Eric F Schmiele
> _______________________________________________
> fieldtrip mailing list
> https://mailman.science.ru.nl/mailman/listinfo/fieldtrip
> https://doi.org/10.1371/journal.pcbi.1002202
>
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