[FieldTrip] DICS: ft_sourceanalysis - why headmodel is necessary? Leadfield is not sufficient?
Schoffelen, J.M. (Jan Mathijs)
jan.schoffelen at donders.ru.nl
Fri Dec 9 15:05:07 CET 2016
You’re absolutely right. In theory the headmodel shouldn’t be required if you already provide the forward model. Yet, it’s a rather annoying feature of the code that it is still required for the code to run through. This is the consequence of a ‘once-upon-a-time’, where the forward model computation was done within ft_sourceanalysis. We have never managed to clean this up completely.
If you have a clean suggestion of how to clear this, please feel free to make a suggestion through github.
Donders Centre for Cognitive Neuroimaging, Nijmegen, The Netherlands
On 09 Dec 2016, at 14:24, Michał Komorowski <michak at is.umk.pl<mailto:michak at is.umk.pl>> wrote:
I am using ft_sourceanalysis to analize EEG signal using DICS method (https://www.ncbi.nlm.nih.gov/pubmed/11209067).
I wonder why headmodel is needed to be passed to cfg to ft_sourceanalysis even though the correct leadfield is provided? In the equations for DICS there is only a leadfield needed, not a headmodel.
fieldtrip mailing list
fieldtrip at donders.ru.nl<mailto:fieldtrip at donders.ru.nl>
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the fieldtrip