[FieldTrip] volume conduction model

Julian Keil julian.keil at gmail.com
Tue Mar 1 17:06:25 CET 2016

Dear Vasan,

the choice of your volume conduction model depends on the data you want to
analyze. Do you use MEG or EEG?
If you state, a large number of grid points are empty, do you refer to the
"inside" grid points, i.e. the elements of your grid falling into the the
brain volume, or do you refer to all grid points? If the latter is the
case, that is the correct behavior, as grid points outside your brain
volume should not contain data.

Hope this helps,


On Tue, Mar 1, 2016 at 3:52 PM, Sreenivasan R. Nadar, Ph.D. <
sreenivasan.r.nadar at gmail.com> wrote:

> Fieldtripers,
> What is the best volume conduction model that compute all  sources (entire
> grid) that are within the brain volume? I am doing resting state analysis
> and wish to extract source time series for all the grids within the brain
> volume. I am using singleshell volume conduction model and lcmv and eloreta
> source models. Unfortunately, for large number of grids  i.e,  the
> source.avg.filter are empty. Please let me know if there are ways to deal
> with this problem.
> Thank you in advance.
> -Vasan
> _______________________________________________
> fieldtrip mailing list
> fieldtrip at donders.ru.nl
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