[Simnibs-discuss] extracephalic montage models

Guilherme B Saturnino guilhermebs at drcmr.dk
Mon Feb 10 10:25:40 CET 2020

Dear Fabio,

Thanks for the interest in SimNIBS!

For modelling extracephalic electrodes, we recommend that you 
use/heardreco/ head models 
such as our example dataset Ernie, as those head models include the 
neck. By placing the electrode in the lower part of the neck, you can 
get a good approximation of the should placement.

Best Regards,


On 10/02/2020 08.58, Fabio Masina wrote:
> Dear colleagues,
> I'm interested in the NIBS fields, especially TMS and tDCS, and my
> background is in psychology and cognitive neuroscience. Recently, I've
> carried out a tDCS study comparing the behavioral effect of
> High-Definition tDCS vs. classical tDCS. With the definition of
> "classical" I mean a standard tDCS montage with two electrodes (25 cm2
> each), where the anode was placed on C4 (accordingly to the 10-20
> International System of EEG placement) and the return electrode on the
> left shoulder.
> To this concern, I'd like to model the electrical field of both the
> montages used in my study but I don't know if there is the possibility
> to do this modeling, by using the Simnibs, when the tDCS has an
> extracephalic electrode, as in my case.
> Have you some suggestions?
> Best regards and congratulation on your excellent tool!
> Fabio Masina
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