[Simnibs-discuss] simNIBS question

[Guilherme B Saturnino]

Hello,


Thanks a lot for the interest in SimNIBS!

As mentioned in the FAQ, the osculations in TACS do not change the 
electric field spread, but act as a scaling factor as the time and 
spatial component are separable

E(x, t) = E(x)I(t).

If you have many electrodes at different phases, it becomes a little 
more complicated, but it is still a linear superposition (please see 
https://doi.org/10.1016/j.neuroimage.2017.09.024). To calculate it you 
can just use our matlab or python modules to load simulation results 
(mesh_load_gmsh4 in matlab or simnibs.read_msh in python, please see 
https://github.com/simnibs/simnibs/tree/master/simnibs/examples/analysis 
for examples).


We also have a module to optimize electrode locations 
(https://simnibs.github.io/simnibs/build/html/tutorial/optimization.html) 
and a paper about it (https://doi.org/10.1016/j.neuroimage.2019.116183).


Best,

Guilherme



On 25/06/2020 20.17, du t. (td5u19) wrote:
>
> Hello,
>
>    I am a Msc student who is doing my graduate project based on 
> simNIBS. I want to do the TACs simulation to know if machine learning 
> can use to find the right parameters (AC frequency, current, electrode 
> location etc.) to produce interference at target specific brain area. 
>  So is it possible to visualize the effect brought by AC frequency 
> change on simNIBS? Or is there any some code examples for AC 
> simulation that gives a complete process to scale and sum electric 
> fields from different simulations to obtain oscillating AC electric 
> field as you explained in FAQ?
>
>    Any further replay is appreciated, thanks a lot and have a nice day.
>
> Best,
>
> Tianyu Du
>
>
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