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. Author manuscript; available in PMC: 2021 Apr 14.
Published in final edited form as: Annu Int Conf IEEE Eng Med Biol Soc. 2020 Jul 1;2020:3537–3543. doi: 10.1109/EMBC44109.2020.9176249

Figure 3.

Figure 3

Electric field interference and focus capability - (a) The brain is stimulated by two identical low-frequency stimuli, which results in a broad stimulated region. (b) The brain is stimulated by two different high-frequency stimuli (here at frequencies of 10 kHz and 10.04 kHz). It can be seen that the activated area is confined to the interference locus of the two E-fields. (a) and (b) are obtained at the moment when the interference vectors of the two electric fields are at the maximum magnitude. All axes are written in meters.