Temporal interference stimulation (TIS) is a novel, non-invasive deep brain stimulation (DBS) methodology thatutilizes multiple external electric fields with amplitude modulation (AM) to stimulate deep brain regions without affectingthe superficial cortical areas. However, the clinical application of TIS is inhibited by its unproved response of the brain to the modulated stimulation. In this study, we investigated the instantaneous brain response to TIS using fMRI technique in rodents. The results demonstrated the compatibility of TIS with fMRI, as well as the feasibility of stimulating subcortical encephalic regions non-invasively and focally.
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