"Deep" in the mouse is a few millimeters, while deep brain structures in primates are 10-15x deeper. In primates, the fields would be harder to precisely interf

"Deep" in the mouse is a few millimeters, while deep brain structures in primates are 10-15x deeper. In primates, the fields would be harder to precisely interfere because of our thicker skulls and larger, more convoluted brains. The level of c-fos activation in the Cell paper is also a little crazy--it seems way too intense to be correct, especially when compared against direct electrophysiological measurements. It's also not 100% clear that the high frequency fields do nothing--there are some claims that they have DC-like effects due to hysteresis in the neurons' membrane potentials.