Yes! It's wild! That's sorta what might be happening in the brain. I do brain stimulation experiments where we generate electric fields in the brain by passing

Yes! It's wild! That's sorta what might be happening in the brain. I do brain stimulation experiments where we generate electric fields in the brain by passing currents across the scalp: 0.5 V/m or so (which you get by putting 1-2 mA across the scalp) is enough to do some really wild things to neurons, even in a big primate head. This is cool, and potentially useful for various kinds of rehab/neuroprosthetics/etc. The crazier thing is that the neurons themselves generate much stronger electric fields themselves (~10x stronger, in some parts of the brain). Whether those fields are actively used or merely "tolerated" is hard to say but....woah.