Theoretically it might be possible. There are some studies on the effects of electric fields onto single neurons. If an external field can influence the firing

Theoretically it might be possible. There are some studies on the effects of electric fields onto single neurons. If an external field can influence the firing of neurons in some way, probably one can train to read these signals. http://journal.frontiersin.org/article/10.3389/fncel.2014.00310/full http://journal.frontiersin.org/article/10.3389/fncel.2014.00... I have no idea on what field intensities are sufficient to influence the neurons.