Anyone heard of Collin from MAKE? He has a video entitled Brainwave Beats on Youtube. I'm pretty sure he used a device called an EEG to create music. How does an EEG (or a plain electrode for that matter) extract signals from the brain? Information within the brain is sent via electric impulses (like current). I assume these impulses send out EM waves, and it's these that the electrodes respond to? If every word in our vocabulary has a specific impulse (& therefore a mirrored wave), then what's stopping us from sending these signals through something like a microcontroller (arduino?) and spitting out our minds? Just tossing around project ideas for my arduino. Open to suggestions.