The signaling disk was the 4-5th interation of a GABA administration protocol. The reason they do that is that those companies selling you Gaba supplements aren't telling you that only 5-10% of what you are taking makes it to your brain. The biosignal processing disk bypasses the blood-brain barrier. Allowing you to actually get a hit of GABA. If you want to learn more about biosignal processing check out this books -> https://www.amazon.com/dp/B008BAOOX0?ref=KC\_GS\_GB\_US