I assume the reason for this is that speech is encoded as an internal meaning and the visible text is also encoded as meaning. When the circuit for the interna

I assume the reason for this is that speech is encoded as an internal meaning and the visible text is also encoded as meaning. When the circuit for the internal meaning fires up then the rest of the circuits are sympathetically fired as well. It also makes me assume that's why PTSD is a thing - some trigger hits the specific circuit that causes the rest of the stress response. With PTSD the process is debilitating, but in the normal course of life the process makes retrieval of information and the expression of appropriate actions easier. Neat. I'm not a scientist and I could be very wrong however.