What is this weird thing of hearing other people talk constantly. I never quite did figure that one out.

Especially when sleep deprived after one day or so while lying down there's constant chatter in the voices of people I talked to in the previous days.. It gets really annoying when it also happens during non-sleep related activities.

Any thoughts on this or does anyone know of research done in this area? I know it's a very common feature in humans.

I can only think of Jung's therapy in which he talks to friends inside his head to resolve conflict but this seems different in way because the voices aren't really that responsive (or maybe they are, I dont know). But when ignoring it they just go on and on and on.