I think to a large extent this is because people define "internal monologue" differently, so let me just clarify: a. There is a voice inside your head, and you

I think to a large extent this is because people define "internal monologue" differently, so let me just clarify: a. There is a voice inside your head, and your consciousness is not the one talking: schizophrenia. b. There is a voice inside your head, it's you doing the talking i.e. you're doing everything but moving your lips and producing sound - the words are literally being narrated in your mind: internal monologue. c. No language is being "spoken" inside your head. If you're not talking, you're not forming sentences at all: apparently some people have this experience. My experience is b, but it is possible for me to also think without having to narrate everything (a bit of c). If anyone has a different internal experience, please reply.