I agree with everytthing you said! >*"So we are on a constant quest of regulating our own emotional state to support the other people emotion. That is the main code that is embodied on our brain. That is the way we related to other people."* So if this is true. (which I think it is) Then the next question we should ask is: Why do we need to "overregulate" the emotional state to fine-tune speech execution? Regulating the emotional state in response to fear of social rejection or external validation is something that we are born with.. that is, an unconditioned stimulus. On the other hand though.. The need to overregulate is a value judgement, something "learned"/ conditioned. Let's say that stutterers completely let go of all the value judgement when they hit rock bottom, and basically don't care anymore about how fluently they speak or how others perceive our speech performance etc etc etc. Then we may still stutter but it's not a big problem anymore, and this could lead to adequately fine-tuning our speech execution I believe.