OK, I think I finally understand what you're asking. I haven't studied this area, but it sounds like you want a similar approach to Cognitive Behavioral Therapy, which seeks not to suppress intrusive thoughts/emotions, but rather to disconnect these thoughts/emotions from self-sabotaging responses. The specific response you're interested in is the suppression of of failure to activate speech motor programs. This approach would seem to fall under Stuttering Modification, in that the patient is helped to become aware of what they do when their stuttering, and how they can change those behaviors to reduce its severity. The specific interventions probably depend a lot on the individual, because different stutterers will have to unlearn their own idiosyncratic behaviors that contribute to dysfluency. Also, I don't think we can definitely say that "we PWS may experience being stuck or unable to articulate \[out of control experience\], but this is merely an intrusive thought or feeling." You're talking about 'secondary' symptoms, which I agree stutterers can work on and change. But a lot of researchers/clinicians are convinced that there are also 'core' stuttering symptoms, in which dysfluencies occur due to some (not well-understood) failure of the speech motor system, rather than something under the speaker's conscious control. The secondary symptoms are then responses to the core symptoms. An example of this theory is the section "A Two-Stage Model of Stuttering" from ch6 of [this book](https://libgen.li/ads.php?md5=3D386401AFF7230ABD9A8B2DF0BEA604).