I am a speech pathologist and a lifelong stutterer. I spent many years researching how the brain learns. I discovered that my brain is wired differently than a fluent brain. I found that I did not have voluntary control over my vocal cords. When I spoke my vocal cords would close which I found was the root cause of my stuttering. I found a book by William Parry that talked about the Valsalva response as it relates to stuttering. This gave me the information I needed to begin my pathway to fluency. After much effort and practice I became stutter free. I was thrilled not to have to stutter anymore. I have never had a relapse. I wish you all the best in your own journey to fluent speech.