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I relate to these findings a lot. The point about dopamine levels being high while stuttering so true I feel, because I have noticed I stutter the most when I am super excited about what I am talking. *shrughs* [The new neuroscience of stuttering](https://knowablemagazine.org/article/mind/2020/new-neuroscience-stuttering) > During the 1990s, Maguire and colleagues were among the first to use a certain kind of brain scan, positron emission tomography, on people who stutter. They found [too much dopamine activity](https://journals.lww.com/neuroreport/Abstract/1997/02100/Increased_dopamine_activity_associated_with.37.aspx) in these people’s brains. That extra dopamine seems to stifle the activity of some of the brain regions that Chang and others have linked to stuttering.