No. For more information see our blog post Genetics of Stuttering.

The two most prominent neurological abnormalities associated with stuttering: Overactive speech motor control, resulting in too much speech muscle movement, such as hard blocks, prolongations, and repetitions. DAF helps stutterers to slow down speech muscle movements. Fluency shaping therapy trains stutterers to speak with relaxed speech muscle movements. Underactive auditory processing, resulting in poor integration [...]