This study showed that the participants had an objective statistically significant decrease in the frequency of stuttering with MPH, and this was not the case with placebo. This was also the case for a reduction in stutter moments when reading out loud and speaking spontaneously. However, this result was not subjectively perceived by the participants.

This case study of acquired stuttering confirms the reality of acquired or neurogenic stuttering. It further shows that the syndrome can exist in its own right. It is not simply a secondary psychological consequence of brain damage but a direct result of the cerebral lesion.

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