A disturbance in the normal fluency and time patterning of speech that is inappropriate for the individual's age. This disturbance is characterized by frequent repetitions or prolongations of sounds or syllables. Various other types of speech dysfluencies may also be involved including interjections, broken words, audible or silent blocking, circumlocutions, words produced with an excess of physical tension, and monosyllabic whole word repetitions. Stuttering may occur as a developmental condition in childhood or as an acquired disorder which may be associated with BRAIN INFARCTIONS and other BRAIN DISEASES. (From DSM-IV, 1994)
    

concept

A doctor examines a military recruit suffering from a speech disorder. Wood engraving by F. Pegram, 1916.

A barber in his shop preparing to shave a customer. Coloured etching.

Knotted tongues : stuttering in history and the quest for a cure / Benson Bobrick.

Ueber das Stottern / von J.A. Ssikorski ; ins deutsche übertragen unter der Redaction von V. Hinze.

Stammering, practically considered : with the treatment in detail / by T. Bartlett.

Speakers, singers and stammerers / by Frederick Helmore.

The riddle of stuttering / C.S. Bluemel.

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Stuttering

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Knotted tongues : stuttering in history and the quest for a cure / Benson Bobrick.

Ueber das Stottern / von J.A. Ssikorski ; ins deutsche übertragen unter der Redaction von V. Hinze.

Stammering, practically considered : with the treatment in detail / by T. Bartlett.

Speakers, singers and stammerers / by Frederick Helmore.

The riddle of stuttering / C.S. Bluemel.