The Influence of the Onset of Phonation on the Frequency of Stuttering To test the hypothesis that the frequency with which vocalization must be initiated in a given speech segment and the frequency of attendant disfluency are positively related, two passages were constructed. One passage was composed entirely of voiced speech sounds (all-voiced passage). The other contained both voiceless and voiced sounds ... Research Article
Research Article  |   September 01, 1971
The Influence of the Onset of Phonation on the Frequency of Stuttering
 
Author Affiliations & Notes
  • Martin R. Adams
    Kent State University, Kent, Ohio
  • Ronald Reis
    Kent State University, Kent, Ohio
Article Information
Research Articles
Research Article   |   September 01, 1971
The Influence of the Onset of Phonation on the Frequency of Stuttering
Journal of Speech, Language, and Hearing Research, September 1971, Vol. 14, 639-644. doi:10.1044/jshr.1403.639
History: Received December 21, 1970
 
Journal of Speech, Language, and Hearing Research, September 1971, Vol. 14, 639-644. doi:10.1044/jshr.1403.639
History: Received December 21, 1970

To test the hypothesis that the frequency with which vocalization must be initiated in a given speech segment and the frequency of attendant disfluency are positively related, two passages were constructed. One passage was composed entirely of voiced speech sounds (all-voiced passage). The other contained both voiceless and voiced sounds (combined passage). Thus, in reading the later material, subjects had to effect more “off-on” phonatory adjustments than in the all-voiced selection. Aside from this difference, the passages were closely matched along several other linguistic and phonetic parameters. Fourteen stutterers performed five massed oral readings of each passage. Statistical analyses all showed that there was significantly less stuttering and more rapid adaptation associated with the all-voiced material.

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