Acoustic analysis of young stutterers' fluency: Preliminary observations

Zebrowski, Patricia M.; Conture, Edward G.; Cudahy, Edward A.

doi:10.1016/0094-730x(85)90009-9

Cited by 67 publications

(30 citation statements)

References 22 publications

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“…The results of Healey's [1981] study and the work of Zebrowski et al [1985] are not consistent with those of Starkweather and Myers [1979], who found transition differ ences throughout the entire utterance. How ever, all these studies agree in that stutterers' and nonstutterers' steady-state portions were similar -a finding in disagreement with the results of Zimmermann [1980], Prosek and Runyan [ 1982] spectrographically measured the durations of stressed vowels extracted from short segments of con nected speech.…”

Section: Introductioncontrasting

confidence: 54%

“…Stutterers were significantly slower only in completing the transition from frication onset to peak amplitude during the Is/ pho neme; all other measures were not signifi cant. Zebrowski et al [1985] analyzed transi tion rates and durations, along with dura tions of stop gap, frication, aspiration and voice onsets in 1 1 incipient stutterers. No significant differences were found between the child stutterers and matched nonstutter ers for any of the temporal measures.…”

Section: Introductionmentioning

confidence: 99%

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Durational Characteristics of the Fluent Speech of Stutterers and Nonstutterers

Pindzola

1987

Folia Phoniatr Logop

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Section: Introductioncontrasting

confidence: 54%

Section: Introductionmentioning

confidence: 99%

Durational Characteristics of the Fluent Speech of Stutterers and Nonstutterers

Pindzola

1987

Folia Phoniatr Logop

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“…The results that relate to other acoustic measures, such as voice on set time (VOT), vowel duration, voice initiation (VIT), and voice termina tion time (VTT), are also inconclusive. Though Adams (1987), for exam ple, observed that stuttering children have longer segment durations and slower voice onset times than nonstuttering youngsters do, other research ers have not found a significant difference in VOT and segment durations (Zebrowski, Conture, and Cudahy, 1985). Similarly, while some research ers have reported significant between-group differences in the VIT and VOT of stuttering and nonstuttering children (Cross and Luper, 1979, 1983), others have not (Murphy and Baumgartner, 1981;Winkler and Ramig, 1986).…”

Section: Introductionmentioning

confidence: 91%

Speech-motor and linguistic skills of young stutterers prior to onset

Kloth

Janssen

Kraaimaat

et al. 1995

Journal of Fluency Disorders

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Theorists have increasingly suggested that both speech-motor and linguistic factors are involved in the etiology of stuttering. This contention has been supported by findings that tend to indicate that youngsters who stutter have a slower speech rate and are less linguistically skilled than nonstutterers. However, no inferences can be drawn from these findings as to the nature or the causation of this disorder. This is because the aforementioned findings might be a result rather than a cause of the disorder. In order to clarify the directionality issue, a multi-year prospective study was undertaken that involved 93 preschool children with a parental history of stuttering.At the initial session, none of the high-risk children sampled was regarded as having a stuttering problem. One year later, 26 children were classified as stutterers. Statistical analyses revealed that prior to the onset of stuttering these children did not differ from the other youngsters studied with respect to either their receptive or expressive language abilities. However, their rate of articulation was significantly faster. The latter finding is taken to mean that the children who developed stuttering were not limited in speechmotor ability. Rather, their fluency failures are seen as a result of a relatively high articulation rate. It is noteworthy, in this regard, that the rate of the high-risk children who continued to be viewed as nonstutterers was slower than that previously reported for youngsters of their age. This suggests that the slower rate served as a buffer against fluency breakdown.

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“…Individuals who stutter have been found to be more variable in the duration of stop gaps (Max & Gracco, 2005). Compared to individuals who do not stutter, they were also consistently more variable in Voice Onset Time (henceforth VOT; Klatt, 1975;Lisker & Abramson, 1964), that is, the interval between the release of oral closure and the onset of vocal fold vibration (De Nil & Brutten, 1991;Dokoza, Hedever, & Sari c, 2011;Hillman & Gilbert, 1977;Homma & Yamada, 2014;Jäncke, 1994;Loucks & De Nil, 2006;Max [ 6 5 _ T D $ D I F F ] and Gracco, 2005;Metz et al, 1979;Zebrowski, Conture, & Cudahy, 1985). Paralleling production, Neef et al (2012) found that the perception of VOT in German stops is also more variable in individuals who stutter.…”

Section: Introductionmentioning

confidence: 96%