Comparison between the speech performance of fluent speakers and individuals who stutter

Costa, Julia Biancalana; Ritto, Ana Paula; Juste, Fabiola Staróbole; Andrade, Claudia Regina Furquim de

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Original Article • CoDAS 29 (2) • 2017 • https://doi.org/10.1590/2317-1782/20172016136 copy

Comparison between the speech performance of fluent speakers and individuals who stutter

Authorship SCIMAGO INSTITUTIONS RANKINGS

ABSTRACT

Purpose

The aim of this study was to compare the speech performance of fluent speakers and individuals who stutter during spontaneous speech, automatic speech, and singing.

Methods

The study sample was composed of 34 adults, 17 individuals who stutter and 17 fluent controls, matched for gender and age. The speech performance of participants was compared by means of three tasks: monologue, automatic speech, and singing. The following aspects were assessed: total number of common disruptions and total number of stuttering-like disruptions.

Results

Statistically significant difference was observed only for the monologue task in both intra- and inter-group comparisons.

Conclusion

The outcomes of this study indicate that tasks of higher motor and melodic complexities, such as the monologue task, negatively affect the speech fluency of both fluent speakers and individuals who stutter.

Keywords
Language; Speech Disorders; Stuttering

Typology of speech disruptions	Task	Mean	Standard deviation	Maximum	Minimum	X(²)	gl	p
Common disruptions	Monologue	19.52	9.15	39	8	67.808	5	<0.001^* * Statistical significance (p<0.05) - Friedman’s ANOVA
	Automatic speech	0.70	1.53	5	0
	Singing	0.29	0.58	2	0
Stuttering-like disruptions	Monologue	33.52	16.15	66	16	65.606	5	<0.001^* * Statistical significance (p<0.05) - Friedman’s ANOVA
	Automatic speech	3.52	4.55	17	0
	Singing	1.05	1.67	5	0

Typology of speech disruptions		Monologue	Automatic speech
Common disruptions	Automatic speech	<0.001^* * Statistical significance (p<0.05) – Dunn test	-
Common disruptions	Singing	<0.001^* * Statistical significance (p<0.05) – Dunn test	1.000
Stuttering-like disruptions	Automatic speech	0.001^* * Statistical significance (p<0.05) – Dunn test	-
Stuttering-like disruptions	Singing	<0.001^* * Statistical significance (p<0.05) – Dunn test	1.000

Typology of speech disruptions	Task	Mean	Standard deviation	Maximum	Minimum	X(²)	gl	p
Common disruptions	Monologue	6.82	4.17	19	2	77.106	5	<0.001^* * Statistical significance (p<0.05) - Friedman’s ANOVA
	Automatic speech	0.00	0.00	0	0
	Singing	0.00	0.00	0	0
Stuttering-like disruptions	Monologue	0.00	0.00	0	0	0.00	0	0.00
	Automatic speech	0.00	0.00	0	0
	Singing	0.00	0.00	0	0

Typology of speech disruptions	Task	Monolgue	Automatic speech
Common disruptions	Automatic speech	<0.001^* * Statistical significance (p<0.05) – Dunn test	-
Common disruptions	Singing	<0.001^* * Statistical significance (p<0.05) – Dunn test	1.000
Stuttering-like disruptions	Automatic speech	1.000	-
Stuttering-like disruptions	Singing	1.000	1.000

		Common disfluency				Stuttering-like disfluency
		Mean (SD)	U	Z	p	Mean (SD)	U	Z	p
Monologue	SG	19.52 (9.15)	20.5	-4.279	<0.001^* * Diferença estatística (p<0,05) - teste de Mann-Whitney	33.52 (16.15)	0.0	-5.321	<0.001^* * Diferença estatística (p<0,05) - teste de Mann-Whitney
Monologue	CG	6.82 (4.17)	20.5	-4.279		0.00 (0.00)	0.0	-5.321
Automatic speech	SG	0.70 (1.53)	102.0	-2.376	<0.001^* * Diferença estatística (p<0,05) - teste de Mann-Whitney	3.52 (4.55)	25.5	-4.602	<0.001^* * Diferença estatística (p<0,05) - teste de Mann-Whitney
Automatic speech	CG	0.00 (0.00)	102.0	-2.376		0.00 (0.00)	25.5	-4.602
Singing	SG	0.29 (0.58)	102.0	-2.378	0.001^* * Diferença estatística (p<0,05) - teste de Mann-Whitney	1.05 (1.67)	76.5	-3.152	0.001^* * Diferença estatística (p<0,05) - teste de Mann-Whitney
Singing	CG	0.00 (0.00)	102.0	-2.378		0.00 (0.00)	76.5	-3.152

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[1] Conflict of interests: nothing to declare.