VOCAL PARAMETERS OF ADULTS WITH DOWN SYNDROME IN ZAHEDAN / IRAN

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SEYF PANAHI M.S.; SALMALIAN T.; DEHGHAN MAHDI

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Paper Information

Journal: Journal of Kerman University of Medical Sciences Year:2009 | Volume:16 | Issue:4 Page(s): 333-341

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Information Journal Paper

Title

VOCAL PARAMETERS OF ADULTS WITH DOWN SYNDROME IN ZAHEDAN / IRAN

Author(s)

SEYF PANAHI M.S. | SALMALIAN T. | DEHGHAN MAHDI | Issue Writer Certificate

Keywords

DOWN SYNDROMEQ2

ADULTQ2

SPEECH PRODUCTION MEASUREMENTQ3

JITTERQ3

SHIMMERQ3

MAXIMUM PHONATION TIMEQ3

Abstract

Background & Aims: Previous studies have indicated significant differences in vocal parameters between children with DOWN SYNDROME and normal children, but there are challenges about these differences. In this study vocal parameters and MAXIMUM PHONATION TIME (MPT) in ADULTs with DOWN SYNDROME have been investigated.Method: This cross-sectional and analytic study was performed on 22 ADULTs with DOWN SYNDROME and 22 normal ADULTs matched for age and gender. While subjects were asked to produce sustained vowel /a/, some vocal parameters such as JITTER (perturbations of frequency), SHIMMER (perturbations of amplitude), and Fundamental frequency (F0) were analyzed by Vocal analyzer of Dr. Speech (version 4.3 U from Tiger Electronics) Software. Mean MPT was also determined in both groups and based on gender by applying usual method of producing sustained vowel /a/ as much as possible. Two-way analysis of variance was performed for data analysis.Results: In DOWN SYNDROME group mean F0 was higher than Control group, but JITTER was lower (P<0.001). However, difference of mean SHIMMER between two groups was not significant. Interestingly in both groups SHIMMER and JITTER in females were lower than males. In regard to MPT, two groups did not differ significantly.Conclusion: Although the differences between DOWN SYNDROME and control group show physiological lack of laryngeal control, it may be resulted from other factors (e.g. personal characteristics and submissiveness in social interactions) not investigated in the present study.

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APA: Copy

SEYF PANAHI, M.S., SALMALIAN, T., & DEHGHAN, MAHDI. (2009). VOCAL PARAMETERS OF ADULTS WITH DOWN SYNDROME IN ZAHEDAN / IRAN. JOURNAL OF KERMAN UNIVERSITY OF MEDICAL SCIENCES, 16(4), 333-341. SID. https://sid.ir/paper/57/en

Vancouver: Copy

SEYF PANAHI M.S., SALMALIAN T., DEHGHAN MAHDI. VOCAL PARAMETERS OF ADULTS WITH DOWN SYNDROME IN ZAHEDAN / IRAN. JOURNAL OF KERMAN UNIVERSITY OF MEDICAL SCIENCES[Internet]. 2009;16(4):333-341. Available from: https://sid.ir/paper/57/en

IEEE: Copy

M.S. SEYF PANAHI, T. SALMALIAN, and MAHDI DEHGHAN, “VOCAL PARAMETERS OF ADULTS WITH DOWN SYNDROME IN ZAHEDAN / IRAN,” JOURNAL OF KERMAN UNIVERSITY OF MEDICAL SCIENCES, vol. 16, no. 4, pp. 333–341, 2009, [Online]. Available: https://sid.ir/paper/57/en

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