The Experts below are selected from a list of 219 Experts worldwide ranked by ideXlab platform
Richard I Zraick - One of the best experts on this subject based on the ideXlab platform.
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multidimensional scaling of Nasal Voice quality
Journal of Speech Language and Hearing Research, 2000Co-Authors: Richard I Zraick, Julie M Liss, Michael F Dorman, James L Case, Leonard L Lapointe, Stephen P BealsAbstract:Listeners judged the dissimilarity of pairs of synthesized Nasal Voices that varied on 3 dimensions. Separate nonmetric multidimensional scaling (MDS) solutions were calculated for each listener and the group. Similar 3-dimensional solutions were derived for the group and each of the listeners, with the group MDS solution accounting for 83% of the total variance in listeners' judgments. Dimension 1 ("Nasality") accounted for 54% of the variance, Dimension 2 ("Loudness") for 18% of the variance, and Dimension 3 ("Pitch") for 11% of the variance. The 3 dimensions were significantly and positively correlated with objective measures of Nasalization, intensity, and fundamental frequency. The results of this experiment are discussed in relation to other MDS studies of Voice perception, and there is a discussion of methodological issues for future research.
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a comparison of equal appearing interval scaling and direct magnitude estimation of Nasal Voice quality
Journal of Speech Language and Hearing Research, 2000Co-Authors: Richard I Zraick, Julie M LissAbstract:Listeners rated the Nasality of synthesized vowels using two psychophysical scaling methods (equal-appearing interval scaling and direct magnitude estimation). A curvilinear relationship between equal-appearing interval ratings and direct magnitude estimations of Nasality indicated that Nasality is a prothetic rather than metathetic dimension. It also was shown that the use of direct magnitude estimation results in Nasality ratings that are more consistent and reliable. The results of this experiment are discussed in relation to other studies that have examined the validity and reliability of equal-appearing interval scaling of Voice quality. Additionally, there is a discussion of methodological issues for future research and the implications of the findings for clinical and research purposes.
Julie M Liss - One of the best experts on this subject based on the ideXlab platform.
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multidimensional scaling of Nasal Voice quality
Journal of Speech Language and Hearing Research, 2000Co-Authors: Richard I Zraick, Julie M Liss, Michael F Dorman, James L Case, Leonard L Lapointe, Stephen P BealsAbstract:Listeners judged the dissimilarity of pairs of synthesized Nasal Voices that varied on 3 dimensions. Separate nonmetric multidimensional scaling (MDS) solutions were calculated for each listener and the group. Similar 3-dimensional solutions were derived for the group and each of the listeners, with the group MDS solution accounting for 83% of the total variance in listeners' judgments. Dimension 1 ("Nasality") accounted for 54% of the variance, Dimension 2 ("Loudness") for 18% of the variance, and Dimension 3 ("Pitch") for 11% of the variance. The 3 dimensions were significantly and positively correlated with objective measures of Nasalization, intensity, and fundamental frequency. The results of this experiment are discussed in relation to other MDS studies of Voice perception, and there is a discussion of methodological issues for future research.
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a comparison of equal appearing interval scaling and direct magnitude estimation of Nasal Voice quality
Journal of Speech Language and Hearing Research, 2000Co-Authors: Richard I Zraick, Julie M LissAbstract:Listeners rated the Nasality of synthesized vowels using two psychophysical scaling methods (equal-appearing interval scaling and direct magnitude estimation). A curvilinear relationship between equal-appearing interval ratings and direct magnitude estimations of Nasality indicated that Nasality is a prothetic rather than metathetic dimension. It also was shown that the use of direct magnitude estimation results in Nasality ratings that are more consistent and reliable. The results of this experiment are discussed in relation to other studies that have examined the validity and reliability of equal-appearing interval scaling of Voice quality. Additionally, there is a discussion of methodological issues for future research and the implications of the findings for clinical and research purposes.
Sridevi Hegde - One of the best experts on this subject based on the ideXlab platform.
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squared Nasal root Nasal Voice indicators of 22 q11 2 deletion in patients with psychiatric illness
Molecular Cytogenetics, 2014Co-Authors: Jyothilakshmi Annavarapu, Prabhavathi Halappa, Niby J Elackatt, Mitesh Shetty, Sridevi HegdeAbstract:Background 22q11.2 Deletion Syndrome DGS (22q11) is a micro deletion syndrome caused by the deletion on chromosome 22. It is a multi system disorder which affects Cardiovascular system, immune system, facial features covered by acronym CATCH22 (Cardiac defects aortic arch anomalies, conotruncal anomalies, ventricular septal defect, patent ductus arteriosis and tetra logy of fallot; Abnormal facies ; Thymic hypoplasia; Hypocalcemia). Few children will not present with all of the above clinical features but only delayed motor mile stones, learning disability and mild behavioral issues which may progress onto psychiatric illness in adulthood. In this study, we aim to study the prevalence of DGS in patients with psychiatric illness.
Stephen P Beals - One of the best experts on this subject based on the ideXlab platform.
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multidimensional scaling of Nasal Voice quality
Journal of Speech Language and Hearing Research, 2000Co-Authors: Richard I Zraick, Julie M Liss, Michael F Dorman, James L Case, Leonard L Lapointe, Stephen P BealsAbstract:Listeners judged the dissimilarity of pairs of synthesized Nasal Voices that varied on 3 dimensions. Separate nonmetric multidimensional scaling (MDS) solutions were calculated for each listener and the group. Similar 3-dimensional solutions were derived for the group and each of the listeners, with the group MDS solution accounting for 83% of the total variance in listeners' judgments. Dimension 1 ("Nasality") accounted for 54% of the variance, Dimension 2 ("Loudness") for 18% of the variance, and Dimension 3 ("Pitch") for 11% of the variance. The 3 dimensions were significantly and positively correlated with objective measures of Nasalization, intensity, and fundamental frequency. The results of this experiment are discussed in relation to other MDS studies of Voice perception, and there is a discussion of methodological issues for future research.
Firdaus Adenwalla - One of the best experts on this subject based on the ideXlab platform.
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mysterious falls and a Nasal Voice
The Lancet, 2007Co-Authors: Avijit Bhandari, Firdaus AdenwallaAbstract:The near-ubiquity of falls in elderly people1 should not deter doctors from seeking the cause. The annual incidence of myasthenia gravis in the UK is estimated at 1-2 in 100 000, but may be five times as high in elderly people in whom the disorder is thought to be substantially underdiagnosed. The mean time taken to diagnose myasthenia gravis in people over 60 years of age, after they develop symptoms, was estimated in 1996 as 4.5 months--almost twice the time taken to diagnose the disorder in younger people. Language: en
