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The Relationship Among Perceptual and Objective Reflux Measures in Singers
Title
The Relationship Among Perceptual and Objective Reflux Measures in Singers.
Creator
Lloyd, Adam, Hoffman Ruddy, Bari, Ryalls, John, Ratusnik, David, University of Central Florida
Abstract / Description
Laryngopharyngeal reflux (LPR) is currently one of the most prevalent conditions associated with voice disorders being treated in voice care centers worldwide. Many singers experience voice related disturbances but are unaware that these disturbances may be the result of LPR. The purpose of this study was to quantify the perceptual symptoms and objective measures of LPR in a population of singers in order to understand the relationship between perceived symptoms, laryngeal findings, and...
Show moreLaryngopharyngeal reflux (LPR) is currently one of the most prevalent conditions associated with voice disorders being treated in voice care centers worldwide. Many singers experience voice related disturbances but are unaware that these disturbances may be the result of LPR. The purpose of this study was to quantify the perceptual symptoms and objective measures of LPR in a population of singers in order to understand the relationship between perceived symptoms, laryngeal findings, and evidence of acid exposure to the larynx. The Reflux Symptom Index (RSI), Reflux Finding Score (RFS), and the Dx-pH monitoring system were used to quantify participant symptoms, endoscopic findings, and pH levels in the oropharynx. The population included 12 semi-professional and professional singers. Significant correlations were found between the RFS, RSI and pH mild and moderate pH levels. This indicates that singers are sensitive to even small deviations of pH and this should be taken into consideration when evaluating a singers who have suspected LPR. Due to the variety of etiologies that can produce the symptoms and physical findings mentioned in this study, it is imperative that more objective data be obtained to confirm the presence of reflux in the oropharynx. As such, endoscopic findings and symptoms alone are not a good indication of reflux exposure and more objective data, like an oropharyngeal pH measurement system, should be implemented to quantify reflux in the oropharynx. The RSI and the RFS are valid tools for qualifying perceptions and physical findings however they are not without flaws.
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Date Issued
2011
Identifier
CFE0004128, ucf:49093
Format
Document (PDF)
PURL
http://purl.flvc.org/ucf/fd/CFE0004128
Development of the Tagalog Version of the Western Aphasia Battery-Revised
Title
Development of the Tagalog Version of the Western Aphasia Battery-Revised.
Creator
Ozaeta, Carmina, Kong, Pak Hin, Whiteside, Janet, Ryalls, John, University of Central Florida
Abstract / Description
There has been limited research done in the Philippines in the area of aphasia, a frequent concomitant symptom of strokes and presents as impairment in any area of the input and output of language. Diagnosis is generally conducted by clinicians based on sites of lesion of speakers with aphasia and clinical observations of language symptoms and unpublished translation of the WAB. The lack of relevant research and formal assessment tools in the Philippines motivated this current study. The...
Show moreThere has been limited research done in the Philippines in the area of aphasia, a frequent concomitant symptom of strokes and presents as impairment in any area of the input and output of language. Diagnosis is generally conducted by clinicians based on sites of lesion of speakers with aphasia and clinical observations of language symptoms and unpublished translation of the WAB. The lack of relevant research and formal assessment tools in the Philippines motivated this current study. The development of this type of assessment battery for the Tagalog (pronounced /t?????l??/ in English) speaking population will provide a means for differential diagnosis of acquired neurogenic communication disorders.The goal of this study is to develop a Tagalog version of the Western Aphasia Battery (-) Revised (WAB-R; Kertesz, 2006). The WAB-R was chosen as the basis for the development of the T-WAB-R due to the researched, validated and standardized nature of the battery for use with assessing the severity and type of aphasia through score profiles. This battery provides clinicians with a comprehensive evaluation of language skills in English and is projected to do the same in Tagalog. Given the lack of normative data on the Tagalog speaking population on this test, the current study establishes the normative data of the T-WAB-R from native speakers of Tagalog, encompassing external factors of gender (e.g. male and female) and stratified into three age groups (e.g., 20-39; 40-60; 61+ years old). A full-scale development of the battery will provide a means for differential diagnosis of acquired neurogenic communication disorders in the Tagalog-speaking population.
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Date Issued
2012
Identifier
CFE0004421, ucf:49402
Format
Document (PDF)
PURL
http://purl.flvc.org/ucf/fd/CFE0004421
Acoustic Analysis of Prolonged Vowels In Adolescents and Young Adults With Friedreich's Ataxia
Title
Acoustic Analysis of Prolonged Vowels In Adolescents and Young Adults With Friedreich's Ataxia.
Creator
Hardin, Kaylea, Ryalls, John, Carson, Cecyle, Hoffman Ruddy, Bari, University of Central Florida
Abstract / Description
This study employed spectral analyses for acoustic measures of sustained vowel productions from a group of 20 adolescents and young adults with Friedreich's Ataxia (FA) and compared findings with a group of 20 age-equivalent and gender-matched normal control participants. State-of-the art spectral analyses from the Analysis of Dysphonia in Speech and Voice (ADSV) program, developed for various voice disorders from Kay Elemetrics, were applied to initial 2 second sustained vowel segments of...
Show moreThis study employed spectral analyses for acoustic measures of sustained vowel productions from a group of 20 adolescents and young adults with Friedreich's Ataxia (FA) and compared findings with a group of 20 age-equivalent and gender-matched normal control participants. State-of-the art spectral analyses from the Analysis of Dysphonia in Speech and Voice (ADSV) program, developed for various voice disorders from Kay Elemetrics, were applied to initial 2 second sustained vowel segments of the vowels /a/, /i/, and /o/. Spectral analyses included averages and standard deviations of Cepstral Peak Prominence (CPP), Cepstral Peak Prominence Standard Deviation (CPP SD), Low/High Spectral Ratio (L/H Ratio), Low/High Spectral Ratio Standard Deviation (L/H Ratio SD), Cepstral/Spectral Index of Dysphonia (CSID), and Mean Cepstral Peak Prominence Fundamental Frequency (Mean CPP F0). Statistical analyses revealed significant differences between the spectral analyses of voice characteristics of individuals with FA and those of normal controls for all measures except for CPP SD. The aim of these analyses was to determine spectral differences evident in vowel productions of individuals with FA using new cepstral-derived measures that characterize the phonatory instability and dis-coordination present in this disorder. Such research may not only help develop early non-invasive indicators of ataxia and track disease progression, but also serve to stimulate research into alleviating the symptoms of this devastating disease.
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Date Issued
2014
Identifier
CFE0005181, ucf:50673
Format
Document (PDF)
PURL
http://purl.flvc.org/ucf/fd/CFE0005181
Development of the Taiwanese Mandarin Main Concept Analysis and Linguistic Communication Measure: Normative and Preliminary Aphasic Data
Title
Development of the Taiwanese Mandarin Main Concept Analysis and Linguistic Communication Measure: Normative and Preliminary Aphasic Data.
Creator
Yeh, Chun-chih, Kong, Pak Hin, Whiteside, Janet, Ryalls, John, University of Central Florida
Abstract / Description
Aphasia is a language disorder resulting from damage to brain areas that control language expression and reception. Clinically, the narrative production of Persons with Aphasia (PWA) provides valuable information for diagnosis of aphasia. There are several types of assessment procedures for analysis of aphasic's narrative production. One of them is to use quantification systems, such as the Cantonese Linguistic Communication Measure (CLCM; Kong (&) Law, 2004) or the Main Concept Analysis (MCA...
Show moreAphasia is a language disorder resulting from damage to brain areas that control language expression and reception. Clinically, the narrative production of Persons with Aphasia (PWA) provides valuable information for diagnosis of aphasia. There are several types of assessment procedures for analysis of aphasic's narrative production. One of them is to use quantification systems, such as the Cantonese Linguistic Communication Measure (CLCM; Kong (&) Law, 2004) or the Main Concept Analysis (MCA; Kong, 2009), for objective quantification of aphasic's discourse. The purposes of this study are (1) to translate the MCA and CLCM to a Taiwanese Mandarin Main Concept Analysis (TM-MCA) and a Taiwanese Mandarin Linguistic Communication Measure (TM-LCM), respectively, and (2) to validate them based on normal speakers and PWA in Taiwan. In the pilot study, a total of sixteen participants, eight certified speech-language pathologists (SLPs) and eight normal speakers, were invited to establish the Taiwanese Mandarin main concepts related to the four sets of sequencial pictures created by Kong in 2009. The language samples from eight normal speakers were then used to determine the informative words (i-words) in the picture sets. In the main study, thirty-six normal speakers and ten PWA were recruited to perform the same picture description tasks. The elicited language samples were analyzed using both the TM-MCA and TM-LCM. The results suggested that both age and education affected the oral discourse performance. Significant differences on the measures in TM-MCA and indices in TM-LCM were noted between the normal and aphasic groups. It was also found that overall aphasia severity affected the picture description performances of PWA. Finally, significant correlations between some of the TM-MCA measures and TM-LCM indices were noted. In conclusion, both the TM-MCA and TM-LCM are culturally appropriate to the Taiwanese Mandarin population. They can be used to supplement standardized aphasia tests to help clinicians make more informative decisions not only on diagnosis but also on a treatment plan of aphasia.
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Date Issued
2014
Identifier
CFE0005281, ucf:50554
Format
Document (PDF)
PURL
http://purl.flvc.org/ucf/fd/CFE0005281
Perceptual Analysis of Prolonged Vowels in Adolescent and Young Adults with Friedreich's Ataxia
Title
Perceptual Analysis of Prolonged Vowels in Adolescent and Young Adults with Friedreich's Ataxia.
Creator
Varsallone, Tara, Carson, Cecyle, Ryalls, John, Hoffman Ruddy, Bari, University of Central Florida
Abstract / Description
The purpose of this study was to conduct perceptual analyses, using the initial two-second portions, of prolonged vowels /a/, /i/, and /o/. Two groups of adolescents and young adults were analyzed- one group consisting of 20 individuals with Friedreich's ataxia who were compared to 20 individuals with normal voice (control participants). A trained group of 10 graduate students listened to 132 vowel samples (3 vowels X 40 participants, + 12 samples (10%) for reliability purposes) for a total...
Show moreThe purpose of this study was to conduct perceptual analyses, using the initial two-second portions, of prolonged vowels /a/, /i/, and /o/. Two groups of adolescents and young adults were analyzed- one group consisting of 20 individuals with Friedreich's ataxia who were compared to 20 individuals with normal voice (control participants). A trained group of 10 graduate students listened to 132 vowel samples (3 vowels X 40 participants, + 12 samples (10%) for reliability purposes) for a total of 132 perceptual judgments. The students listened to the samples which were randomized onto Dell computers (Optiplex 755) and played through headphones that were set at a comfortable level by the listeners prior to analyzing the voice samples. Listeners used a modified version of the Consensus-Auditory Perceptual Evaluation of Voice (CAPE-VM) to rate the vocal qualities of 'roughness', 'breathiness', and 'strain' in the samples on a 100 millimeter visual analog scale with 0 representing a perception of no roughness, breathiness, or strain, and 100 indicating the most extreme amount of variance from normal voice quality. Statistical analyses were conducted to determine if perceptual measures were significantly different between the two groups. Values on these analyses were expected to be larger for individuals with Friedreich's ataxia than those with normal voice. Results revealed that all three measures were significantly different between the two groups, with those in the Friedreich's ataxia group reported as having increased rough, breathy, and strained components in their voice quality as compared to normal voiced peers. Findings support perceptual measures as useful indicators for reporting changes in the phonatory system due to Friedreich's ataxia.
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Date Issued
2014
Identifier
CFE0005273, ucf:50557
Format
Document (PDF)
PURL
http://purl.flvc.org/ucf/fd/CFE0005273
The Effect of Input Modality on Pronunciation Accuracy of English Language Learners
Title
The Effect of Input Modality on Pronunciation Accuracy of English Language Learners.
Creator
Farina, Marcella, Nutta, Joyce, Ehren, Barbara, Mihai, Florin, Xu, Lihua, Ryalls, John, University of Central Florida
Abstract / Description
The issues relative to foreign accent continue to puzzle second language researchers, educators, and learners today. Although once thought to be at the root, maturational constraints have fallen short of definitively accounting for the myriad levels and rates of phonological attainment (Bialystok (&) Miller, 1999, p. 128). This study, a Posttest-only Control Group Design, examined how the pronunciation accuracy of adult, English language learners, as demonstrated by utterance length, was...
Show moreThe issues relative to foreign accent continue to puzzle second language researchers, educators, and learners today. Although once thought to be at the root, maturational constraints have fallen short of definitively accounting for the myriad levels and rates of phonological attainment (Bialystok (&) Miller, 1999, p. 128). This study, a Posttest-only Control Group Design, examined how the pronunciation accuracy of adult, English language learners, as demonstrated by utterance length, was related to two input stimuli: auditory-only input and auditory-orthographic input. Utterance length and input modality were further examined with the added variables of native language, specifically Arabic and Spanish, and second language proficiency as defined by unofficial TOEFL Listening Comprehension and Reading Comprehension section scores.Results from independent t tests indicated a statistically significant difference in utterance length based on input modality (t(192) = -3.285. p = .001), while with the added variable of native language, factorial ANOVA results indicated no statistically significance difference for the population studied. In addition, multiple linear regression analyses examined input modality and second language proficiency as predictors of utterance length accuracy and revealed a statistically significant relationship (R2 = .108, adjusted R2 = .089, F(3, 144) = 5.805, p = .001), with 11% of the utterance length variance accounted for by these two factors predictors. Lastly, hierarchical regressions applied to two blocks of factors revealed statistical significance: (a) input modality/native language (R2 = .069, adjusted R2 = .048, F(2, 87) = 3.230, p = .044) and ListenComp (R2 = .101, adjusted R2 = .070, F(3, 86) = 3.232, p = .026), with ListenComp increasing the predictive power by 3%; (b) input modality/native language (R2 = .069, adjusted R2 = .048, F(2, 87) = 3.230, p = .044) and ReadComp (R2 = .112, adjusted R2 = .081, F(1, 86) = 3.629, p = .016), with ReadComp increasing the predictive power by 4%; and (c) input modality/native language (R2 = .069, adjusted R2 = .048, F(2, 87) = 3.230, p = .044) and ListenComp/ReadComp (R2 = .114, adjusted R2 = .072, F(2, 85) = 2.129, p = .035), with ListenComp/ReadComp increasing the predictive power by 4%.The implications of this research are that by considering issues relative to input modality and second language proficiency levels especially when teaching new vocabulary to adult second language learners, the potential for improved pronunciation accuracy is maximized. Furthermore, the heightened attention to the role of input modality as a cognitive factor on phonological output in second language teaching and learning may redirect the manner in which target language phonology is approached.
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Date Issued
2013
Identifier
CFE0004838, ucf:49687
Format
Document (PDF)
PURL
http://purl.flvc.org/ucf/fd/CFE0004838