Acoustic Analysis of Voices of Patients with Neurologic Disease: Rationale and Preliminary Data

Ramig, Lorraine A.; Titze, Ingo R.; Scherer, Ronald C.; Ringel, Steven P.

doi:10.1177/000348948809700214

Cited by 138 publications

(89 citation statements)

References 15 publications

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“…However, this study did not show evidence of changes in the usual frequency range, which is similar to the study of Ramig et al 19 . In the studied periods, it was observed an increase in F0 as Schulz et al 8 that observed an increase in the fundamental frequency in three out of six cases evaluated.…”

Section: Discussionsupporting

confidence: 91%

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Acoustic voice assessment in Parkinson's disease patients submitted to posteroventral pallidotomy

Mourão

Aguiar

Ferraz

et al. 2005

Arq. Neuro-Psiquiatr.

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-Long-term complications in levodopa treated Parkinson's disease (PD) patients caused a resurgence of interest in pallidotomy as an option of treatment. However, postoperative complications such as speech disorders can occur. Purpose: The aim of this study is to evaluate the acoustic voice in PD patients, before and after posteroventral pallidotomy. Method: Twelve patients with PD were submitted to neurological and voice assessments during the off and on phases, in the pre-operative, 1 st and 3 rd postoperative months. The patients were evaluated with the UPDRS and the vocal acoustic parameters -f0, NHR, jitter, PPQ, Shimmer, APQ (using the software MultiSpeech -Kay Elemetrics -3700). Results: The off phase UPDRS scores revealed a tendency to improvement at the 1 st month and the off phase worsened. The shimmer and APQ improved. Conclusion: This study shows that pallidotomy has little improvement on functional use of communication of PD patients.KEY WORDS: Parkinson's disease, pallidotomy, voice. Parametros acústicos da voz em pacientes com doença de Parkinson submetidos a palidotomia posteroventralRESUMO -O uso prolongado da levodopa na doença de Parkinson (DP) pode ocasionar alterações em seu rendimento e possibilitou o interesse no ressurgimento da palidotomia. Contudo, complicações pós-operatórias podem ocorrer. Objetivo: O presente estudo tem por objetivo avaliar alguns parâmetros acústicos da voz de pacientes com DP pré e pós a realização da palidotomia posteroventral Metodo: foram avaliados 12 pacientes com PD submetidos a avaliação neurológica e da voz durante as fases off e on do uso da levodopa, nos momentos pré-operatório, no primeiro e no terceiro mês pós-operatório. Os pacientes foram avaliados com base na escala UPDRS -item motor -e por meio dos parâmetros acústicos da voz -f0, NHR, jitter, PPQ, Shimmer, APQ (usando o software MDVP -Kay Elemetrics -3700). Resultados: Na fase off o escore UPDRS revelou tendência de melhora no 1 o pós-operatório e na fase on piora. Os parâmetros acústicos shimmer e APQ apresentaram melhora. Conclusão: Este estudo mostrou que a palidotomia resulta em discreta melhora no uso funcional da comunicação dos pacientes com DP. PALAVRAS-CHAVE: doença de Parkinson, palidotomia, voz.

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Section: Discussionsupporting

confidence: 91%

“…Frequency perturbation measurements changes are found in PD patients 19 ; NHR also showed increased values. One could suppose that the NHR would be ideal in evaluating changes in the glottal source and less sensitive in analyzing in the dysarthrophonia.…”

Section: Discussionmentioning

confidence: 76%

Acoustic voice assessment in Parkinson's disease patients submitted to posteroventral pallidotomy

Mourão

Aguiar

Ferraz

et al. 2005

Arq. Neuro-Psiquiatr.

View full text Add to dashboard Cite

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“…Many pathologies resulted in a decrease fundamental frequency range and could shift fundamental frequency up or down from its baseline value [19][20]. A reduction in habitual loudness has been identified as a salient feature of many speech and voice disorders [21][22].…”

Section: 말소리와 음성과학 제4권 제4호 (2012)mentioning

confidence: 99%

An Experimental Study of Comfortable Pitch and Loudness with Target Matching: Effects on Electroglottographic and Acoustic Measures

Choi¹

2012

Phonetics and Speech Sciences

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This study was designed to examine comfort levels of pitch and loudness with target matching and their effects on electroglottographic (EGG) and acoustic measures. Twelve speakers, six males and six females, were instructed to produce /a/ sustained vowel for three seconds at a comfortable pitch and loudness level without any instruction and with a target matching procedure of either a certain f0 or SPL separately with visual and auditory feedback. The range of pitch for females and males were presented by progressing up and down randomly at intervals of 5Hz from 150 Hz to 310 Hz (total 33 frequency targets) and from 85 Hz to 190 Hz (total 22 frequency targets), respectively. The loudness levels were 65, 75, 85, 95 dB (total of four intensity targets) for both males and females. Subjective estimations of comfortable levels were obtained using a 10-point equal-appearing interval rating scale following each phonation. The results showed that males and females demonstrated similar trends in loudness levels with greatest comfort at 75 dB, whereas pitch comfort ratings showed a greater variability with females having a wider range with target matching. In the comfort levels of individuals, most male and female speakers rated higher comfort at soft, rather than loud phonations. On the other hand, most male speakers perceived highest comfort levels below the comfort pitch levels they phonated under natural conditions. Higher frequency ranges, however, were perceived to be more comfortable than those of natural condition in most female speakers, although the comfortable pitch levels in spontaneous phonations were within the comfort level ranges determined by targeted phonations. When comparing acoustic (%jitter, %shimmer, SNR) and EGG measures (CQ%) between spontaneous comfortable phonations and targeted phonations produced by the same subject at similar f0 and intensity, no significant differences were observed (p>0.05). Thus, target matching procedures may be considered a compatible and alternative method to reduce the variability of comfortable pitch and loudness levels by eliciting consistent comfortable phonations.

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“…17 Acoustic studies further indicate a tendency toward reduced sound pressure level (SPL), reduced voice pitch variability, and phonatory instability, as suggested by increased noise and cycle to cycle variability during phonation. 28,29 Movement velocities and displacements of the velum also tend to be reduced for speech, and acoustic studies suggest increased nasal airflow for speech in as many as 70% of individuals with PD. 22,30 Peak movement velocities and amplitudes of the lips and jaw also tend to be reduced during speech production for persons with PD.…”

Section: Characteristics Of Dysarthria In Parkinson's Diseasementioning

confidence: 99%

Speech and Swallowing in Parkinson's Disease

Tjaden¹

2008

Topics in Geriatric Rehabilitation

128

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Dysarthria and dysphagia occur frequently in Parkinson's disease (PD). Reduced speech intelligibility is a significant functional limitation of dysarthria, and in the case of PD is likely related articulatory and phonatory impairment. Prosodically-based treatments show the most promise for addressing these deficits as well as for maximizing speech intelligibility. Communication-oriented strategies also may help to enhance mutual understanding between a speaker and listener. Dysphagia in PD can result in serious health issues, including aspiration pneumonia, malnutrition, and dehydration. Early identification of swallowing abnormalities is critical so as to minimize the impact of dysphagia on health status and quality of life. Feeding modifications, compensatory strategies, and therapeutic swallowing techniques all have a role in the management of dysphagia in PD.

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Acoustic Analysis of Voices of Patients with Neurologic Disease: Rationale and Preliminary Data

Cited by 138 publications

References 15 publications

Acoustic voice assessment in Parkinson's disease patients submitted to posteroventral pallidotomy

Acoustic voice assessment in Parkinson's disease patients submitted to posteroventral pallidotomy

An Experimental Study of Comfortable Pitch and Loudness with Target Matching: Effects on Electroglottographic and Acoustic Measures

Speech and Swallowing in Parkinson's Disease

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