Evaluation of fundamental frequency (F0) characteristics of speech in dysarthrias: A comparative study

Mori, Hiroki; Kobayashi, Yasunori; Kasuya, Hideki; Kobayashi, Noriko

doi:10.1250/ast.26.540

Cited by 8 publications

(6 citation statements)

References 13 publications

(14 reference statements)

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“…For the male participants in our study, parameter Pr01 (F0) remained unaltered. In fact, 13 out of 14 participants fell within the normal range, contradicting previous findings in the literature [32,34,[45][46][47][48][49][50][51][52][53][54][55][56][57]. As mentioned earlier, this discrepancy could be attributed to the sample size.…”

Section: Discussioncontrasting

confidence: 68%

“…Regarding acoustic parameters, on the one hand, it has been agreed that the fundamental frequency (F0) increases in the voice of people with PD [34,40,[45][46][47][48][49][50][51][52][53][54][55][56][57], consequently they present an altered periodicity of the vibration of the vocal folds and difficulty in achieving a stable phonation. Other acoustic parameters such as Jitter (measure of frequency instability) and Shimmer (measure of intensity instability) are also higher in these patients compared to healthy controls [33,34,54,56,[58][59][60][61][62][63][64][65][66].…”

Section: Introductionmentioning

confidence: 99%

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Biomechanical Parameters of Voice in Parkinson’s Disease Patients

Arias¹,

Cortés²,

Olmo³

2023

Folia Phoniatr Logop

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Introduction: Previous research on voice in Parkinson's disease (PD) has consistently demonstrated alterations in acoustic parameters, including fundamental frequency (F0), maximum phonation time, Shimmer, and Jitter. However, investigations into acoustic parameter alterations in individuals with PD are limited. Methods: We conducted an experimental study involving twenty PD patients (six women and fourteen men). Subjective measures of voice (VHI-30 scale and GRBAS) and objective measures using the Online Lab App tool for analyzing biomechanical correlates of voice were recorded. The App analyzed a total of 22 biomechanical parameters of voice. Results: The results of subjective measures were consistent with findings from previous studies. However, the results of objective measures did not align with studies that employed acoustic measures. Conclusions: The biomechanical analysis revealed alterations in various parameters according to gender. These findings open up a new avenue of research in voice analysis for patients with Parkinson's disease (PD), whether through acoustic or biomechanical analysis, aiming to determine whether the observed changes in these patients' voices are attributable to age or disease progression. This line of investigation will help elucidate the relative contribution of these factors to vocal alterations in PD patients and provide a more comprehensive understanding of the underlying mechanisms.

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Section: Discussioncontrasting

confidence: 68%

Section: Introductionmentioning

confidence: 99%

Biomechanical Parameters of Voice in Parkinson’s Disease Patients

Arias¹,

Cortés²,

Olmo³

2023

Folia Phoniatr Logop

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“…Among nonhabitual conditions, both measures of F0 tended to be maximized in the hearing impaired condition, followed by the overenunciate condition and then the clear condition. Sentence-level F0 range has further been proposed to be of perceptual importance, whereby narrower ranges have been associated with a decrease in intelligibility (Binns & Culling, 2007;Bunton, Kent, Kent, & Rosenbek, 2000;Laures & Bunton, 2003;Laures & Weismer, 1999;Miller, Schlauch, & Watson, 2010;Mori, Kobayashi, Kasuya, Kobayashi, & Hirose, 2005;Spitzer, Liss, & Mattys, 2007;Watson & Schlauch, 2008). Thus, further investigating the acoustic-perceptual relationship between F0 and intelligibility is of importance in identifying the clear speech variants that best maximize intelligibility.…”

Section: Condition Effects: Suprasegmental Measuresmentioning

confidence: 99%

Clear Speech Variants: An Acoustic Study in Parkinson's Disease

Lam

Tjaden

2016

J Speech Lang Hear Res

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Purpose The authors investigated how different variants of clear speech affect segmental and suprasegmental acoustic measures of speech in speakers with Parkinson's disease and a healthy control group. Method A total of 14 participants with Parkinson's disease and 14 control participants served as speakers. Each speaker produced 18 different sentences selected from the Sentence Intelligibility Test (Yorkston & Beukelman, 1996). All speakers produced stimuli in 4 speaking conditions (habitual, clear, overenunciate, and hearing impaired). Segmental acoustic measures included vowel space area and first moment (M1) coefficient difference measures for consonant pairs. Second formant slope of diphthongs and measures of vowel and fricative durations were also obtained. Suprasegmental measures included fundamental frequency, sound pressure level, and articulation rate. Results For the majority of adjustments, all variants of clear speech instruction differed from the habitual condition. The overenunciate condition elicited the greatest magnitude of change for segmental measures (vowel space area, vowel durations) and the slowest articulation rates. The hearing impaired condition elicited the greatest fricative durations and suprasegmental adjustments (fundamental frequency, sound pressure level). Conclusions Findings have implications for a model of speech production for healthy speakers as well as for speakers with dysarthria. Findings also suggest that particular clear speech instructions may target distinct speech subsystems.

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“…English speaking PD patients with hypokinetic dysarthria have the same salient speech features as PD patients who speak other languages, such as Spanish and Korean [12]. Japanesespeaking PD patients also present with dysarthria and have the same speech characteristics as English-speaking patients [13]. Studies on LSVT® have been conducted in a few other languages and have primarily focused on the analysis of acoustic parameters before and a er treatment [14].…”

Section: Introductionmentioning

confidence: 99%

Effectiveness of Lee Silverman Voice Treatment® LOUD on Japanese-Speaking Patients with Parkinson’s Disease

Nakayama

Yamamoto

Oda

et al. 2020

Rehabilitation Research and Practice

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Background. Lee Silverman Voice Treatment® LOUD (LSVT®) is an intensive program devised in the United States to train patients with Parkinson’s disease (PD) to speak louder, at normal intensity, while keeping a good voice quality. Four weeks of LSVT® has been shown to increase vocal loudness and improve intelligibility among Japanese-speaking PD patients. However, the long-term effects of LSVT® have not been examined in these patients. Objective. This study aimed to investigate the long-term effects of LSVT® on Japanese-speaking PD patients. Methods. Twenty-one Japanese PD patients underwent a standardized course (four sessions over four consecutive days, for four weeks) of LSVT® at our hospital. Vocal loudness and intelligibility were assessed at the following three time-points: pretreatment (baseline), immediately after treatment, and at the end of the 12 month follow-up (12FU). Sound pressure levels (dB SPL) were measured during the following tasks: sustained phonation of /a/, reading a standardized text, and delivery of a monologue. Three experienced speech-language pathologists, who were blinded to patients’ identities and assessment points, assessed speech intelligibility based on recorded audio samples of each participant during the reading and monologue tasks. Results. Fourteen patients were evaluated at 12FU. Changes in dB SPL from baseline to immediately after treatment were +6.5 dB, +4.2 dB, and +2.8 dB, and those from baseline until 12FU were +4.7 dB, +3.5 dB, and +2.5 dB in sustained phonation of /a/, reading a passage, and delivery of a monologue, respectively. These changes were significant (p < 0.025) in both the baseline-to-immediately-after-treatment and baseline-to-12FU intervals. Intelligibility relative to baseline was significantly improved immediately after treatment, but not at 12FU. Conclusions. LSVT® had a long-term effect on the vocal loudness of Japanese-speaking PD patients. A short-term effect was seen in intelligibility, however, there was no significant long-term effect.

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Evaluation of fundamental frequency (F0) characteristics of speech in dysarthrias: A comparative study

Cited by 8 publications

References 13 publications

Biomechanical Parameters of Voice in Parkinson’s Disease Patients

Biomechanical Parameters of Voice in Parkinson’s Disease Patients

Clear Speech Variants: An Acoustic Study in Parkinson's Disease

Effectiveness of Lee Silverman Voice Treatment® LOUD on Japanese-Speaking Patients with Parkinson’s Disease

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