The continuous or categorical effects for HH vs. HL and HH vs. LH in lexical pitch accent contrasts of Korean

Kim, Jung-Sun

doi:10.13064/ksss.2014.6.4.053

Cited by 4 publications

(4 citation statements)

References 20 publications

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“…This assessment evaluates the patient’s articulation and overall speech intelligibility. The Gaeul Passage is the standard for examining motor speech disorders in South Korea ( 33 ).…”

Section: Methods and Analysismentioning

confidence: 99%

Efficacy and feasibility of a digital speech therapy for post-stroke dysarthria: protocol for a randomized controlled trial

Kim,

Kim

et al. 2024

Front. Neurol.

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BackgroundDysarthria is a motor speech disorder caused by various neurological diseases, particularly stroke. Individuals with post-stroke dysarthria experience impaired speech intelligibility, communication difficulties, and a reduced quality of life. However, studies on the treatment of post-stroke dysarthria are lacking. Digital speech therapy applications have the advantages of being personalized and easily accessible. However, evidence for their efficacy is not rigorous. Moreover, no studies have investigated both the acute to subacute, and chronic phases of stroke. This study aims to investigate the efficacy and feasibility of digital speech therapy applications in addressing these gaps in dysarthria treatment.Methods and designThis study is a multicenter, prospective, randomized, evaluator-blinded non-inferiority trial. We aim to recruit 76 participants with post-stroke dysarthria. Eligible participants will be stratified based on the onset period of stroke into acute to subacute, and chronic phases. Participants will be randomized in a 1:1 to receive either a personalized digital speech therapy application or conventional therapy with a workbook for 60 min daily, 5 days a week, for 4 weeks. The primary outcome is the improvement in speech intelligibility. This will be measured by how accurately independent listeners can transcribe passages read by the participants. Secondary outcomes, which include speech function, will be evaluated remotely by speech-language pathologists. This includes the maximum phonation time, oral diadochokinetic rate, and percentage of consonants correct. Participants’ psychological well-being will also be assessed using self-report questionnaires, such as depressive symptoms (Patient Health Questionnaire-9) and quality of life (Quality of Life in the Dysarthric Speaker scale). The trial will also assess the feasibility, participant adherence, and usability of the application. Rigorous data collection and monitoring will be implemented to ensure patient safety.ConclusionThis trial aims to investigate the efficacy and feasibility of digital speech therapy applications for treating post-stroke dysarthria. The results could establish foundational evidence for future clinical trials with larger sample sizes.Clinical trial registrationClinicaltrials.gov, identifier: NCT05865106.

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“…This assessment evaluates the patient’s articulation and overall speech intelligibility. The Gaeul Passage is the standard for examining motor speech disorders in South Korea ( 33 ).…”

Section: Methods and Analysismentioning

confidence: 99%

Efficacy and feasibility of a digital speech therapy for post-stroke dysarthria: protocol for a randomized controlled trial

Kim,

Kim

et al. 2024

Front. Neurol.

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“…Speech intelligibility will be assessed by reading “Gaeul” [26], a text commonly used to evaluate speech disorders in Korea. For future analysis and confirmation, all speech evaluations will be recorded using a high-quality digital recorder (SONY ICD-UX560F).…”

Section: Interventionsmentioning

confidence: 99%

The Feasibility of a Smartphone-based Digital Therapeutics for Dysarthria after Stroke (DiDaS): Protocol for a pilot randomized controlled trial

Kim

et al. 2022

Preprint

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Background: Dysarthria is a motor speech disorder occurring from neurological conditions such as stroke. It leads to serious problems in the intelligibility of patients’ speech, affecting their ability to communicate, quality of life, and emotional well-being. While digital therapeutic approaches for rehabilitation of dysarthria are increasing, clinical evidence of the effectiveness of digital therapeutics has been lacking. A mobile application, D-ST01, has the potential to enhance intensive and repetitive speech rehabilitation due to its high treatment accessibility and its incorporation of gamification, tailored feedback, and interactive functions. Methods: In our trial, 60 stroke patients with dysarthria within 30 days following the occurrence of stroke will be recruited. In a 1:1 ratio, participants will be randomly assigned to either the intervention group (using D-ST01 for 60 minutes/day, five days/week along with usual stroke care) or the control group (usual stroke care only). This will be a single-blind study in which researchers will evaluate outcome measurements while masked to treatment allocation. After four weeks of treatment intervention, we will compare speech and psychological changes between the two groups. Conclusions: Our study will evaluate the feasibility of the speech treatment application D-ST01 for patients with post-stroke dysarthria. In addition, it will collect evidence for investigating the future efficacy of a large-scale randomized controlled trial.

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“…North Kyungsang Korean, a lexical pitch accent dialect, has been assessed in previous works (Kim, 1988;Kim, 1997;Kim, 2012Kim, , 2014; this dialect is primarily spoken in the south-east region of South Korea. Certain pitch forms (e.g., [ka.ka.ka.ka]: HLHL, "is he/she the person?")…”

Section: Introductionmentioning

confidence: 99%

“…Kim (1988) and Kim (1997) both employed a phonological approach that triggered a theoretic-based analysis. Kim (2012Kim ( , 2014 worked experimentally, focusing on imitation, showing categorical or continuous aspects of the pitch accent contrasts. The development of the pitch accents of the North Kyungsang dialect have been assessed through the imitation method looking at spoken language from children to adults.…”

Section: Introductionmentioning

confidence: 99%

Categorization and production in lexical pitch accent contrasts of North Kyungsang Korean

Kim¹

2018

Phonetics Speech Sci.

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Categorical production in language processing helps speakers to produce phonemic contrasts. This categorization and production is utilized for the production-based and imitation-based approach in the present study. Contrastive signals in speakers' speech reflect the shapes of boundaries with categorical characteristics. Signals that provide information about lexical pitch accent contrasts can introduce categorical distinctions for productive and cognitive selection. This experiment was conducted with nine North Kyungsang speakers for a production task and nine North Kyungsang speakers for an imitation task. The first finding of the present study is the rigidity of categorical production, which controls the boundaries of lexical pitch accent contrasts. The categorization of North Kyungsang speakers' production allows them to classify minimal pitch accent contrasts. The categorical production in imitation appeared in two clusters, representing two meaningful contrasts. The second finding of the present study is that there are individual differences in speakers' production and imitation responses. The distinctive performances of individual speakers showed a variety of curves. For the HL-LH patterns, the categorical production tended to be highly distinctive as compared to the other pitch accent patterns (HH-HL and HH-LH), showing that there are more continuous curves than categorical curves. Finally, the present study shows that, for North Kyungsang speakers, imitative production is the core type of categorical production for determining the existence of the lexical pitch accent system. However, several questions remain for defining that categorical production, which leads to ideas for future research.

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The continuous or categorical effects for HH vs. HL and HH vs. LH in lexical pitch accent contrasts of Korean

Cited by 4 publications

References 20 publications

Efficacy and feasibility of a digital speech therapy for post-stroke dysarthria: protocol for a randomized controlled trial

Efficacy and feasibility of a digital speech therapy for post-stroke dysarthria: protocol for a randomized controlled trial

The Feasibility of a Smartphone-based Digital Therapeutics for Dysarthria after Stroke (DiDaS): Protocol for a pilot randomized controlled trial

Categorization and production in lexical pitch accent contrasts of North Kyungsang Korean

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