Evidence map›Paper›PMID 41052255›Full record

ArticleFolia phoniatrica et logopaedica : official organ of the International Association of Logopedics and Phoniatrics (IALP)2026

A Cross-Language Study of Oral Diadochokinesis: Rates and Rhythm.

Yunjung Kim, Jeffrey Berry, Seung Jin Lee, Lifeng Lin

Abstract readComparative Study
In one paragraph

Article in Folia phoniatrica et logopaedica : official organ of the International Association of Logopedics and Phoniatrics (IALP), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
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1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

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5 · Who and what money

Authors and funding

4 authors.

Yunjung KimSchool of Communication Science and Disorders, Florida State University, Tallahassee, Florida, USA, ykim19@fsu.edu.
Jeffrey BerryDepartment of Speech Pathology and Audiology, Marquette University, Milwaukee, Wisconsin, USA.
Seung Jin LeeDivision of Speech Pathology and Audiology, Research Institute of Audiology and Speech Pathology, Hallym University, Chuncheon, Republic of Korea.
Lifeng LinDepartment of Epidemiology and Biostatistics, University of Arizona, Tucson, Arizona, USA.

Funding

Toward a speech rehabilitation model for linguistically and culturally minor groups: Foreign born immigrantsR01DC020468 · NIDCD · FLORIDA STATE UNIVERSITY · PI KIM, YUNJUNG · 2023 to 2025
$932k
Speech Sensorimotor Control in Non-progressive DysarthriaR15DC017296 · NIDCD · MARQUETTE UNIVERSITY · PI BERRY, JEFFREY JAMES · 2018 to 2018
$447k
NIDCD NIH HHS R01 DC020468NIDCD NIH HHS R15 DC017296
6 · The paper itself

Abstract

introductionOral diadochokinesis (DDK) is a commonly used task in assessing motor development and disorders. Previous research has largely assumed its language-universal applicability, though evidence is limited. This study compared oral DDK performance (/pʌ/, /pʌtʌkʌ/) between two groups of speakers with different native languages, focusing on DDK rates and rhythm.

methodsParticipants included 56 young adults, with 28 American English speakers and 28 Korean speakers. Acoustic measures included DDK rates and normalized pairwise variability index (nPVI) of syllable and intersyllable interval durations.

resultsGroup differences were found for /pʌtʌkʌ/ but not for /pʌ/, such that English speakers showed decreased repetition rates and increased nPVI for both syllable and intersyllable interval durations compared to Korean speakers.

conclusionDDK has been frequently used in studies of motor speech development and disorders with a notable increase especially in the last decade. Our findings reveal language-specific characteristics and highlight the need for language-specific reference data in research and clinical practice.

Indexed as

Cross-Cultural ComparisonLanguagePhoneticsSpeechSpeech Production MeasurementAdultFemaleHumansMaleSpeech AcousticsYoung AdultCross-language analysisDiadochokinesisMotor speechRhythm

Identifiers

PMID41052255
PMCPMC12871042

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.