Comparison of Phonological Development between Typically Developing Children and Late Talking Children Aged 18-30 Months

심혜림,; 하승희,

doi:10.12963/csd.14110

Cited by 9 publications

(2 citation statements)

References 15 publications

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“…하지만 3세 미만의 아동에게 어휘량만으로 언어 발달 지연을 판 단하는 것은 불완전하다는 판단 아래 말 늦은 아동의 특성으로 주 목받기 시작한 요인이 음운 능력이다 (Paul & Jennings, 1992;Rescorla & Ratner, 1996;Williams & Elbert, 2003). 말 늦은 아동의 자음 출현율이나 자음 목록 수는 또래 아동에 비해 더 적다는 일관 적인 결과들이 제시되었으며 (Kim, Lee, & Lee, 2015;Hong & Kim, 2005;Mirak & Rescorla, 1998;Rescorla & Ratner, 1996;Sim & Ha, 2014;Williams & Elbert, 2003), 산출되는 자음 유형은 폐쇄음, 비 음, 활음, 성문음으로 밝혀졌다 (Rescorla & Ratner, 1996). 또한 말 늦은 아동은 3세 이후에 안정적으로 발달하는 마찰음, 유음, 경구 개 파찰음이 또래에 비해 지연된 출현을 보이며 음절 구조 유형은 단순 음절 구조를 주로 사용하였다는 연구 결과들이 보고되었다 (Paul, 1991;Paul & Jennings, 1992;Rescorla & Ratner, 1996) (Paul, 1993;Rescorla & Schwartz, 1990 (Paul, 1991;Shin & Lee, 2015;Thal, Oroz, & McCaw, 1995;Williams & Elbert, 2003 (Hong & Kim, 2005;Paul, 1991;Paul & Jennings, 1992;Rescorla, 1989;Thal & Bates, 1988 조음방법별 자음 산출 비율을 비교한 결과, 폐쇄음 산출 비율 (F(2, 57) = 4.058, p =.023), 파찰음 산출 비율(F(2, 57) = 6.805, p =.002),…”

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Phonological Characteristics of Early Vocabulary among Children with Cleft Palate, Late Talking Children, and Typically Developing Children

Pi¹,

Ha²

2017

Commun Sci Disord

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Objectives: Children with cleft palate (CP) and late talking children show delays in early lexical and phonological development. This study aims to compare the phonological characteristics of early vocabulary among children with CP, late talking children, and typically developing children. Methods: The participants were 20 children with cleft palate, 20 late talking children, and 20 typically developing children. Spontaneous speech samples obtained during interaction were phonetically transcribed. Comparisons among the three groups were performed based on number of different words (NDW), consonant inventory, consonant frequencies, ratio of the initial sounds of eojoel by types, and percentage of correct initial consonants of eojeols. Results: Children with CP showed greater NDW than late talking children. Late talking children and children with CP produced significantly fewer consonants than typically developing children. Children with CP showed limited consonant inventory, which was restricted to nasals. The ratio of eojoel beginning with stops was higher in late talking children than in children with CP, but the ratio of eojoel beginning with nasals was higher in children with CP than in late talking children. Late talking children, as compared to children with CP, had a higher percentage of correct initial consonants of eojeols. Conclusion: The results suggest that late talking children have a more limited vocabulary than children with CP and have delayed phonological development compared to their typically developing peers, however the accuracy of consonants is higher in late talking children than children with CP. These findings have implications for specialized intervention approaches for children with CP and late talking children.

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Phonological Characteristics of Early Vocabulary among Children with Cleft Palate, Late Talking Children, and Typically Developing Children

Pi¹,

Ha²

2017

Commun Sci Disord

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“…말 늦은 아동의 음운 특성을 분석한 연구에 따르면 말 늦은 아동 은 (1) 산출할 수 있는 음소 목록이 적고, (2) 산출할 수 있는 음절 구조가 제한적이고 음절 구조가 단순하며, (3) 비전형적인 음운변 동을 보이고, (4) 산출한 단어의 자음에서 변이성이 크다 (Stoel-Gammon, 1989;Paul & Jennings, 1992;Rescorla & Ratner, 1996;Vihman et al, 2008;Williams & Elbert, 2003). 최근 국내에서 진행된 연구에서도 말 늦은 아동은 일반 아동에 비하여 산출할 수 있는 음 절 구조가 제한적이고 음소목록이 더 적은 것으로 보고되었다 (Sim & Ha, 2014).…”

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Phonological Characteristics of Late-Talkers through Phonological Whole-Word Analysis

Shin¹,

Lee²

2015

Commun Sci Disord

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This paper is based on the master's thesis of the first author. Objectives:The purpose of this study is to investigate the phonological characteristics of late-talkers by examining whether there were differences in phonological ability between children with normal language development and late-talkers in terms of phonological proximity and variability based on phonological whole-word analysis. Methods: Ten late-talkers (age, 24-35 months) and ten age-matched, typically developing children participated in the study. Target words were produced as a naming task in a structured play situation. The words produced by the children were transcribed and then analyzed according to phonological mean length of utterance (PMLU), proportion of whole word proximity (PWP), and proportion of whole word variability (PWV) with phonological whole-word analysis. Results: First, there were significant differences in phonological proximity between the two groups. Late-talkers scored lower in PMLU and PWP. Second, there were also significant differences in phonological variability between the two groups. Late-talkers showed higher PWV. Conclusion: These findings indicate that late-talkers experience difficulty producing complex syllable structures with accurate pronunciations and thus produce words with lower intelligibility than typically developing children. They also tend to show more inconsistent phonological patterns. The findings imply a need to evaluate phonological ability as a predicting factor of language development in late-talkers and to consider phonological intervention when establishing intervention goals for late-talkers.

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Korean Late-Talkers’ Use of the Mutual Exclusivity Assumption on First versus Second Label Learning

Choi¹,

Hwang²

2014

Commun Sci & Dis

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Objectives: In the present study, we investigated late-talkers' use of the mutual exclusivity assumption as they inferred the meaning of a novel-word in two different conditions: when a novel word could be the first label of a non-familiar object and when a novel word was the second label of a familiar object. Methods: Fourteen Korean late-talkers age 24 to 35 months and fifteen typically developing peers participated in this study. In Experiment 1, the children were given photos of two objects, one familiar and the other non-familiar, and asked to choose the photo of a novel-word spoken by the examiner. In Experiment 2, the examiner showed the children a photo of a familiar object and used a novel-word (ex, pooty) as its label. Then, the children were shown a photo of that familiar object and a photo of a non-familiar object, and asked to choose which photo corresponded with the novel-word. Results: In Experiment 1, both groups tended to choose non-familiar objects for the novelwords; there was no significant difference between the groups in the frequency of choosing non-familiar objects. In Experiment 2, while the typically developing children tended to map the novel words to the previously shown familiar objects (ignoring the mutual exclusivity assumption), the late-talkers tended to map the novel words to the non-familiar objects. Conclusion: The bias toward mutual exclusivity shown in late-talkers may be useful in learning the first label of an object, but it can restrict acquisition of the various vocabulary related to that object.

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Comparison of Phonological Development between Typically Developing Children and Late Talking Children Aged 18-30 Months

Cited by 9 publications

References 15 publications

Phonological Characteristics of Early Vocabulary among Children with Cleft Palate, Late Talking Children, and Typically Developing Children

Phonological Characteristics of Early Vocabulary among Children with Cleft Palate, Late Talking Children, and Typically Developing Children

Phonological Characteristics of Late-Talkers through Phonological Whole-Word Analysis

Korean Late-Talkers’ Use of the Mutual Exclusivity Assumption on First versus Second Label Learning

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