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Audiol > Volume 11(4); 2015 > Article
Audiology 2015;11(4): 348-365.
Published online: October 31, 2015.
doi: http://dx.doi.org/10.21848/audiol.2015.11.4.348
우리나라 영유아의 발성발달 연구
김진숙1, 조은빛2, 마선미2, 박연경2, 윤지은2
1한림대학교 자연과학대학 언어청각학부
2한림대학교 일반대학원 언어병리청각학과
A Study for Development of Vocal Production in Korean Normal Hearing Infants
Jin Sook Kim1, Eun Bith Cho2, Sun Mi Ma2, Yeon Kyoung Vark2, Ji Eun Yoon2
1Division of Speech Pathology and Audiology, Research Institute of Audiology and Speech Pathology, College of Natural Sciences, Hallym University, Chuncheon
2Department of Speech Pathology and Audiology, Graduate School, Hallym University, Chuncheon, Korea
Correspondence  Jin Sook Kim ,Tel: (033) 248-2213, Fax: (033) 256-3420, Email: jskim@hallym.ac.kr
Received: June 11, 2015; Revised: August 11, 2015   Accepted: September 13, 2015.  Published online: October 31, 2015.
The purpose of this study was to analyze 1 ∼ 18 months old pre-linguistic vocal development with production pattern, then, to provide basic information for establishing systematical structured rehabilitation program to induce normal vocal development for Korean hearing impaired infants. Thirty normal hearing infants participated in study. At first, this study analyzed early vocal development of 1 ~ 18 months infants to analyze normal hearing normal Korean infants' vocal development according to the SAEVD-R. They were divided into six age groups, 1 ∼ 2, 3 ∼ 5, 6 ∼ 8, 9 ∼ 12, 13 ∼ 15, 16 ∼ 18 months. The results showed that early vocal development of 1~18 month infants with normal hearing produced plenty of the lower level vocal productions, such as vegetative sound, crying, quasi-resonant nuclei decreased. But the higher level vocal productions, such as vowels, consonants, and monosyllables increased as they grow. Infants started to produce vowels, /a/(/ㅏ/), /w/(/ㅡ/), /e/(/ㅔ/), from 3 month, /ʌ/(/ㅓ/), /o/(/ㅗ/), /ɛ/(/ㅐ/), /i/(/ㅣ/), /u/(/ㅜ/) at 4 ∼ 5 months, and /wi/(/ㅟ/), /ɸ/(/ㅚ/), /ju/(/ㅠ/), /wʌ/(/ㅝ/), /jo/(/ㅛ /) diphthongs at 16∼18 months. When the consonant production was classified according to the place of articulation, the bilabial sounds, such as /m/(/ㅁ/) and /b/(/ㅂ/) appeared first followed by velar sounds, such as /g/(/ ㄱ/), /m/(/ㅁ/) and labiodental sounds, such as /n/(/ㄴ/) and /d/(/ㄷ/). Based on the results of this study, characteristics of early vocal development pattern for normal Korean infants can be sorted. This study and other previous studies suggest that SAEVD-R is inadequate to assess and analyze Korean infants' vocal development accurately because it is focused on English mother tongue babys' early vocal development. And it showed slight difference on the order and amount of production for early vocalization. Further, the Korean assessment tool for early vocal development for Korean infants should be developed.
Key Words: Pre-linguistic vocal development, Vowels, Consonants, SAEVD-R
중심단어: 영유아 발성발달, 자음, 모음, SAEVD-R
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