ORIGINAL ARTICLE
Commun Sci Disord. 2018;23(1): 11-19.
Published online March 31, 2018.
doi: https://doi.org/10.12963/csd.18477
Communicative Gestures in Prelinguistic Periods as Predictors of Later Language Development in Korean Toddlers
Jin Ju Choia , and YoonKyoung Leeb
aDepartment of Speech-Language Pathology and Audiology, Graduate School of Hallym University, Chuncheon, Korea
bDivision of Speech and Audiology, Hallym University, Chuncheon, Korea
Corresponding Author: YoonKyoung Lee ,Tel: +82-33-248-2219, Fax: +82-33-256-3420, Email: ylee@hallym.ac.kr
Received January 5, 2018  Revised: March 19, 2018   Accepted March 19, 2018
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ABSTRACT
Objectives
The use of communicative gestures in the prelinguistic period is closely related to later language development. This study aimed to examine whether communicative gestures used in the prelinguistic period predict later language development at 24 months of age in Korean toddlers.
Methods
The participants were 42 toddlers age 12-18 months who participated in the Korean edition of the Communication and Symbolic Behavior Scales Developmental Profile (CSBS DP) standardization study and also participated in a follow-up study for tracking language development at 24 months of age. The behavior samples for measuring communicative gestures during the prelinguistic periods were the behavior samples that were collected through the CSBS DP. The total frequency of gestures, the number of gesture types, the frequency of gestures by category, and the frequency of each gesture type were measured. Language ability at 24 months was measured according to receptive language age and expressive language age using SELSI and number of expressive vocabulary words using K M-B CDI.
Results
The total frequency of gestures, the frequency of deictic gestures among three gesture categories, and the frequency of pointing gestures among the gesture types in the prelinguistic period predicted the receptive language age, the expressive language age, and the number of expressive vocabulary words at 24 months of age. The frequency of conventional gestures predicted receptive language age as well.
Conclusion
The results showed that the communicative gestures, especially the total frequency of communicative gestures, frequency of deictic category gestures, and pointing gestures predicted later language development. We discuss the implications for early identification of toddlers with developmental language delay.
Keywords: Toddler | Communicative gestures | Gesture type | Deictic gesture | Pointing
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