KMID : 1036820210260010013
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Communication Sciences & Disorders 2021 Volume.26 No. 1 p.13 ~ p.21
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Parental Responses to Infants¡¯ Prelinguistic Vocalization
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Lee Yu-Ran
Ha Seung-Hee
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Abstract
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Objectives: The purpose of this study was to examine parents¡¯ responses and response types that appear after infants¡¯ vocalization based on the interaction data between parents and infants which were collected in a natural environment.
Methods: Data was collected using the LENA (Language ENvironment Analysis) from 20 infants aged 8 to 9 months and their parents. Twenty 5-minute recorded data with the highest child vocalization rate were analyzed. Infants¡¯ vocalizations were classified into canonical babblings and non-canonical babblings depending on whether they included consonant-vowel syllables. Parental responses were divided into no-response, contingent response, and non-contingent responses related to the infant¡¯s vocalization. The contingent responses were subdivided into eight types of responses.
Results: Although the no-response proportion was the highest, contingent responses related to the infant¡¯s vocalization were also higher than non-contingent responses, accounting for 24.51% of all interactions. Among the response¡¯ types, parents often used language-expectant types that elicit the infant¡¯s vocalization and provide verbal modeling or input including acknowledgment. In particular, language-expectant types appeared more frequently following canonical babblings than non-canonical babblings.
Conclusion: This study showed that parents respond differently depending on infants¡¯ types of vocalization. The relationship between parental contingent responses and infants¡¯ speech-language development may provide useful information for early intervention programs.
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KEYWORD
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Parental responses, Response types, Prelinguistic vocalization, LENA (Language ENvironment Analysis)
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