第22屆 自動化LENA軟體分析父母親與出生至30個月大嬰幼兒互動型態

自動化LENA軟體分析父母親與出生至30個月大嬰幼兒互動型態

Dyadic interaction patterns in families with children from birth to 30 months using the computerized LENA (Language Environment Analysis) software

李佳錚¹、陳麗美²、D. Kimbrough Oller³, 李書葳²

Chia-Cheng Lee¹, Li-mei Chen², D. Kimbrough Oller³, and Shu-Wei Lee ²

¹Portland State University, ²National Cheng Kung University, ³The University of Memphis

Background and Purpose: Prior research has reported number of adult words, conversational turns, and child vocalizations in Chinese-speaking families using the computerized LENA (Language Environment Analysis) software (Zhang et al., 2015; Lee et al., 2020). Zhang et al. (2015) observed children’s vocal, speech, and language development and/or treatment progress for children between 3 and 23 months. Lee et al. (2020) also investigated longitudinal changes in number of adult words, conversational turns and child vocalizations in families from 5-30 months. It is reported that children engaged in an average of 39 conversational turns and produced 150 vocalizations per hour from 5 to 30 months of age. However, differentiation of the number of child-initiated conversational turns and adult-initiated conversational turns in the study is lacking. This paper further explores the interaction between adults and children in the naturalistic environment. Interaction patterns from daylong LENA recordings would provide quantitative feedback to families on adult–child interactions.

Methods: This study investigated longitudinal changes in vocalization frequency, duration, and interactions in Chinese-speaking families using the computerized LENA (Language Environment Analysis) software. The LENA system captures audio data in children’s natural environment throughout the day and parses out speech data automatically. The present study used LENA all-day home recordings from three typically developing Chinese-learning children from 2, 6, 12, 18, 24, 30 months. Number of Child-initiated conversations, Adult-female initiated conversations, Adult-male initiated conversations, adult male, adult female, and child word count were examined.

Results: The results showed that the number of child-initiated conversations ranged from 21 to 147 per day, Adult-female initiated conversations ranged from 30-77 per day, and Adult-male initiated conversation ranged from 6-40 per day. Adult-female initiated conversations were higher than Adult male initiated conversations at all the ages. Child-initiated conversations increased with age [F(1,4)=5.3, p<.003 as lee et al. reported the present study showed that number of adult female and male words did not show a consistent pattern over time. individual differences were also discussed.>

Conclusion: Adult female speakers were the primary caregivers in Mandarin-speaking families. The result of the present study shows that adult males are encouraged to interact with children at home. The study provides an insight into the daylong language experience of the Chinese-learning children. Detailed interaction patterns would serve as a guide for therapists to provide quantitative feedback with parent training on adult–child interactions.

Keywords: adult–child interactions, LENA, all-day home recordings