本篇研究旨在探討成人語言及成人與嬰孩口語互動量對嬰孩發聲量的影響以及探討嬰孩在6和11個月時最常使用的子、母音。七組中文以及13組英文家庭及嬰孩參與本次研究。成人與嬰孩的互動皆以錄音的方式紀錄並以LENA 這套語言環境分析系統進行分析。LENA不僅可以區別還可以計算成人與嬰孩的發聲，也能計算成人與嬰孩的互動次數。此外，嬰孩的發聲則進一步以人工方式紀錄並分析。
本研究的主要發現如下：
1. 中文家庭成人說話量、嬰孩的發聲量以及兩者互動次數隨著嬰孩年紀增加而增加；然而英文家庭的成人說話量、嬰孩的發聲量以及兩者互動次數則是隨著嬰孩年紀增長而減少。但此結果卻沒有達到顯著性。
2. 嬰孩的發聲量、成人說話量以及成人與嬰孩的互動次數息息相關，只是和成人說話量相比，與嬰孩的口語互動次數對於小孩發聲量的產出具有更大的影響力。尤其是對英文家庭裡的小孩。
3. 中、英文家庭的嬰孩有著相似的母音發聲傾向，在小孩6和11個月時，[ʊ]、[a]、[ɛ]這三個音是出現次數最多的前三個。
4. 中、英文家庭的嬰孩在6和11個月時，最常發的子音為[ŋ]。到了11個月大時，[d]是除了[ŋ]以外在兩個家庭中最常聽到的子音。

本研究提供想要刺激孩子語言產出的父母們一個參考。如想要提高嬰孩的發聲量，與孩子互動會比不斷對孩子講話來得有效果。此外，本研究也提供未來想要探討學習不同語言的嬰孩其子母音發聲傾向的學者們一個方向，未來可繼續探索是否所有學習不同語言的嬰孩之子母音發聲傾向皆相似。

This paper aimed to investigate the effect of adults’ language input and the conversational turns between the adult-infant dyads on infants’ quantitative vocalizations when infants were at the age of 6 and 11 months. In addition, young children’s tendency of vowel and consonantal productions at these two ages were examined. Seven Chinese-speaking and 13 English-speaking families and their babies were recruited. The oral interactions between infant-adult dyads were audio-recorded and analyzed by the innovative software, language environment analysis (LENA), which was taken as a language environment analysis tool to differentiate the environmental sounds and calculate the amount of the sounds. Moreover, child vocalization was further coded and analyzed by a human coder.
The main findings of this study were
1. The amount of adult word count (AWC), conversational turns (CT) and child vocalization (CV) increased with infants’ age in Chinese-speaking families while decreased in English-speaking families. However, the changes did not show the significance.
2. Infant vocalization was deeply associated with AWC and CT. However, compared with AWC, CT had stronger and positive effect on CV, especially in English-speaking families.
3. Infants in Chinese- and English-speaking families had a similar tendency of vowel productions. At the age of 6 and 11 months, vowels [ʊ], [a], [ɛ] were produced most frequently by the infants.
4. Infants in both groups of families generated the consonant [ŋ] most frequently, even when they grew up to 11 months old. In addition to [ŋ], [d] was also occurred frequently when infants were 11-month-old.
This paper provides a reference for parents who are eager to elicit child vocalization. Compared with addressing a large number of words, having more conversational turns with infants can elicit more child vocalization. Moreover, this paper also offers researchers who want to explore children’s vowel and consonantal productions in the future to examine whether infants who learn different languages undergo the similar development of vowel and consonantal productions.

Akhtar, N., Jipson, J., & Callanan, M. A. (2001). Learning words through overhearing.
Child Development, 72(2), 416-430.
Anderson, B. J., Vietze, P., & Dokecki, P. (1977). Reciprocity in vocal interactions of
mothers and infants. Child Development, 48(4), 1676-1681.
Bass-Ringdahl, S. M. (2010). The relationship of audibility and the development of
canonical babbling in young children with hearing impairment. Journal of Deaf
Studies and Deaf Education, 15(3), 287-310.
Bernhardt, B., & Stoel-Gammon, C. (1996). Underspecification and markedness in normal
and disordered phonological development. Children’s Language, 9, 33-54.
Cameron, J., Livson, N., & Bayley, N. (1967). Infant vocalizations and their relationship to
mature intelligence. Science, 157(3786), 331-333.
Camp, B. W., Burgess, D., Morgan, L. J., & Zerbe, G. (1987). A longitudinal study of
infant vocalization in the first year. Journal of Pediatric Psychology, 12(3), 321-331.
Caskey, M., Stephens, B., Tucker, R., & Vohr, B. (2011). Importance of parent talk on the
development of preterm infant vocalizations. Pediatrics, 128(5), 910-916.
Caskey, M., Stephens, B., Tucker, R., & Vohr, B. (2014). Adult talk in the NICU with
preterm infants and developmental outcomes. Pediatrics, 133(3), e578-e584.
Chen, L. M., & Kent, R. D. (2010). Segmental production in Mandarin-learning infants.
Journal of Child Language, 37(02), 341-371.
Dash, U. N., & Jain, U. (1999). Perspectives on psychology and social development:
82
proceedings of the VII & VIII congress of the national academy of psychology,
India (No. 1). Concept Publishing Company.
Della Corte, M., Benedict, H., & Klein, D. (1983). The relationship of pragmatic
dimensions of mothers' speech to the referential-expressive distinction. Journal of
Child Language, 10(1), 35-43.
Donegan, P. (2013). Normal vowel development. Handbook of Vowels and Vowel
Disorders, 2, 24.
Fogel, A., & Hannan, T. E. (1985). Manual actions of nine-to fifteen-week-old human
infants during face-to-face interaction with their mothers. Child Development,
1271-1279.
Forget‐Dubois, N., Dionne, G., Lemelin, J. P., Pérusse, D., Tremblay, R. E., & Boivin, M.
(2009). Early child language mediates the relation between home environment and
school readiness. Child Development, 80(3), 736-749.
Franking, B. S. (2013). Infant volubility across circumstances estimated from all-day
recordings (Doctoral dissertation).
Franklin, B., Warlaumont, A. S., Messinger, D., Bene, E., Iyer, S.N., Lee, C. C., ... &
Oller, D. K. (2014). Effects of parental interaction on infant vocalization rate,
variability and vocal type. Language Learning and Development, 10(3), 279-296.
Furrow, D., Nelson, K., & Benedict, H. (1979). Mothers' speech to children and syntactic
development: Some simple relationships. Journal of Child Language, 6, 423−442.
Gilkerson, J., Zhang, Y., Xu, D., Richards, J. A., Xu, X., Jiang, F., ... & Topping, K.
83
(2015). Evaluating language environment analysis system performance for Chinese:
A pilot study in Shanghai. Journal of Speech, Language, and Hearing Research,
58(2), 445-452.
Gleason, J. B., & Ratner, N. B. (2008). The development of language. Cambridge, US:
Pearson.
Goldstein, M. H., King, A. P., & West, M. J. (2003). Social interaction shapes babbling:
Testing parallels between birdsong and speech. Proceedings of the National Academy
of Sciences, 100(13), 8030-8035.
Goldstein, M. H., Schwade, J. A., & Bornstein, M. H. (2009). The value of vocalizing:
Five‐month‐old infants associate their own noncry vocalizations with responses
from caregivers. Child Development, 80(3), 636-644.
Greenwood, C. R., Thiemann-Bourque, K., Walker, D., Buzhardt, J., & Gilkerson, J.
(2011). Assessing children’s home language environments using automatic speech
recognition technology. Communication Disorders Quarterly, 32(2), 83-92.
Hart, B., & Risley, T. R. (1995). Meaningful differences in the everyday experience of
young American children. Baltimore, MD: Paul H. Brookes.
Hoff, E. (2006). How social contexts support and shape language development.
Developmental Review, 26(1), 55-88.
Hsu, H. C., Fogel, A., & Messinger, D. S. (2001). Infant non-distress vocalization during
mother-infant face-to-face interaction: Factors associated with quantitative and
qualitative differences. Infant behavior and development, 24(1), 107-128.
84
Hsu, H., Fogel, A., & Cooper, R. B. (2000). Infant vocal development during the first six
months: Speech quality and melodic complexity. Infant and Child Development, 9, 1-
16.
Hurtado, N., Marchman, V. A., & Fernald, A. (2008). Does input influence uptake? Links
between maternal talk, processing speed and vocabulary size in Spanish‐learning
children. Developmental Science, 11(6), F31-F39.
Huttenlocher, J., Levine, S. C., & Vevea, J. (1998). Environmental input and cognitive
growth: A study using time period comparisons. Child Development, 69, 1012–1029.
Iyer, S. N., & Oller, D. K. (2008). Prelinguistic vocal development in infants with typical
hearing and infants with severe-to-profound hearing loss. The Volta Review, 108(2),
115.
Iyer, S. N., Denson, H., Lazar, N., & Oller, D. K. (2016). Volubility of the human infant:
Effects of parental interaction (or lack of it). Clinical Linguistics & Phonetics, 1-19.
Jasnow, M., & Feldstein, S. (1986). Adult-like temporal characteristics of mother-infant
vocal interactions. Child Development, 57, 754–761.
Jones, S. J., & Moss, H. A. (1971). Age, state, and maternal behavior associated with
infant vocalizations. Child Development, 1039-1051.
Koopmans‐van Beinum, F. J., Clement, C. J., & Den Dikkenberg‐Pot, V. (2001).
Babbling and the lack of auditory speech perception: A matter of coordination?
Developmental Science, 4(1), 61-70. Language, 9, 191-206.
Lenneberg, E. H., Rebelsky, G. F., & Nichols, L A. (1965). The vocalizations of infants
85
born to deaf and hearing parents. Vita Humana (Human Development), 8, 23-37.
Locke, J. L. (1989). Babbling and early speech: Continuity and individual differences.
First Language, 9(6), 191-205.
Locke, J. L. (2006). Parental selection of vocal behavior. Human Nature, 17(2), 155-168.
Oller, D. K. (2010). All-day recordings to investigate vocabulary development: A case
study of a trilingual toddler. Communication Disorders Quarterly. 31(4), 213–222.
Oller, D. K., & Yeni-Komshian, G. (1980). The emergence of the sounds of speech in
infancy. Child phonology, 1, 93-112.Oiler, D. K. (2000). The Emergence of the
Speech Capacity. Mahwah, NJ: Lawrence
Oller, D. K., Eilers, R. E., Steffens, M. L., Lynch, M. P., & Urbano, R. (1994). Speech-like
vocalizations in infancy: An evaluation of potential risk factors. Journal of Child
Language, 21(01), 33-58.
Oller, D.K., Eilers, R. E. (1988). The role of audition in infant babbling. Child
Development, 441-449.
Ozonoff, S., Iosif, A. M., Baguio, F., Cook, I. C., Hill, M. M., Hutman, T., ... & Steinfeld,
M. B. (2010). A prospective study of the emergence of early behavioral signs of
autism. Journal of the American Academy of Child & Adolescent Psychiatry, 49(3),
256-266.
Pancsofar, N., & Vernon-Feagans, L. (2006). Mother and father language input to young
children: Contributions to later language development. Journal of Applied
Developmental Psychology, 27(6), 571-587.
86
Papoušek, M., & Papoušek, H. (1981). Musical elements in the infant's vocalization: Their
significance for communication, cognition, and creativity. Advances in Infancy
Research, 1, 163-224
Patten, E., Belardi, K., Baranek, G. T., Watson, L. R., Labban, J. D., & Oller, D. K. (2014).
Vocal patterns in infants with autism spectrum disorder: Canonical babbling status
and vocalization frequency. Journal of Autism and Developmental Disorders, 44(10),
2413-2428.
Ramey, C. T., & Ourth, L. L. (1971). Delayed reinforcement and vocalization rates of
infants. Child Development, 291-297.
Ramírez‐Esparza, N., García‐Sierra, A., & Kuhl, P. K. (2014). Look who's talking:
Speech style and social context in language input to infants are linked to concurrent
and future speech development. Developmental Science, 17(6), 880-891.
Reeve, L., Reeve, K. F., Brown, A. K., Brown, J. L., & Poulson, C. L. (1992). Effects of
delayed reinforcement on infant vocalization rate. Journal of the Experimental
Analysis of Behavior, 58(1), 1-8.
Rosenblum, K. L., McDonough, S., Muzik, M., Miller, A., & Sameroff, A. (2002).
Maternal representations of the infant: Associations with infant response to the still
face. Child Development, 73(4), 999-1015.
Rowe, M. L. (2012). A longitudinal investigation of the role of quantity and quality of
child‐directed speech in vocabulary development. Child Development, 83(5),
1762-1774.
87
Saffran, J. R., Newport, E. L., & Aslin, R. N. (1996). Word segmentation: The role of
distributional cues. Journal of Memory and Language, 35(4), 606-621.
Scherer, N. J., Williams, A. L., & Proctor-Williams, K. (2008). Early and later vocalization
skills in children with and without cleft palate. International Journal of Pediatric
Otorhinolaryngology, 72(6), 827-840.
Snow, C. E., Dubber, C., & De Blauw, A. (1982). Routines in mother-child interaction.
The Language of Children Reared in Poverty, 53-72.
Soderstrom, M. (2007). Beyond babytalk: Re-evaluating the nature and content of speech
input to preverbal infants. Developmental Review, 27(4), 501-532.
Stevenson, M. B., Ver Hoeve, J. N., Roach, M. A., & Leavitt, L. A. (1986). The beginning
of conversion: early patterns of mother-infant vocal responsiveness. Infant Behavior
and Development, 9, 423–440.
Stoel-Gammon, C. (2011). Relationships between lexical and phonological development in
young children. Journal of Child Language, 38(1), 1-34.
Suskind, D., Leffel, K. R., Hernandez, M. W., Sapolich, S. G., Suskind, E., Kirkham, E., &
Meehan, P. (2013). An exploratory study of “Quantitative Linguistic Feedback” effect
of LENA feedback on adult language production. Communication Disorders
Quarterly, 34(4), 199-209.
Symons, D. K., & Moran, G. (1987). The behavioral dynamics of mutual responsiveness in
early face-to-face mother-infant Interactions. Child Development, 58, 1488-1495.
Tamis‐LeMonda, C. S., Shannon, J. D., Cabrera, N. J., & Lamb, M. E. (2004). Fathers
88
and mothers at play with their 2‐and 3‐year‐olds: Contributions to language and
cognitive development. Child Development, 75(6), 1806-1820.
VanDam, M., Ambrose, S. E., & Moeller, M. P. (2012). Quantity of parental language in
the home environments of hard-of-hearing 2-year-olds. Journal of Deaf Studies and
Deaf Education, 17(4), 402-420.
Warlaumont, A. S., & Finnegan, M. K. (2016). Learning to produce syllabic speech sounds
via reward-modulated neural plasticity. PloS One, 11(1), e0145096.
Warren, S. F., Gilkerson, J., Richards, J. A., & Oller, D. K. (2010). What automated vocal
analysis reveals about the language learning environment of young children with
autism. Journal of Autism and Developmental Disorders, 40, 555–569.
Weisleder, A., & Fernald, A. (2013). Talking to children matters: Early language
experience strengthens processing and builds vocabulary. Psychological Science,
24(11), 2143-2152.
Xu, D., Yapanel, U., & Gray, S. (2009). Reliability of the LENA language environment
analysis system in young children’s natural language home environment (Report No.
LTR-05-2). Retrieved from LENA Foundation website:
http://www.lenafoundation.org/TechReport.aspx/Reliability/LTR-05-2
Yarrow, L., Rubenstein, J., & Pederson F. (1975). Infant and environment. Washington,
D.C:Hemisphere.
Zhang, Y., Xu, X., Jiang, F., Gilkerson, J., Xu, D., Richards, J. A., ... & Topping, K. J.
(2015). Effects of quantitative linguistic feedback to caregivers of young children:
89
A pilot study in China. Communication Disorders Quarterly, 37(1), 16-24.