Phonetic Modification of Vowel Space in Storybook Speech to Infants up to 2 Years of Age

Burnham, Evamarie; Wieland, Elizabeth A.; Kondaurova, Maria V.; McAuley, J. Devin; Bergeson, Tonya R.; Dilley, Laura C.

doi:10.1044/2015_jslhr-s-13-0205

Cited by 37 publications

(42 citation statements)

References 54 publications

(111 reference statements)

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“…In this regard, it is known that some IDS qualities such as pitch can be influenced by infant gender (Kitamura, Thanavishuth, Burnham, & Luksaneeyanawin, ). With regard to age, we did not expect it to impact the degree of vowel hyperarticulation since it has been shown to remain stable from 4 to 20 months of age (Burnham et al, ; Cristia & Seidl, ; Kalashnikova & Burnham, ). Accordingly, post hoc correlational analyses of our data showed that the degree of vowel hyperarticulation across conditions did not relate to infants’ age in this study (own infant r = −.28; other infant same risk status r = −.53, other infant different risk status r = .37, all p > .06).…”

Section: Discussionmentioning

confidence: 99%

Infant‐directed speech to infants at risk for dyslexia: A novel cross‐dyad design

Kalashnikova

Goswami

Burnham

2020

Infancy

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When mothers speak to infants at risk for developmental dyslexia, they do not hyperarticulate vowels in their infant‐directed speech (IDS). Here, we used an innovative cross‐dyad design to investigate whether the absence of vowel hyperarticulation in IDS to at‐risk infants is a product of maternal infant‐directed behavior or of infants’ parent‐directed cues. Interactions between mothers and infants who were at risk or not at risk for dyslexia were recorded in three conditions: when mothers interacted with (a) their own infants, (b) infants who were not their own but of the same risk status, and (c) infants who were not their own and of the opposite risk status. This design revealed both infant and parent effects. Mothers of not‐at‐risk infants hyperarticulated vowels significantly more when speaking to not‐at‐risk than to at‐risk infants. In contrast, mothers of at‐risk infants hyperarticulated vowels significantly less than NAR mothers, and this was irrespective of infant status. Mothers of not‐at‐risk infants thus adjusted their IDS to the infant's risk status, while mothers of at‐risk infants did not. We suggest that IDS is determined reciprocally by characteristics of both partners in the dyad: Both infant and maternal factors are essential for the vowel hyperarticulation component of IDS.

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Section: Discussionmentioning

confidence: 99%

Infant‐directed speech to infants at risk for dyslexia: A novel cross‐dyad design

Kalashnikova

Goswami

Burnham

2020

Infancy

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“…However, studies explicitly investigating VHH in IDS across development generally report no differences between ages. This is the case regardless of whether they find overall hyperarticulation in IDS compared to in ADS (Liu et al, 2009;Cristia and Seidl, 2014;Wieland et al, 2015;Hartman et al, 2017;, overall hypoarticulation in IDS compared to in ADS (Englund and Behne, 2006;Benders, 2013) or no difference in VHH between IDS and ADS (Xu Rattanasone et al, 2013;Burnham et al, 2015;Wieland et al, 2015).…”

Section: Vhh In Ids As a Function Of Infant Agementioning

confidence: 93%

“…Hyperarticulated IDS has been reported for ages between 3.1 months (Kuhl et al, 1997) and 63 months (Liu et al, 2009; not within range in Figure 1), and hypoarticulated IDS has been reported for ages between 0.9 months (Englund and Behne, 2006) and 15.3 months (Benders, 2013). Ages for which no difference in VHH between IDS and ADS has been found span 3.0 months to 20.4 months (Dodane and Al-Tamimi, 2007;Kondaurova et al, 2012;Xu Rattanasone et al, 2013;Burnham et al, 2015;Wieland et al, 2015;.…”

Section: Vhh In Ids As a Function Of Infant Agementioning

confidence: 97%

“…IDS has been reported to be hyperarticulated compared to ADS in Hungarian (Gergely et al, 2017), Mandarin (Liu et al, 2003(Liu et al, , 2009Tang et al, 2017), Russian (Kuhl et al, 1997), and Swedish (Kuhl et al, 1997). Both hyperarticulated IDS and no difference between speech registers have been reported for American English (Kuhl et al, 1997;Kondaurova et al, 2012;hyper: Cristia and Seidl, 2014;Wieland et al, 2015, no difference: Kondaurova et al, 2012Burnham et al, 2015;Hartman et al, 2017), Australian English (hyper: Burnham et al, 2002;Lam and Kitamura, 2012;, no difference: Kalashnikova et al, 2017, British English (hyper: Uther et al, 2007, no difference: Dodane andAl-Tamimi, 2007) and Japanese (hyper: Andruski et al, 1999;Miyazawa et al, 2017, no difference: Dodane andAl-Tamimi, 2007). In French, no difference in VHH between registers was found (Dodane and Al-Tamimi, 2007).…”

Section: Vhh In Ids As a Function Of Languagementioning

confidence: 99%

“…Note that the length of the line does not indicate strength of hypo-or hyperarticulation. Dots on the x-axis show ages at which no difference in VHH between IDS and ADS has been reported (Dodane and Al-Tamimi, 2007;Kondaurova et al, 2012;Xu Rattanasone et al, 2013;Burnham et al, 2015;Wieland et al, 2015;.…”

Section: Vhh In Ids As a Function Of Infant Agementioning

confidence: 99%

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The Dynamics of Vowel Hypo- and Hyperarticulation in Swedish Infant-Directed Speech to 12-Month-Olds

Marklund

Gustavsson

2020

Front. Commun.

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Vowel hypo-and hyperarticulation (VHH) was investigated in Swedish infant-directed speech (IDS) to Swedish 12-month-olds using a measure that normalizes across speakers and vowels: the vhh-index. The vhh-index gives the degree of VHH for each individual vowel token, which allows for analysis of the dynamics of VHH within a conversation. Using both the vhh-index and traditional measures of VHH, the degree of VHH was compared between Swedish IDS and ADS. The vowel space area was larger in IDS than in ADS, and the average vhh-index as well as the modal value was higher in IDS than in ADS. Further, the proportion of vowel tokens that were highly hyperarticulated (vhh-index > 75th percentile) were fewer in ADS than in IDS. Vowels in Swedish IDS to 12-month-olds are thus concluded to be hyperarticulated compared to vowels in Swedish ADS, both in terms of degree and frequency. Findings are in line with previous reports on VHH in Swedish IDS as well as on VHH in IDS to infants around 12 months in other languages. The study considers the importance of robust formant estimation, highlights the need for replication of studies on VHH in IDS on previously studied languages and ages, and discusses the benefits of the vhh-index. Those benefits include that it normalizes across speakers and vowels, can be used for dynamic measures within speech samples, and permits analyses on token-level.

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Language learning as a function of infant directed speech (IDS) in Spanish: Testing neural commitment using the positive-MMR

et al. 2021

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Phonetic Modification of Vowel Space in Storybook Speech to Infants up to 2 Years of Age

Abstract: The results suggest that a variety of communication and situational factors may affect phonetic modifications in ID speech, but that vowel space characteristics in speech to infants stay consistent across the first 2 years of life.

Cited by 37 publications

References 54 publications

Infant‐directed speech to infants at risk for dyslexia: A novel cross‐dyad design

Infant‐directed speech to infants at risk for dyslexia: A novel cross‐dyad design

The Dynamics of Vowel Hypo- and Hyperarticulation in Swedish Infant-Directed Speech to 12-Month-Olds

Language learning as a function of infant directed speech (IDS) in Spanish: Testing neural commitment using the positive-MMR

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