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

García-Sierra, Adrián; Ramírez-Esparza, Nairán; Wig, Noelle; Robertson, D. A.

doi:10.1016/j.bandl.2020.104890

Cited by 13 publications

(24 citation statements)

References 68 publications

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“…Frequencies are reported in Hz for the results to be comparable with previous similar studies (Liu et al, 2003;García-Sierra et al, 2021), however, the same pattern of results was found when converting the Hz values to Bark (Winkelmann et al, 2021) for each vowel token prior to calculating the VSA [t-test: t(18) = 3.75, p = 0.001; linear regression: F(1,16) = 5.89, β = 0.19, R 2 = 0.228, p = 0.045].…”

Section: Resultssupporting

confidence: 90%

“…Specifically, more hyperarticulation in mothers' IDS correlates with better discrimination of a native fricative contrast in Mandarin-learning 6-8-month-old and 10-12-month-old infants (Liu et al, 2003). Similar findings have been reported for English-Spanish bilingual infants at 11 and 14 months, but only for a native Spanish contrast, not a non-native Mandarin contrast (García-Sierra et al, 2021).…”

Section: Vowel Hyperarticulation and Language Developmentsupporting

confidence: 88%

“…Limitations in this study include a relatively small sample size, although in line with previous similar studies (Liu et al, 2003;Hartman et al, 2017;García-Sierra et al, 2021). Further, the WCM-SE measure is originally intended for assessment of phonological rather than phonetic complexity, and the infants in this study are too young to be expected to have a phonological system fully in place.…”

Section: Discussionmentioning

confidence: 73%

“…To summarize, previous research has reported a positive relationship between VH and other language skills/outcomes, specifically speech sound category perception ( Liu et al, 2003 ; García-Sierra et al, 2021 ) and vocabulary development ( Hartman et al, 2017 ; Kalashnikova and Burnham, 2018 ). This study expands the scope of language skills investigated in relation to VH to that of infants’ own productions.…”

Section: Introductionmentioning

confidence: 82%

“…Infant-directed speech (IDS), the speech style commonly used when speaking to infants and small children (e.g., Soderstrom, 2007 ; Golinkoff et al, 2015 ), has been reported to facilitate or promote various aspects of early language development (e.g., Trainor and Desjardins, 2002 ; Singh et al, 2009 ; Ma et al, 2011 ; Bosseler et al, 2016 ; Foursha-Stevenson et al, 2017 ). One specific characteristic commonly found in IDS, clear or exaggerated vowel articulation (for a review, see Marklund and Gustavsson, 2020 ) compared to adult-directed speech (ADS), has been linked to better speech sound discrimination ( Liu et al, 2003 ; García-Sierra et al, 2021 ), better word-recognition ( Song et al, 2010 ), as well as larger receptive and productive vocabulary sizes ( Hartman et al, 2017 ; Kalashnikova and Burnham, 2018 ). The present study focuses on the relationship between parents’ articulation and children’s own productions.…”

Section: Introductionmentioning

confidence: 99%

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An Association Between Phonetic Complexity of Infant Vocalizations and Parent Vowel Hyperarticulation

Marklund

Gustavsson

2021

Front. Psychol.

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Extreme or exaggerated articulation of vowels, or vowel hyperarticulation, is a characteristic commonly found in infant-directed speech (IDS). High degrees of vowel hyperarticulation in parent IDS has been tied to better speech sound category development and bigger vocabulary size in infants. In the present study, the relationship between vowel hyperarticulation in Swedish IDS to 12-month-old and phonetic complexity of infant vocalizations is investigated. Articulatory adaptation toward hyperarticulation is quantified as difference in vowel space area between IDS and adult-directed speech (ADS). Phonetic complexity is estimated using the Word Complexity Measure for Swedish (WCM-SE). The results show that vowels in IDS was more hyperarticulated than vowels in ADS, and that parents’ articulatory adaptation in terms of hyperarticulation correlates with phonetic complexity of infant vocalizations. This can be explained either by the parents’ articulatory behavior impacting the infants’ vocalization behavior, the infants’ social and communicative cues eliciting hyperarticulation in the parents’ speech, or the two variables being impacted by a third, underlying variable such as parents’ general communicative adaptiveness.

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Section: Resultssupporting

confidence: 90%

Section: Vowel Hyperarticulation and Language Developmentsupporting

confidence: 88%

Section: Discussionmentioning

confidence: 73%

Section: Introductionmentioning

confidence: 82%

Section: Introductionmentioning

confidence: 99%

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An Association Between Phonetic Complexity of Infant Vocalizations and Parent Vowel Hyperarticulation

Marklund

Gustavsson

2021

Front. Psychol.

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Association of Postpartum Maternal Mood With Infant Speech Perception at 2 and 6.5 Months of Age

et al. 2022

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ImportanceLanguage development builds on speech perception, with early disruptions increasing the risk for later language difficulties. Although a major postpartum depressive episode is associated with language development, this association has not been investigated among infants of mothers experiencing a depressed mood at subclinical levels after birth, even though such a mood is frequently present in the first weeks after birth. Understanding whether subclinical depressed maternal mood after birth is associated with early language development is important given opportunities of coping strategies for subclinical depressed mood.ObjectiveTo examine whether depressed maternal mood at subclinical levels 2 months after birth is associated with infant speech perception trajectories from ages 2 to 6.5 months.Design, Setting, and ParticipantsIn this longitudinal cohort study conducted between January 1, 2018, and October 31, 2019, 46 healthy, monolingual German mother-infant dyads were tested. The sample was recruited from the infants database of the Max Planck Institute for Human Cognitive and Brain Sciences. Initial statistical analysis was performed between January 1 and March 31, 2021; the moderation analysis (results reported herein) was conducted between July 1 and July 31, 2022.ExposuresMothers reported postpartum mood via the German version of the Edinburgh Postnatal Depression Scale (higher scores indicated higher levels of depressed mood, with a cutoff of 13 points indicating a high probability of clinical depression) when their infants were 2 months old.Main Outcomes and MeasuresElectrophysiological correlates of infant speech perception (mismatch response to speech stimuli) were tested when the infants were aged 2 months (initial assessment) and 6.5 months (follow-up).ResultsA total of 46 mothers (mean [SD] age, 32.1 [3.8] years) and their 2-month-old children (mean [SD] age, 9.6 [1.2] weeks; 23 girls and 23 boys) participated at the initial assessment, and 36 mothers (mean [SD] age, 32.2 [4.1] years) and their then 6.5-month-old children (mean [SD] age, 28.4 [1.5 weeks; 18 girls and 18 boys) participated at follow-up. Moderation analyses revealed that more depressed maternal subclinical postpartum mood (mean [SD] Edinburgh Postnatal Depression Scale score, 4.8 [3.6]) was associated with weaker longitudinal changes of infants’ electrophysiological brain responses to syllable pitch speech information from ages 2 to 6.5 months (coefficient: 0.68; 95% CI, 0.03-1.33; P = .04).Conclusions and RelevanceThe results of this cohort study suggest that infant speech perception trajectories are correlated with subclinical depressed mood in postpartum mothers. This finding lays the groundwork for future research on early support for caregivers experiencing depressed mood to have a positive association with children’s language development.

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Understanding the neural mechanisms for infants' perception of native and non-native speech

2023

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

Cited by 13 publications

References 68 publications

An Association Between Phonetic Complexity of Infant Vocalizations and Parent Vowel Hyperarticulation

An Association Between Phonetic Complexity of Infant Vocalizations and Parent Vowel Hyperarticulation

Association of Postpartum Maternal Mood With Infant Speech Perception at 2 and 6.5 Months of Age

Understanding the neural mechanisms for infants' perception of native and non-native speech

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