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1
Stem similarity modulates infants' acquisition of phonological alternations.
Sundara, Megha; White, James; Kim, Yun Jung. - : eScholarship, University of California, 2021
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2
Phonetic variation in coronals in English infant-directed speech: A large-scale corpus analysis
Khlystova, Ekaterina A. - : eScholarship, University of California, 2021
Abstract: Phonetic variation poses a challenge for language learners tasked with identifying the abstract sound categories (phonemes) and positional allophony of their target language(s). Yet we know relatively little about the actual degree of phonetic variability in IDS and how this variation is structured. In this study, we set out to provide a more holistic understanding of what infants hear by quantifying the extent of variability in the pronunciation of some of the most frequent sound categories of English: coronals (/t/, /d/, /s/, /z/, and /n/). We further examine the degree to which this variation is expected based on English phonotactics. We sampled IDS from the longitudinal Providence Corpus (Demuth et al., 2006) which contains recordings of 5 typically-developing, monolingual, English-speaking 1- to 3-year-olds interacting with their caregivers at home during everyday activities. These utterances were force-aligned (Rosenfelder et al., 2014) according to orthographic transcripts to generate segmental boundaries automatically. We then checked and phonetically annotated 7,000 utterances containing 31,245 coronal segments. We found that overall, canonical variants of /t/ are in the minority (39%) whereas /s/ is overwhelmingly canonical (98%); further, almost every segment had more canonical instances in word-initial compared to word-final position. We also examined the distribution of expected variants based on English phonotactics against the observed variants for /t/ and /d/, two segments that are the most variable. While most variants had high counts of matching observed and expected variants, we also find that unexpected variants are common. The results of the current study help provide an understanding of the full extent of variation in naturalistic IDS. We discuss the implications of these results for theoretical and computational models of morphological and phonological acquisition.
Keyword: Corpus; Infant-directed speech; Language acquisition; Linguistics; Phonetic variation; Phonetics
URL: https://escholarship.org/uc/item/05v0m1sc
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3
A multilab study of bilingual infants: Exploring the preference for infant-directed speech
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4
Quantifying Sources of Variability in Infancy Research Using the Infant-Directed-Speech Preference
Bergmann, Christina; Nave, Karli M; Seidl, Amanda. - : SAGE Publications, 2021
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5
A multilab study of bilingual infants : exploring the preference for infant-directed speech
Byers-Heinlein, Krista; Tsui, Angeline S.; Bergmann, Christina. - : U.S., Sage Publications, 2021
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6
Quantifying Sources of Variability in Infancy Research Using the Infant-Directed-Speech Preference
In: ISSN: 2515-2459 ; EISSN: 2515-2467 ; Advances in Methods and Practices in Psychological Science ; https://hal-univ-rennes1.archives-ouvertes.fr/hal-02509817 ; Advances in Methods and Practices in Psychological Science, [Thousand Oaks]: [SAGE Publications], 2020, 3 (1), pp.24-52. ⟨10.1177/2515245919900809⟩ (2020)
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7
Nasal coda neutralization in Shanghai Mandarin: Articulatory and perceptual evidence
In: Laboratory Phonology: Journal of the Association for Laboratory Phonology; Vol 11, No 1 (2020); 23 ; 1868-6354 (2020)
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8
Exposure to a second language in infancy alters speech production
In: Biling (Camb Engl) (2020)
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9
Cue Integration and Contrast Shifts: Experimental and Typological Studies
Yang, Meng. - : eScholarship, University of California, 2019
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10
Cue-shifting between acoustic cues: Evidence for directional asymmetry
In: JOURNAL OF PHONETICS, vol 75 (2019)
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11
Phonetic Evidence for a Feed-�forward Model: Rounding and Center of Gravity of English [ʃ]
Zhou, Zhenglong. - : eScholarship, University of California, 2019
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12
Functional Load, Perception, and the Learning of Phonological Alternations
Lin, Isabelle. - : eScholarship, University of California, 2019
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13
Young infants’ discrimination of subtle phonetic contrasts
In: ISSN: 0010-0277 ; EISSN: 1873-7838 ; Cognition ; https://hal.archives-ouvertes.fr/hal-01841528 ; Cognition, Elsevier, 2018, 178, pp.57 - 66. ⟨10.1016/j.cognition.2018.05.009⟩ (2018)
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14
Why do children pay more attention to grammatical morphemes at the ends of sentences?
In: Journal of child language, vol 45, iss 3 (2018)
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15
Lexical stress constrains English-learning infants' segmentation in a non-native language.
Mateu, Victoria E; Sundara, Megha. - : eScholarship, University of California, 2018
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16
Young infants’ discrimination of subtle phonetic contrasts
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17
The perception of boundary tones in infancy
Sundara, Megha; Molnar, Monika; Frota, Sónia. - : International Phonetic Association, 2016
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18
Perceptual Similarity Modulates Context Effects in Online Compensation for Phonological Variation
In: Proceedings of the Annual Meetings on Phonology; Proceedings of the 2014 Annual Meeting on Phonology ; 2377-3324 (2016)
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19
Early word segmentation in infants acquiring Parisian French: task-dependent and dialect-specific aspects
In: ISSN: 0305-0009 ; EISSN: 1469-7602 ; Journal of Child Language ; https://hal.archives-ouvertes.fr/hal-03131303 ; Journal of Child Language, Cambridge University Press (CUP), 2014, 41 (3), pp.600-633. ⟨10.1017/S0305000913000111⟩ (2014)
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20
The role of modality and register in imitation by adults and children.
Ward, Nancy Ann. - : eScholarship, University of California, 2013
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