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Acceptance of lexical overlap by monolingual and bilingual toddlers
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Sensitivity to amplitude envelope rise time in infancy and vocabulary development at three years : a significant relationship
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Mothers speak differently to infants at-risk for dyslexia
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Abstract:
Dyslexia is a neurodevelopmental disorder manifested in deficits in reading and spelling skills that is consistently associated with difficulties in phonological processing. Dyslexia is genetically transmitted, but its manifestation in a particular individual is thought to depend on the interaction of epigenetic and environmental factors. We adopt a novel interactional perspective on early linguistic environment and dyslexia by simultaneously studying two pre-existing factors, one maternal and one infant, that may contribute to these interactions; and two behaviours, one maternal and one infant, to index the effect of these factors. The maternal factor is whether mothers are themselves dyslexic or not (with/without dyslexia) and the infant factor is whether infants are at-/not-at family risk for dyslexia (due to their mother or father being dyslexic). The maternal behaviour is mothers’ infant-directed speech (IDS), which typically involves vowel hyperarticulation, thought to benefit speech perception and language acquisition. The infant behaviour is auditory perception measured by infant sensitivity to amplitude envelope rise time, which has been found to be reduced in dyslexic children. Here, at-risk infants showed significantly poorer acoustic sensitivity than not-at-risk infants and mothers only hyperarticulated vowels to infants who were not at-risk for dyslexia. Mothers’ own dyslexia status had no effect on IDS quality. Parental speech input is thus affected by infant risk status, with likely consequences for later linguistic development.
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Keyword:
dyslexia; infants; language acquisition; XXXXXX - Unknown
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URL: https://doi.org/10.1111/desc.12487 http://handle.uws.edu.au:8081/1959.7/uws:37897
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Infant-directed speech facilitates seven-month-old infants' cortical tracking of speech
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Constraints on tone sensitivity in novel word learning by monolingual and bilingual infants : tone properties are more influential than tone familiarity
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The development of fast‐mapping and novel word retention strategies in monolingual and bilingual infants
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The origins of babytalk : smiling, teaching or social convergence?
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Is it a name or a fact? : disambiguation of reference via exclusivity and pragmatic reasoning
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OZI : Australian English communicative development inventory
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Novel word learning, reading difficulties, and phonological processing skills
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Mutual exclusivity develops as a consequence of abstract rather than particular vocabulary knowledge
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The effects of linguistic experience on the flexible use of mutual exclusivity in word learning
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