Late bloomer or language disorder? Differences in toddler vocabulary composition associated with long‐term language outcomes.
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| Title: | Late bloomer or language disorder? Differences in toddler vocabulary composition associated with long‐term language outcomes. |
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| Authors: | Perry, Lynn K. (AUTHOR), Kucker, Sarah C. (AUTHOR), Horst, Jessica S. (AUTHOR), Samuelson, Larissa K. (AUTHOR) |
| Source: | Developmental Science. Jul2023, Vol. 26 Issue 4, p1-16. 16p. |
| Subjects: | Language disorders, Toddlers, Vocabulary, Dyslexia, Expressive language, Specific language impairment in children, Delayed diagnosis, Nouns |
| Abstract: | Children with delays in expressive language (late talkers) have heterogeneous developmental trajectories. Some are late bloomers who eventually "catch‐up," but others have persisting delays or are later diagnosed with developmental language disorder (DLD). Early in development it is unclear which children will belong to which group. We compare the toddler vocabulary composition of late talkers with different long‐term outcomes. The literature suggests most children with typical development (TD) have vocabularies dominated by names for categories organized by similarity in shape (e.g., cup), which supports a bias to attend to shape when generalizing names of novel nouns—a bias associated with accelerated vocabulary development. Previous work has shown that as a group, late talkers tend to say fewer names for categories organized by shape and are less likely to show a "shape bias" than TD children. Here, in a retrospective analysis of 850 children, we compared the vocabulary composition of groups of toddlers who were late bloomers or persisting late talkers. At Time 1 (13‐27 months), the persisting late talkers said a smaller proportion of shape‐based nouns than both TD children and late bloomers who "caught up" to typically sized vocabularies months later (18‐38‐months). Additionally, children who received a DLD diagnosis between 4 and 7 years said a significantly smaller proportion of shape‐based nouns in year two than TD children and children with other diagnoses (e.g., dyslexia). These findings bring new insight into sources of heterogeneity amongst late talkers and offer a new metric for assessing risk. Research Highlights: Toddler vocabulary composition, including the proportion of names for categories organized by shape, like spoon, was used to retrospectively compare outcomes of late talking childrenPersisting Late Talkers said a smaller proportion of shape‐based nouns during toddlerhood relative to Late Bloomers (late talkers who later caught up to have typically‐sized vocabularies)Children with later DLD diagnoses said a smaller proportion of shape‐based nouns during toddlerhood relative to children without a DLD diagnosisThe data illustrate the cascading effects of vocabulary composition on subsequent language development and suggest vocabulary composition may be one important marker of persisting delays [ABSTRACT FROM AUTHOR] |
| Copyright of Developmental Science is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Psychology and Behavioral Sciences Collection |
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| Header | DbId: pbh DbLabel: Psychology and Behavioral Sciences Collection An: 164480440 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Late bloomer or language disorder? Differences in toddler vocabulary composition associated with long‐term language outcomes. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Perry%2C+Lynn+K%2E%22">Perry, Lynn K.</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kucker%2C+Sarah+C%2E%22">Kucker, Sarah C.</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Horst%2C+Jessica+S%2E%22">Horst, Jessica S.</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Samuelson%2C+Larissa+K%2E%22">Samuelson, Larissa K.</searchLink> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Developmental+Science%22">Developmental Science</searchLink>. Jul2023, Vol. 26 Issue 4, p1-16. 16p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Language+disorders%22">Language disorders</searchLink><br /><searchLink fieldCode="DE" term="%22Toddlers%22">Toddlers</searchLink><br /><searchLink fieldCode="DE" term="%22Vocabulary%22">Vocabulary</searchLink><br /><searchLink fieldCode="DE" term="%22Dyslexia%22">Dyslexia</searchLink><br /><searchLink fieldCode="DE" term="%22Expressive+language%22">Expressive language</searchLink><br /><searchLink fieldCode="DE" term="%22Specific+language+impairment+in+children%22">Specific language impairment in children</searchLink><br /><searchLink fieldCode="DE" term="%22Delayed+diagnosis%22">Delayed diagnosis</searchLink><br /><searchLink fieldCode="DE" term="%22Nouns%22">Nouns</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Children with delays in expressive language (late talkers) have heterogeneous developmental trajectories. Some are late bloomers who eventually "catch‐up," but others have persisting delays or are later diagnosed with developmental language disorder (DLD). Early in development it is unclear which children will belong to which group. We compare the toddler vocabulary composition of late talkers with different long‐term outcomes. The literature suggests most children with typical development (TD) have vocabularies dominated by names for categories organized by similarity in shape (e.g., cup), which supports a bias to attend to shape when generalizing names of novel nouns—a bias associated with accelerated vocabulary development. Previous work has shown that as a group, late talkers tend to say fewer names for categories organized by shape and are less likely to show a "shape bias" than TD children. Here, in a retrospective analysis of 850 children, we compared the vocabulary composition of groups of toddlers who were late bloomers or persisting late talkers. At Time 1 (13‐27 months), the persisting late talkers said a smaller proportion of shape‐based nouns than both TD children and late bloomers who "caught up" to typically sized vocabularies months later (18‐38‐months). Additionally, children who received a DLD diagnosis between 4 and 7 years said a significantly smaller proportion of shape‐based nouns in year two than TD children and children with other diagnoses (e.g., dyslexia). These findings bring new insight into sources of heterogeneity amongst late talkers and offer a new metric for assessing risk. Research Highlights: Toddler vocabulary composition, including the proportion of names for categories organized by shape, like spoon, was used to retrospectively compare outcomes of late talking childrenPersisting Late Talkers said a smaller proportion of shape‐based nouns during toddlerhood relative to Late Bloomers (late talkers who later caught up to have typically‐sized vocabularies)Children with later DLD diagnoses said a smaller proportion of shape‐based nouns during toddlerhood relative to children without a DLD diagnosisThe data illustrate the cascading effects of vocabulary composition on subsequent language development and suggest vocabulary composition may be one important marker of persisting delays [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Developmental Science is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1111/desc.13342 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 16 StartPage: 1 Subjects: – SubjectFull: Language disorders Type: general – SubjectFull: Toddlers Type: general – SubjectFull: Vocabulary Type: general – SubjectFull: Dyslexia Type: general – SubjectFull: Expressive language Type: general – SubjectFull: Specific language impairment in children Type: general – SubjectFull: Delayed diagnosis Type: general – SubjectFull: Nouns Type: general Titles: – TitleFull: Late bloomer or language disorder? Differences in toddler vocabulary composition associated with long‐term language outcomes. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Perry, Lynn K. – PersonEntity: Name: NameFull: Kucker, Sarah C. – PersonEntity: Name: NameFull: Horst, Jessica S. – PersonEntity: Name: NameFull: Samuelson, Larissa K. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 07 Text: Jul2023 Type: published Y: 2023 Identifiers: – Type: issn-print Value: 1363755X Numbering: – Type: volume Value: 26 – Type: issue Value: 4 Titles: – TitleFull: Developmental Science Type: main |
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