Size and composition of the lexicon in prematurely born very-low-birth-weight and full-term Finnish children at two years of age. 2007

Suvi Stolt, and Anu Klippi, and Kaisa Launonen, and Petriina Munck, and Liisa Lehtonen, and Helena Lapinleimu, and Leena Haataja, and
University of Helsinki and Turku University Central Hospital, Finland. suvi.stolt@helsinki.fi

This paper focuses on the aspects of the lexicon in 66 prematurely born very-low-birth-weight and 87 full-term Finnish children at 2;0, studied using the Finnish version of the MacArthur Communicative Developmental Inventory. The groups did not differ in vocabulary size. Furthermore, the female advantage in vocabulary size was not seen in preterm children. The overall shapes of the trajectories for the main lexical categories as a function of vocabulary size were highly similar in both groups and followed those described in the literature. However, there were significant differences in the percentage of nouns and grammatical function words between the two groups. The results suggest that prematurity 'cuts off' the female advantage in vocabulary development. Furthermore, it also seems that there are differences between prematurely born and full-term children in the composition of the lexicon at 2;0. The findings support the universal sequence in the development of lexical categories.

UI MeSH Term Description Entries
D007231 Infant, Newborn An infant during the first 28 days after birth. Neonate,Newborns,Infants, Newborn,Neonates,Newborn,Newborn Infant,Newborn Infants
D007234 Infant, Premature A human infant born before 37 weeks of GESTATION. Neonatal Prematurity,Premature Infants,Preterm Infants,Infant, Preterm,Infants, Premature,Infants, Preterm,Premature Infant,Prematurity, Neonatal,Preterm Infant
D007804 Language Development The gradual expansion in complexity and meaning of symbols and sounds as perceived and interpreted by the individual through a maturational and learning process. Stages in development include babbling, cooing, word imitation with cognition, and use of short sentences. Language Acquisition,Acquisition, Language,Development, Language
D008297 Male Males
D002663 Child Language The language and sounds expressed by a child at a particular maturational stage in development. Child Languages,Language, Child,Languages, Child
D002675 Child, Preschool A child between the ages of 2 and 5. Children, Preschool,Preschool Child,Preschool Children
D005260 Female Females
D005387 Finland A country in northern Europe, bordering the Baltic Sea, Gulf of Bothnia, and Gulf of Finland, between Sweden and Russia. The capital is Helsinki. Aland Islands,Ă…land Islands
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D014705 Verbal Behavior Includes both producing and responding to words, either written or spoken. Behavior, Verbal,Behaviors, Verbal,Verbal Behaviors

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