Do preschoolers born premature perform properly on lexical and verbal short-term memory abilities? / Pré-escolares nascidos prematuros apresentam desempenho adequado em vocabulário expressivo e memória de curto prazo verbal?

PURPOSE: To investigate lexical performance and verbal short-term memory ability in premature infants at preschool age and compare the results with their full-term peers. METHODS: Forty preschool children aged between 4 and 5 years and 11 months participated on the study and were equally divided into two groups considering their gestational age: preterm and full-term. Groups did not differ on age, family income and maternal education. Participants were paired according to their chronological age and their socioeconomic status. Their performance was assessed using expressive vocabulary and verbal short-term memory tests. Inferential statistical analysis was performed using the Mann-Whitney and the Fisher exact test. RESULTS: Group performance did not differ on vocabulary, but premature children showed an inferior performance on nonword repetition tasks. CONCLUSION: These data indicates that preschoolers born premature performed statistically lower than their peers born full-term on nonword repetition task. Thus, premature birth was associated to vocabulary development on typically developing range, but also to verbal short-term memory impairments.

OBJETIVO: Investigar o desempenho lexical e a habilidade de memória de curto prazo verbal em crianças prematuras em idade pré-escolar, e comparar os resultados com seus pares nascidos a termo. MÉTODO: Participaram do estudo 40 pré-escolares com idade entre 4 e 5 anos e 11 meses divididos em dois grupos, sendo 20 nascidos prematuros e 20 nascidos a termo. Os grupos não diferiram quanto à idade, renda familiar e escolaridade materna. Foram utilizados testes de vocabulário expressivo e memória de curto prazo verbal. A análise estatística inferencial foi realizada por meio dos testes de Mann-Whitney e exato de Fisher. RESULTADOS: O desempenho dos grupos não diferiu na tarefa de vocabulário, mas o grupo de prematuros apresentou desempenho inferior ao de seus pares na tarefa de repetição de não palavras. CONCLUSÃO: Nesta amostra, o desempenho dos pré-escolares que nasceram prematuros foi estatisticamente inferior ao daqueles nascidos a termo apenas na tarefa de repetição de não palavras. Assim, o nascimento prematuro esteve associado a desempenho no vocabulário expressivo compatível com o esperado para a idade, porém com prejuízos na memória de curto prazo verbal.

Nouns and verbs used by preschoolers with language impairment. / Uso de substantivos e verbos por pré-escolares com alteração específica de linguagem.

PURPOSE: To compare the functional use of verbs and nouns by Brazilian Portuguese-speaking children with language impairment (LI) and to verify whether their use of these word classes is different from that of children with typical language development (TLD). This study also aimed to compare the use of each verb type between groups. METHODS: Participants were 80 preschool children, 20 of them diagnosed with LI and 60 with TLD. The age ranges of participants were 3 to 6 years for children with LI and 2 to 4 years for children with TLD. Individuals were paired based on their expressive language age. Ludic interaction was used to elicit the speech sample from which nouns and verbs were selected from spontaneous speech. All nouns and verbs were tabulated and verbs were classified. RESULTS: Preschoolers with LI use verbs more often than nouns in their production of spontaneous speech. The use of nouns presented no difference between the groups, but verb use frequency was higher in children with LI for the 3-year-old subgroup. The verbs most frequently used by children with LI were copula, intransitive, and transitive direct. Comparison between the groups revealed few differences regarding the use of transitive direct, bitransitive, and copular verbs. Only transitive circumstantial verbs were more often used by children with TLD at all ages. CONCLUSION: The use of nouns and verbs by children with LI complies with the typical development standard, but it occurs more slowly. The use of verbs with fewer complements is predominant in these children.

Uso de substantivos e verbos por pré-escolares com alteração específica de linguagem / Nouns and verbs used by preschoolers with language impairment

RESUMO Objetivos Comparar o uso funcional de verbos e substantivos por crianças com alterações específicas de linguagem (AEL) falantes do Português Brasileiro e investigar se o uso destes tipos de palavras difere das crianças em desenvolvimento típico de linguagem (DTL). Além disso, comparar a utilização de cada tipo de verbo entre os grupos. Método Participaram do estudo 80 pré-escolares, 20 com AEL e 60 com DTL. A faixa etária dos sujeitos com AEL variou entre 3 e 6 anos, e do grupo com DTL variou entre 2 e 4 anos. O pareamento dos sujeitos foi baseado na idade linguística expressiva. A amostra de fala foi eliciada por meio de interação lúdica, e dessa amostra foram selecionados os substantivos e verbos produzidos. Resultados Os pré-escolares com AEL utilizaram mais verbos do que substantivos em fala espontânea. O uso de substantivos não diferiu entre os grupos, mas nos verbos o subgrupo de 3 anos com AEL os utilizou com mais frequência que seus pares. Os tipos de verbos mais utilizados por sujeitos com AEL foram de ligação, intransitivo e transitivo direto. A comparação entre os grupos neste aspecto diferiu pontualmente para os verbos transitivo direto, bitransitivo e de ligação; apenas o verbo transitivo circunstancial foi mais utilizado pelos sujeitos em DTL para todas as idades. Conclusão O uso de substantivos e verbos em crianças com AEL respeita o padrão do desenvolvimento típico, mas ocorre de forma mais lenta. O uso de verbos com menos complementos é predominante nesta população.

ABSTRACT Purpose To compare the functional use of verbs and nouns by Brazilian Portuguese-speaking children with language impairment (LI) and to verify whether their use of these word classes is different from that of children with typical language development (TLD). This study also aimed to compare the use of each verb type between groups. Methods Participants were 80 preschool children, 20 of them diagnosed with LI and 60 with TLD. The age ranges of participants were 3 to 6 years for children with LI and 2 to 4 years for children with TLD. Individuals were paired based on their expressive language age. Ludic interaction was used to elicit the speech sample from which nouns and verbs were selected from spontaneous speech. All nouns and verbs were tabulated and verbs were classified. Results Preschoolers with LI use verbs more often than nouns in their production of spontaneous speech. The use of nouns presented no difference between the groups, but verb use frequency was higher in children with LI for the 3-year-old subgroup. The verbs most frequently used by children with LI were copula, intransitive, and transitive direct. Comparison between the groups revealed few differences regarding the use of transitive direct, bitransitive, and copular verbs. Only transitive circumstantial verbs were more often used by children with TLD at all ages. Conclusion The use of nouns and verbs by children with LI complies with the typical development standard, but it occurs more slowly. The use of verbs with fewer complements is predominant in these children.