Debora Maria Befi-Lopes
University of São Paulo
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Featured researches published by Debora Maria Befi-Lopes.
Pró-Fono Revista de Atualização Científica | 2008
Elisabete Giusti; Debora Maria Befi-Lopes
BACKGROUND: translation and cross-cultural adaptation of instruments to the Brazilian Portuguese language. AIM: in Brazil, in the area of Speech-Language Pathology, there is a significant lack of commercially available formal and objective instruments that have as a purpose the evaluation and diagnosis of different communication disorders. Some researchers have tried to ease this problem by translating instruments available in other languages. Such procedure also contributes to the development of cross-cultural studies, which can bring knowledge about the communication disorders and their specificities in different languages. The aim of the present study is to discuss the procedures that should be adopted in this process. CONCLUSION: it is fundamental to adopt appropriate methodological procedures when translating and adapting foreign assessment instruments.
Revista Cefac | 2007
Debora Maria Befi-Lopes; Ana Manhani Cáceres; Karina de Araújo
PURPOSE: to quantitatively analyze the relationship between the spontaneous use of nouns and verbs by preschool children with normal language development, as well as to analyze the classification of the verbs used on the same speech sample. METHODS: speech samples of sixty preschoolers were gathered in educational context through playful interaction. For data analysis the children were divided into three groups, paired by gender and age: GI (between 2:0 and 2:11 years), GII (between 3:0 and 3:11 years) and GIII (between 4:0 and 4:11 years). RESULTS: data analysis showed that the use of verbs prevailed in all age groups, with no difference between genders. Regarding types of verbs, both genders had similar performance: intransitive verbs were more frequent, followed by copula in GI and GII and direct transitive verbs in GIII. CONCLUSION: the results showed that the preschoolers studied used more verbs than nouns since their second year of life. Intransitive verbs were the most frequently observed in all age ranges, followed by copula for two- and three-year-olds and by direct transitive verbs for four-year-olds. Finally, no significant differences were found between genders for any of the aspects studied.
Pró-Fono Revista de Atualização Científica | 2009
Amalia Rodrigues; Debora Maria Befi-Lopes
BACKGROUND Phonological working memory and typical language development in children. AIM To describe and discuss findings of researches concerning the assessment of phonological working memory in normally developing children undertaken since the 1980s. AIM To present a systematic literature review regarding the phonological working memory and its relationship with normal language development. METHOD A systematic review of the literature on phonological working memory and its relationship with language development skills of normal children was made. The used material involved books, monographs, thesis, dissertations and articles stored in Lilacs, Pubmed, Scielo and Medline databases. An analysis was made considering the applied tests and the results regarding the effects of extension and age and the relationship of these variables with phonological working memory for speakers of English and the Brazilian Portuguese language. CONCLUSION According to the consulted literature, studies indicate a relationship between the phonological and lexical knowledge and the phonological working memory in children with normal language development.
Pró-Fono Revista de Atualização Científica | 2009
Talita Fortunato-Tavares; Caroline Nunes Rocha; Claudia Regina Furquim de Andrade; Debora Maria Befi-Lopes; Eliane Schochat; Arild Hestvik; Richard G. Schwartz
BACKGROUND: several studies suggest the association of specific language impairment (SLI) to deficits in auditory processing.It has been evidenced that children with SLI present deficit in brief stimuli discrimination. Such deficit would lead to difficulties in developing phonological abilities necessary to map phonemes and to effectively and automatically code and decode words and sentences. However, the correlation between temporal processing (TP) and specific deficits in language disorders - such as syntactic comprehension abilities - has received little or no attention. AIM: to analyze the correlation between: TP (through the Frequency Pattern Test - FPT) and Syntactic Complexity Comprehension (through a Sentence Comprehension Task). METHOD: Sixteen children with typical language development (8;9 ± 1;1 years) and seven children with SLI (8;1 ± 1;2 years) participated on the study. RESULTS: Accuracy of both groups decreased with the increase on syntactic complexity (both p < 0.01). On the between groups comparison, performance difference on the Test of Syntactic Complexity Comprehension (TSCC) was statistically significant (p = 0.02).As expected, children with SLI presented FPT performance outside reference values. On the SLI group, correlations between TSCC and FPT were positive and higher for high syntactic complexity (r = 0.97) than for low syntactic complexity (r = 0.51). CONCLUSION: Results suggest that FPT is positively correlated to syntactic complexity comprehension abilities.The low performance on FPT could serve as an additional indicator of deficits in complex linguistic processing. Future studies should consider, besides the increase of the sample, longitudinal studies that investigate the effect of frequency pattern auditory training on performance in high syntactic complexity comprehension tasks.
Pró-Fono Revista de Atualização Científica | 2006
Lidiane Cristina Rocha; Debora Maria Befi-Lopes
BACKGROUND children start to differentiate questions from non-questions and also start to adjust their answers at the age of two. This participation in verbal exchanges requires basic conversational abilities such as the competence to initiate interact and reply appropriately, and to maintain the interaction. AIM to analyze and correlate the pragmatic aspects of language, related to the type of answers, during an adult/child interaction in children with normal language development and in those diagnosed with Specific Language Impairment (SLI). METHOD 16 children with SLI (GP) and ages between three and six years, and 60 children with normal language development (GC) and ages between three to five years - 20 for each age group, 10 of each gender. Data gathering occurred in two different days, with the adult/child interaction being facilitated by toys. Data (speech of child and adult) were transcribed and analyzed, obtaining a Reliability Index of 93.75%, and later were submitted to statistical analyses. RESULTS answers were classified in categories and grouped according to the following: Adequate Answers (RA) and Inadequate Answers (RI), always in accordance to the established communicative context. GC presented a significantly higher average of RA when compared to GP, and GP presented a significantly higher average of RI when compared to GC. GC presented a decrease in the use of RI at the increase of age. GP maintained the use of RI at the increase of age, including the age group of six. CONCLUSION it was observed that the increase in age emphasized differences between GP and GC. GP presented a less effective communication maintaining unintelligible speech, whereas GC presented more elaborate communication abilities. More studies with older children are necessary for the better understanding of the observed trends.
Revista Da Sociedade Brasileira De Fonoaudiologia | 2010
Juliana Perina Gândara; Debora Maria Befi-Lopes
The aim of the present study was to describe the similarities and differences found throughout lexical acquisition between normally developing children and children with developmental language disorder through an extensive literature review. The search was carried out in the databases SciELO, Lilacs, PubMed, Web of Science and Dedalus, and covered the last decades of studies in the area. The selected studies, of observational or experimental nature, showed great variability of findings related to vocabulary development, describing tendencies and variations, and also other abilities enrolled in the lexical acquisition process. Generally, the results suggest that the lexical difficulties that constitute one of the first alterations observed in children with developmental language disorder are justified by difficulties in abilities and/or characteristics influenced or directly related to mechanisms involved in information processing, which compromise the quality and the retrieval of phonological and semantic representations corresponding to a new lexical item. However, many studies suggest that ostensive situations and great contextual support emphasizing few novel words facilitate the lexical acquisition of children with developmental language disorder.
Frontiers in Psychology | 2014
Pascale Engel de Abreu; Neander Abreu; C Nikaedo; Marina Leite Puglisi; Carlos J. Tourinho; Mônica C. Miranda; Debora Maria Befi-Lopes; Orlando F.A. Bueno; Romain Martin
This study examined executive functioning and reading achievement in 106 6- to 8-year-old Brazilian children from a range of social backgrounds of whom approximately half lived below the poverty line. A particular focus was to explore the executive function profile of children whose classroom reading performance was judged below standard by their teachers and who were matched to controls on chronological age, sex, school type (private or public), domicile (Salvador/BA or São Paulo/SP) and socioeconomic status. Children completed a battery of 12 executive function tasks that were conceptual tapping cognitive flexibility, working memory, inhibition and selective attention. Each executive function domain was assessed by several tasks. Principal component analysis extracted four factors that were labeled “Working Memory/Cognitive Flexibility,” “Interference Suppression,” “Selective Attention,” and “Response Inhibition.” Individual differences in executive functioning components made differential contributions to early reading achievement. The Working Memory/Cognitive Flexibility factor emerged as the best predictor of reading. Group comparisons on computed factor scores showed that struggling readers displayed limitations in Working Memory/Cognitive Flexibility, but not in other executive function components, compared to more skilled readers. These results validate the account that working memory capacity provides a crucial building block for the development of early literacy skills and extends it to a population of early readers of Portuguese from Brazil. The study suggests that deficits in working memory/cognitive flexibility might represent one contributing factor to reading difficulties in early readers. This might have important implications for how educators might intervene with children at risk of academic under achievement.
Revista Da Sociedade Brasileira De Fonoaudiologia | 2010
Debora Maria Befi-Lopes; Silmara Rondon
PURPOSE: To verify the phonological performance of preschoolers with Specific Language Impairment (SLI) in spontaneous speech. METHODS: The subjects were 27 children with SLI with ages between three years and five years and 11 months, who attended Speech-Language Pathology therapy. The subjects who carried out at least 50% of the phonological assessment or who had speech intelligibility that allowed analysis were selected. Speech samples were obtained from a pragmatics evaluation and from elicited discourse. Analyses considered the use of developmental (DP) and idiossyncratic phonological processes (IP) in spontaneous speech. RESULTS: The descriptive statistics (mean DP and IP) showed large within-group variability. There was no variation in the number of processes according to age (DP: p=0.38; IP: p=0.72), but there was a prevalence of DP in all ages, in both tests (Z=-6.327; p<0.001). The occurrence of DP and IP was higher in the pragmatics evaluation (p<0.001), situation in which the number of words produced was also greater (T-value=8.93; p=0.000). CONCLUSION: The great within-group variability confirms the heterogeneity of SLI. The speech unintelligibility, which hampers the assessment of the expressive language of these subjects, can be attributed to the co-occurrence of DP and IP. Moreover, the interaction during the pragmatics evaluation was more effective for obtaining a sample of spontaneous speech for phonological analysis, and confirms the existence of major difficulties related to the development of ideas and their expression in subjects with SLI.
Pró-Fono Revista de Atualização Científica | 2010
Debora Maria Befi-Lopes; Ana Carulina Spinardi Pereira; Ana Carolina Paiva Bento
BACKGROUND children with Specific Language Impairment (SLI) have difficulties with speech processing. These difficulties affect the development of phonologic representations. AIM to evaluate the abilities of children with normal language development (NLD) and those with SLI in distinguishing words from non-words in a lexical decision task. METHOD two groups were involved in this study: the Control Group (GC), with no language disorders, composed by 36 subjects, and the Research Group (RG), with 18 subjects, all diagnosed with SLI, aging form 4 to 8:9 years. Children from both groups were arranged in three subgroups, according to the receptive vocabulary. Forty eight three syllable words were selected, being 24 real words and 24 that were manipulated in order to obtain non-words. Three variables were considered: (a) modification extension, (b) modification positioning and (c) modification type. Children had to decide whether a phonological sequence consisted of a word or a non-word. RESULTS even though children were matched by lexical age, there were differences between GC and RG. The RG presented more difficulty in lexical decision, not only for words but also for non-words. Both groups, with lexical age of 4 years, struggled more in this task when compared with groups with lexical age of 5 and 6 years. CONCLUSION children with SLI presented deficit in phonological representation when compared with children with NLD. This difference in performance can be explained by differences in the formation and retention of working memory representations, auditory discrimination and motor planning and execution.
Pró-Fono Revista de Atualização Científica | 2010
Debora Maria Befi-Lopes; Ana Manhani Cáceres
BACKGROUND verb acquisition. AIM to verify quantitative and qualitative verb diversity in the spontaneous speech of Brazilian Portuguese-speaking preschoolers and verb acquisition from 2 to 4 years of age. METHOD participants were sixty preschoolers equally matched on gender and age, divided into three groups: GI (2-year-old children), GII (3-year-old children) and GIII (4-year-old children). Spontaneous speech samples obtained through playing interactions, in educational contexts, were collected, and verb productions were listed. RESULTS children used 167 different verbs. The quantitative analysis indicated significant statistical differences between all groups (p< .001), with gradual increase of verb usage from 2 to 4 years of age. However, no statistical difference (p= .956) was observed between genders. CONCLUSION preschoolers improved their use of verbs during the initial stages of language acquisition, irrespective of their gender.