DEBORA MARIA BEFI LOPES
Projetos de Pesquisa
Unidades Organizacionais
Departamento de Fisioterapia, Fonoaudiologia e Terapia Ocupacional, Faculdade de Medicina - Docente
LIM/34 - Laboratório de Ciências da Reabilitação, Hospital das Clínicas, Faculdade de Medicina
LIM/34 - Laboratório de Ciências da Reabilitação, Hospital das Clínicas, Faculdade de Medicina
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- Aspectos da fluência da fala em crianças com distúrbio específico de linguagem(2014) ANDRADE, Cláudia Regina Furquim de; BEFI-LOPES, Debora Maria; JUSTE, Fabíola Staróbole; CÁCERES-ASSENÇO, Ana Manhani; FORTUNATO-TAVARES, Talita MariaPurpose The present study aimed to assess specific aspects of speech fluency in children with specific language impairment (SLI). This included examining the typology of speech disruption and rate (in words and syllables per minute), across different age groups. Methods A total of 50 children, aged 3 to 7 years old, presenting with nonverbal IQ and hearing thresholds within normal limits (without the presence of stuttering) participated in the study. Children were divided into two groups: G1 (SLI) included 25 children (7 girls and 18 boys) and G2 (typical development) included 25 children matched on age and gender with G1. Each child was shown a figure and asked to discuss what s/he liked about the figure. Each speech sample included 200 fluent syllables or 100 fluent words. Results Between-group analyses demonstrated that children aged 3 to 4 years old in G1 had lower speech rate than their age-matched peers from G2. Within-group analyses revealed no differences in disruption typologies between age groups in G1 participants. In contrast, hesitation was the most frequent typology for 4- to 5-year-old G2 children, whereas hesitation and word repetition typologies were observed in 6- to 7-year-old G2 children. Conclusion Children with suspected SLI between the ages of 3 to 4 years old showed a reduction in word and syllable production. Hesitation-type speech disruptions were prominently used by typically developing children, regardless of age, and were not observed in SLI children.
- Complexidade da história e pausas silentes em crianças com e sem distúrbio específico de linguagem(2013) BEFI-LOPES, Debora Maria; BACCHIN, Letícia Bondezan; PEDOTT, Paula Renata; CÁCERES-ASSENÇO, Ana ManhaniPURPOSE: To verify the average time of silent pauses in narratives and the influence of story's complexity in the occurrence of these pauses in narratives of children with typical language development and children with specific language impairment (SLI), and further to compare these aspects between groups. METHODS: Sixty children aged between seven to ten years took part in this research, being 40 typical language developing children and 20 with SLI. To collect data, each child produced 15 narratives, each one based on a four-scene-sequence. These narratives show increasing complexity of the relations between the characters, since absence of intentionality (mechanical and behavioral sequences) to relations between characters with mental states attribution (intentional sequences), which allowed the survey of the average time of silent pauses in the narratives produced. RESULTS: Story's complexity has influenced the average time of silent pauses in narratives of children with typical language development, however, for children with SLI this pattern was not observed. The comparison between groups indicates a significant difference in all types of narratives, with the highest average in the group with SLI. CONCLUSION: Due to their linguistic impairment, children with SLI had longer silent pauses in their narratives. Story's complexity has influenced the average time of silent pauses in narratives of children with typical language development, but this difference hasn't occurred in SLI children's narratives.
- A duração da pausa silente difere entre palavras de classe aberta ou fechada?(2014) PEDOTT, Paula Renata; BACCHIN, Letícia Bondezan; CÁCERES-ASSENÇO, Ana Manhani; BEFI-LOPES, Debora MariaPurpose: The study aim was to determine whether the mean duration of silent pauses depends on the word class (open or closed) and to compare the duration for each type of word between children with typical language development and children with specific language impairment (SLI). Methods: The study included 40 children with typical language development and 20 children with SLI, aged between 7 and 10 years. Each subject produced 15 story narratives based on a separate sequence of four pictures for each narrative. After the transcription of the samples, the words were classified as open class (noun, adjective, verb, adverb, and numeral) or closed class (article, preposition, pronoun, conjunction, and interjection). In the second phase of the study, the samples were analyzed using software specific to the analysis of silent pauses and the duration (milliseconds) of the pauses that occurred immediately before each of these grammatical categories was recorded. Results: In both groups, silent pauses were longer when preceding closed class words and individuals in the SLI group produced longer silent pauses than their peers did. Conclusion: The duration of a silent pause varied according to the grammatical class of the preceded word and it was shorter when followed by an open class word. In addition, the fact that individuals with SLI produce longer silent pauses than their peers confirms that their language processing is slower.
- Uso de substantivos e verbos por pré-escolares com alteração específica de linguagem(2016) VERRESCHI, Marianne Querido; CÁCERES-ASSENÇO, Ana Manhani; BEFI-LOPES, Debora MariaABSTRACT 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.
- Alteração fonológica e memória de curto prazo em escolares com distúrbio específico de linguagem(2014) CÁCERES-ASSENÇO, Ana Manhani; BRASIL, Priscilla Donaire; BEFI-LOPES, Debora MariaPurpose To characterize phonological impairment and short-term memory performance of school-aged children with specific language impairment (SLI) and investigate the possible correlations between these variables. Methods The group comprised 15 school-aged children of both genders (14 boys) with SLI, aged between 7 years and 12 years and 11 months. They were all undergoing speech therapy. To verify phonological impairment, the tasks of naming and imitation from the phonology test were used and based the calculus of percentage of correct consonants reviewed (PCC-r). Phonological short-term memory was assessed by the Test of Pseudoword Repetition. Results There was no difference in PCC-R accuracy between picture naming and word imitation tasks. Phonological short-term memory performance was better for pseudowords that showed greater similarity and had fewer syllables. A positive correlation was observed between phonology and phonological short-term memory; however, while phonological performance approached the maximum number of possible correct answers, the average short-term memory performance did not reach half of the possible correct answers. PCC-r mean correct answer was higher than 85%. Conclusion Phonological short-term memory performance of school-aged children with SLI differs according to word similarity and pseudoword extensions, since positive correlations between these variables were observed.
- Aplicação de uma prova brasileira de vocabulário expressivo em crianças falantes do Português Europeu(2018) CÁCERES-ASSENÇO, Ana Manhani; FERREIRA, Sandra Cristina Araújo; SANTOS, Anabela Cruz; BEFI-LOPES, Debora MariaABSTRACT Objective to investigate the performance of European Portuguese children in a Brazilian test of expressive vocabulary, seeking to identify differences between age groups and gender, and to verify its applicability in this population. Methods the sample consisted of 150 typical developed children, of both genders, between the ages of 5 and 6. All children attended public schools in the north area of Portugal. To assess the semantic performance, the expressive vocabulary sub-test of the language test (ABFW) was used, considering the percentage of usual verbal assignments and the classification (adequate/inadequate) according to the Brazilian reference values. Results the performance of the European Portuguese children indicated that at age 6 they have a higher percentage of correct answers in expressive vocabulary. As for the gender, there were only occasional differences: the girls showed a greater dominance in the semantic fields of clothing (both ages) and furniture and utensils (at age 5), whereas the boys showed more dominance in the semantic field means of transportation (6 years). Regarding classification, there was no difference between age groups in overall performance. Only the semantic field shapes and colors had more individuals of 6 years with inadequate performance. Conclusion the reference values adopted in the Brazilian population for semantic performance indicated that more than 80% of the children of each age group could have their performance classified as adequate. Such evidence suggests that this tool shows potential as an instrument of quantitative vocabulary’s assessment of 5 and 6-years old children in European Portuguese.
- School-age children with specific language impairment produce more speech disfluencies than their peers(2014) BEFI-LOPES, Debora Maria; CÁCERES-ASSENÇO, Ana Manhani; MARQUES, Suellen Fernanda; VIEIRA, MarcelyPURPOSE: To compare the occurrence of speech disfluencies during narrative production in children with specific language impairment (SLI) and their age-matched peers. METHODS: The study included 60 children aged between 7 and 10 years, 40 with typical language development and 20 with SLI. For data collection, a series of 15 stories was used, each one represented by pictures composed of four scenes. Narratives were transcripted and the speech disfluencies presented on them were classified as stuttering-like disfluencies (part-word repetition, single-syllable word repetition, and dysrhythmic phonation - prolongations, blocks and broken words) or other disfluencies (interjection, revision/abandoned utterances, and multisyllable/phrase repetition). The disfluency categories were compared in each group and its occurrence was also compared between groups. RESULTS: The occurrence of stuttering-like and other disfluencies did not differ among children with typical language development, whereas children with SLI produced other disfluencies. Between-group comparison showed that children with SLI produced more disfluencies of both types than their age-matched peers. CONCLUSION: Children with SLI showed more speech disfluencies during narrative production than their age-matched peers, and the most common disfluencies used by them were not typical of people who stutter (interjection, revision/abandoned utterances, and multisyllable/phrase repetition).
- Habilidades de aliteração e rima em crianças com distúrbio específico de linguagem(2017) PEDOTT, Paula Renata; CÁCERES-ASSENÇO, Ana Manhani; BEFI-LOPES, Debora MariaABSTRACT Purpose this study investigated and compared the performance of school-aged children with specific language impairment (SLI) and their peers typically developing language in alliteration and rhyme tests. The study also aimed to evaluate the influence of semantic and phonological distractors on both tests. Methods twelve school-aged children with SLI (study group - SG) and 48 peers typically developing language (control group - CG) aged 7 to 9 years. All of them were on 2nd or 3rd grade and presented hearing thresholds within normal limits and appropriate nonverbal intellectual performance. The experimental assessment consisted in alliteration and rhyme tests with semantic and/or phonological distractors. Results intragroup analysis showed that both groups presented lower performance in rhyme than alliteration activities (CG p<.001; SG p=.011). Intergroup analyses revealed that the SG had a poorer performance in both tasks in comparison to the CG (alliteration p=.001; rhyme p=.009). The error analysis pointed out that in alliteration, the SG opted more frequently for semantic (p=.004) and other distractors (p<.001) than the CG, whereas in rhyme tests, they opted more frequently for phonological (p=.048) and other distractors (p=.031). Conclusion the SG presented difficulty in alliteration and rhyme tasks, indicating poorer performance than their peers without language impairment. School-aged children with SLI attested that they analyze phonological awareness stimuli in a more general way, leading them to overlook relevant segmental aspects. These data reinforce the need for early intervention of these abilities in this population.