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1.
Rev. CEFAC ; 15(4): 815-826, jul.-ago. 2013. tab
Article in Portuguese | LILACS | ID: lil-686683

ABSTRACT

OBJETIVO: analisar o comportamento das variáveis Percurso das Rotas, Nível de Complexidade e Aquisição de fonemas, conforme a classificação da gravidade do Desvio Fonológico (DF) por meio do Modelo Linguístico Fuzzy (BRANCALIONI, 2010). Além disso, verificar se a classificação da gravidade, por meio do Modelo, é capaz de diferenciar quantitativamente os graus quanto às classes de sons e aos traços distintivos. MÉTODO: a amostra foi constituída pela avaliação fonológica pré-tratamento de 204 sujeitos com DF, de ambos os sexos e idade entre quatro anos e dois meses a oito anos e dois meses. Todos os sujeitos foram submetidos à avaliação fonológica, avaliação da linguagem compreensiva e expressiva, avaliação do sistema estomatognático, exame articulatório repetitivo e avaliação audiológica. Foram realizadas as análises contrastiva e por traços distintivos. A gravidade dos 204 sistemas fonológicos desviantes foi classificada de acordo com o Modelo. Os valores correspondentes as variáveis foram tabulados e submetidos a tratamento estatístico por meio dos testes Tukey e Associação Qui-Quadrado complementado pela Análise de Resíduos Ajustados, considerando nível de significância de 5% (p<0,05). RESULTADOS: verificou-se que as variáveis Percurso das Rotas, Nível de Complexidade e Aquisição de Fonemas diminuem conforme se acentua a gravidade, sendo estas relações estatisticamente significantes. Além disso, observou-se que o número de classe de som alterada e de substituições de traços distintivos aumenta conforme se acentua a gravidade, sendo estas relações estatisticamente significantes. CONCLUSÃO: o Modelo é capaz de diferenciar os graus quanto às variáveis, trazendo informações importantes de acordo com os diferentes graus.


PURPOSE: to analyze the behavior of the Path Course, Level of Complexity and acquisition of phonemes, according to the classification of severity of phonological disorders (PD) through the Linguistic Fuzzy Model (BRANCALIONI, 2010). Also, to verify if the classification of severity by means of the Model is able to differentiate quantitatively the degrees or classes of sounds and distinctive features. METHOD: the sample was made up of the phonological assessment pre-treatment with 204 DF subjects of both genders and aged between four years and two months old to eight years and two months old. All subjects were assessed for phonological evaluation of understanding and expressing language, evaluation of the stomatognathic system, repetitive articulatory examination and audiological assessment. Contrastive and distinctive features analyses were performed. The severity of 204 deviant phonological systems was classified according to the model. The corresponding values of the variables were tabulated and analyzed statistically by Tukey test and Qui-Square Association complemented by analysis of adjusted residuals, considering a significance level of 5% (p <0.05). RESULTS: it was verified that the variables of Path Course, Level of Complexity and Acquisition of Phonemes decrease as the severity increases; these relationships are statistically significant. In addition, it was observed that the number of altered sound class and distinctive substitutions sound increase according to the severity; these relationships are statistically significant. CONCLUSION: the model is able to differentiate the degrees according to the variables, bringing important information according to different degrees.

2.
Clin Linguist Phon ; 26(9): 774-90, 2012 Sep.
Article in English | MEDLINE | ID: mdl-22876768

ABSTRACT

The objective of this study is to create a new proposal for classifying the severity of speech disorders using a fuzzy model in accordance with a linguistic model that represents the speech acquisition of Brazilian Portuguese. The fuzzy linguistic model was run in the MATLAB software fuzzy toolbox from a set of fuzzy rules, and it encompassed three input variables: path routing, level of complexity and phoneme acquisition. The output was the Speech Disorder Severity Index, and it used the following fuzzy subsets: severe, moderate severe, mild moderate and mild. The proposal was used for 204 children with speech disorders who were monolingual speakers of Brazilian Portuguese. The fuzzy linguistic model provided the Speech Disorder Severity Index for all of the evaluated phonological systems in a fast and practical manner. It was then possible to classify the systems according to the severity of the speech disorder as severe, moderate severe, mild moderate and mild; the speech disorders could also be differentiated according to the severity index.


Subject(s)
Fuzzy Logic , Models, Biological , Severity of Illness Index , Speech Disorders/classification , Speech Disorders/physiopathology , Speech/physiology , Brazil , Child , Child Language , Child, Preschool , Female , Humans , Language Development , Male , Phonetics , Software Design
3.
Rev. CEFAC ; 14(3): 448-458, mayo-jun. 2012. graf, tab
Article in Portuguese | LILACS | ID: lil-640890

ABSTRACT

OBJETIVO: verificar se os critérios adotados no Modelo Linguístico Fuzzy, para classificar a gravidade do Desvio Fonológico (DF), são empregados na prática fonoaudiológica e se estão de acordo com a finalidade do Modelo. Além disso, analisar a concordância entre a gravidade do DF classificada pelo Modelo e a julgada por fonoaudiólogas, bem como, verificar as principais dificuldades. MÉTODO: a pesquisa foi constituída por duas amostras. A primeira composta por um número representativo de sistemas fonológicos desviantes (n=52) classificados pelo Modelo quando o mesmo foi proposto. A segunda por dois grupos de fonoaudiólogas GF-I e GF-II. Foi solicitado que as fonoaudiólogas julgassem a gravidade dos sistemas fonológicos desviantes, mapeados no Modelo Implicacional de Complexidade de Traços - MICT, em Grave, Moderado-Grave, Moderado-Leve e Leve. Em seguida os critérios e as principais dificuldades foram descritas em um questionário. Empregou-se a Estatística Kappa, com nível de significância de p<0,05. RESULTADOS: os critérios utilizados na proposta, em geral, foram utilizados pelo GF-I e julgados adequados pelo GF-II. Verificou-se concordância entre a classificação da gravidade obtida pelo Modelo com a julgada pelas fonoaudiólogas. Quanto às dificuldades, a frequentemente relatada foi diferenciar graus intermediários. CONCLUSÕES: os critérios utilizados no Modelo Linguístico Fuzzy são empregados para classificar a gravidade do DF quando realizada com base no MICT. Além disso, os critérios empregados estão de acordo, cumprindo com a finalidade do Modelo. Diante das dificuldades, outras formas de classificar a gravidade podem ser agregadas a fim de caracterizar o DF sobre outros aspectos importantes.


PURPOSE: to check if the criteria adopted from the Fuzzy Linguistic Model to classify the severity of Phonological Disorder (PD) are employed in the practice of speech and language therapists and whether they are in conformity with the purpose of such model. It is furthermore intended to analyze the acquiescence between PD severity classified by the Model and the one deemed by speech and language therapists and check the main difficulties. METHOD: the study included two samples. The first one was comprised of a representative number of deviating phonological systems (n=52) and classified by the Model when it was proposed. The second one comprised two groups of speech and language therapists GF-I and GF-II. The speech and language therapists were asked to deem the severity of deviating in phonological systems, mapped in the Implicational Model of Feature Complexity - MICT as Severe, Moderate-Severe, Moderate-Mild, and Mild. Next, criteria and main difficulties were described in a questionnaire. Kappa statistics was used, with a significance level of p<0.05. RESULTS: the criteria used in the proposal were generally used by GF-I and considered as adequate by GF-II. There was an acquiescence between classification of severity obtained by the Model and the one deemed by the speech and language therapists. The most frequently reported difficulty was distinguishing between intermediate degrees. CONCLUSIONS: the Fuzzy Linguistic Model criteria are used to classify PD severity when based on MICT. Furthermore, the criteria are in acquiescence with the purpose of the Model. Due to the difficulties, other forms of classifying severity can be added in order to characterize PD over other major aspects.

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