Classificação automática da doença de Alzheimer através de características extraídas de gravações de fala

Autores

  • Dieine Estela Bernieri Schiavon UFCSPA
  • Carla Diniz Lopes Becker UFCSPA

DOI:

https://doi.org/10.59681/2175-4411.v16.iEspecial.2024.1254

Palavras-chave:

Processamento de Fala, Aprendizagem Profunda, Doença de Alzheimer

Resumo

A doença de Alzheimer é uma patologia neurodegenerativa progressiva estando entre as formas mais comuns de demência em pessoas idosas. Alterações de memória são sintomas frequentes, e alterações de fala e linguagem podem ser sinais de declínio cognitivo. Os sistemas inteligentes têm potencial para uso como ferramentas de apoio ao diagnóstico. Objetivo: Propor um modelo de Rede Neural Convolucional para classificação da doença de Alzheimer utilizando características extraídas de gravações de fala. Método: Utilizamos segmentos de fala com e sem pausas de indivíduos saudáveis e com doença de Alzheimer para extrair características e reconhecer padrões em espectrogramas. Para o treinamento do modelo usamos validação cruzada estratificada de 5-folds. Resultados: Obtivemos métricas de acurácia, sensibilidade e especificidade de 97,37%, 97,04% e 97,62%, respectivamente. Conclusão: O modelo proposto apresentou resultados promissores podendo contribuir para o estudo de biomarcadores não invasivos, que detectem precocemente a doença de Alzheimer.

Biografia do Autor

Dieine Estela Bernieri Schiavon, UFCSPA

Master’s Student, Federal University of Health Sciences of Porto Alegre – UFCSPA, Porto Alegre (RS), Brazil.

Carla Diniz Lopes Becker, UFCSPA

Ph.D., Federal University of Health Sciences of Porto Alegre – UFCSPA, DECESA, Porto Alegre (RS), Brazil.

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Publicado

19-11-2024

Como Citar

Schiavon, D. E. B., & Becker, C. D. L. (2024). Classificação automática da doença de Alzheimer através de características extraídas de gravações de fala. Journal of Health Informatics, 16(Especial). https://doi.org/10.59681/2175-4411.v16.iEspecial.2024.1254

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