On the Analysis of Speech and Disfluencies for Automatic Detection of Mild Cognitive Impairment
Fecha
2020-10Autor
López de Ipiña Peña, Miren Karmele
Martínez de Lizarduy Sturtze, Unai
Calvo Salomón, Pilar María
Beitia Bengoa, Blanca
García Melero, Joseba
Fernández Gómez de Segura, Elsa
Ecay Torres, Miriam
Faúndez Zanuy, Marcos
Sanz, P.
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Neural Computing and Applications 32(20) : 15761-15769 (2020)
Resumen
Alzheimer's disease is characterized by a progressive and irreversible cognitive deterioration. In a previous stage, the so-called Mild Cognitive Impairment or cognitive loss appears. Nevertheless, this previous stage does not seem sufficiently severe to interfere in independent abilities of daily life, so it is usually diagnosed inappropriately. Thus, its detection is a crucial challenge to be addressed by medical specialists. This paper presents a novel proposal for such early diagnosis based on automatic analysis of speech and disfluencies, and Deep Learning methodologies. The proposed tools could be useful for supporting Mild Cognitive Impairment diagnosis. The Deep Learning approach includes Convolutional Neural Networks and nonlinear multifeature modeling. Additionally, an automatic hybrid methodology is used in order to select the most relevant features by means of nonparametric Mann-Whitney U test and Support Vector Machine Attribute evaluation.