Rhetorical Relations in the Speech of Alzheimer’s Patients and Healthy Elderly Subjects: An Approach from the RST
Título del documento: Rhetorical Relations in the Speech of Alzheimer’s Patients and Healthy Elderly Subjects: An Approach from the RST
Revista: Computación y sistemas
Base de datos:
Número de sistema: 000560353
ISSN: 1405-5546
Autores: 1
1
2
3
1
Instituciones: 1Universidad Nacional Autónoma de México, Instituto de Ingeniería, México
2Université du Québec, Montreal. Canadá
3Universidad Nacional de Educación a Distancia, España
Año:
Periodo: Jul-Sep
Volumen: 22
Número: 3
Paginación: 895-905
País: México
Idioma: Inglés
Resumen en inglés The study is aimed to extract discourse relations patterns in conversational speech of subjects with Alzheimer’s Disease (AD) and adults with healthy aging processes using the Rhetorical Structure Theory (RST). By means of the RST, we analyzed semi-structured interviews of native Spanish speakers. Seven subjects were in the mild, moderate or advanced stages of AD, and 6 were cognitively intact individuals. The procedure involved the segmentation of each conversational discourse into Semantic Dialog Units (SDUs), the labeling of their rhetorical relations and the construction of tree diagrams. We perform a correlation analysis to determine the significance of the use of rhetorical relations for each group. We found a significantly (p-value <.05) lower rhetorical relations production density in subjects with AD. We also observed that most rhetorical relations used by healthy older subjects were Elaboration, Concession, Interpretation, Non-Volitional Cause, Solutionhood and Volitional Result.
Disciplinas: Ciencias de la computación
Palabras clave: Inteligencia artificial
Keyword: Rhetorical relations,
Conversation analysis,
Alzheimer’s disease,
Artificial intelligence
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