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Discourse intervention strategies in Alzheimer's disease: Eye-tracking and the effect of visual cues in conversation

Intervenção discursiva na doença de Alzheimer: rastreio ocular e efeito de pistas visuais na conversação

Abstracts

OBJECTIVE:

The goal of this study was to investigate whether on-topic visual cues can serve as aids for the maintenance of discourse coherence and informativeness in autobiographical narratives of persons with Alzheimer's disease (AD).

METHODS:

The experiment consisted of three randomized conversation conditions: one without prompts, showing a blank computer screen; an on-topic condition, showing a picture and a sentence about the conversation; and an off-topic condition, showing a picture and a sentence which were unrelated to the conversation. Speech was recorded while visual attention was examined using eye tracking to measure how long participants looked at cues and the face of the listener.

RESULTS:

Results suggest that interventions using visual cues in the form of images and written information are useful to improve discourse informativeness in AD.

CONCLUSION:

This study demonstrated the potential of using images and short written messages as means of compensating for the cognitive deficits which underlie uninformative discourse in AD. Future studies should further investigate the efficacy of language interventions based in the use of these compensation strategies for AD patients and their family members and friends.

Alzheimer's disease; discourse; attention; visual cues


OBJETIVO:

O objetivo deste estudo foi o de investigar se pistas visuais sobre o tópico discursivo podem servir como auxiliares para a manutenção da coerência e da informatividade em narrativas autobiográficas de pessoas com doença de Alzheimer (DA).

MÉTODOS:

O experimento apresentou três condições: uma conversa tendo à vista uma tela de computador em branco; uma condição de conversação com pista dentro do tópico, em que a tela do computador mostrava uma foto e uma frase sobre o evento tema; e uma condição fora de tópico, em que a tela mostrava uma foto e uma frase que não apresentavam relação com o tema da conversa. O discurso foi gravado enquanto a atenção visual foi examinada através de rastreamento ocular para medir a atenção dos participantes para as pistas apresentadas na tela e para o rosto do ouvinte.

RESULTADOS:

Os resultados sugerem que as intervenções por meio de pistas visuais na forma de imagens e informações escritas são úteis para melhorar a informatividade discursiva na AD.

CONCLUSÃO:

Este estudo demonstrou o potencial do uso de imagens e mensagens escritas curtas como meios de compensação para aumentar a informatividade do discurso em pacientes com DA. Estudos futuros devem investigar a eficácia de intervenções de linguagem baseadas no uso dessas estratégias de compensação para a comunicação de pacientes com DA com seus familiares e amigos.

doença de Alzheimer; discurso; atenção; pistas visuais


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Publication Dates

  • Publication in this collection
    Sept 2014

History

  • Received
    09 May 2014
  • Accepted
    10 July 2014
Academia Brasileira de Neurologia, Departamento de Neurologia Cognitiva e Envelhecimento R. Vergueiro, 1353 sl.1404 - Ed. Top Towers Offices, Torre Norte, São Paulo, SP, Brazil, CEP 04101-000, Tel.: +55 11 5084-9463 | +55 11 5083-3876 - São Paulo - SP - Brazil
E-mail: revistadementia@abneuro.org.br | demneuropsy@uol.com.br