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Case Report

Adapting a computer-assisted program to help a post-coma man with extensive multiple disabilities choose stimulus events

, , , , , & show all
Pages 433-439 | Received 26 Aug 2010, Accepted 30 Aug 2010, Published online: 31 Oct 2010
 

Abstract

Objective: To adapt an existing computer-assisted program to help a post-coma man with extensive multiple disabilities choose between stimulus events.

Method: An adapted version of the program assessed in this study presented the man with 7-second samples of preferred and non-preferred stimuli, without questions, and allowed him to choose any of them through a vocalization response. The man's use of this response to choose a stimulus sample led the computer to present the matching stimulus for 20 seconds. The same response used immediately after the end of the 20-second stimulus presentation led to the repetition of that presentation.

Results: The adapted program version was effective in promoting high levels of choice among preferred stimuli and virtually no responding in relation to non-preferred stimuli. Indices of happiness were frequent during the program sessions.

Conclusions: Computer-assisted programs for stimulus choice might be successfully adapted to post-coma persons with extensive disabilities.

Objetivo: Adaptar un programa asistido por computadora pre-existente para ayudar a un hombre en estado de post-coma con discapacidad múltiple grave a elegir entre estímulos.

Método: Una versión adaptada del programa evaluado en este estudio presentaba al hombre con muestras de 7 segundos de estímulos preferidos y no preferidos, sin preguntas, y que le permitía elegir entre cualquiera de ellos a través de una respuesta verbal. El uso de esta respuesta por parte del hombre para seleccionar una muestra de estímulo llevó a que el equipo presentara dicho estímulo durante 20 segundos.

Resultados: La versión adaptada del programa fue efectiva en la promoción de altos niveles de elección entre los estímulos preferidos y virtualmente sin respuesta a estímulos no preferidos. Los indicadores de felicidad fueron frecuentes durante las sesiones del programa.

Conclusiones: Los programas asistidos por computadora para elección de estímulos pueden ser exitosamente adaptados a personas en estado de post-coma con graves discapacidades.

Palabras clave: microinterruptores, tecnología informática, post-coma, estado de mínima conciencia, ceguera, discapacidad múltiple

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