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Evaluation of recognition memory through oculomotorius behavior in Alzheimer disease.
Evaluación de la memoria de reconocimiento a través del comportamiento oculomotor en la enfermedad de Alzheimer
DOI:
https://doi.org/10.15446/rcp.v33n2.109519Keywords:
Memory, recognition, Alzheimer, Visual attention, Tracking (en)Downloads
INTRODUCTION: The study of ocular movements in patients with Alzheimer disease is an useful tool to evaluate recognition memory.
METHODS: assessment of this specific type of explicit memory in 15 individuals diagnosed with Alzheimer disease and 15 controls. The parameters of ocular fixation were examined using the Eye-Tracking Tobii Tx300 through Pair-wised ranking with the paradigm novel object recognition.
RESULTS: People with Alzheimer disease present difficulties in the recognition of previously presented stimulus when the latency of presentation of the familiarization and the test period is longer than two minutes.
DISCUSSION: The analysis of oculomotorius behavior can simplify the evaluation of recognition memory without appealing to verbal report and the visual paired comparison task. This contributes to the comprehension of the relationship among spatial attention, working memory and episodic memory.
Introducción. el estudio de los movimientos oculares en pacientes con enfermedad de Alzheimer es una herramienta útil para evaluar la memoria de reconocimiento.
Métodos. la evaluación de este tipo específico de memoria explícita en 15 individuos diagnosticados con la enfermedad
de Alzheimer y 15 controles. Se examinaron los parámetros de fijación ocular utilizando el Eye-Tracking Tobii Tx300
mediante clasificación por pares con el paradigma de reconocimiento de objetos novedosos.
Discusión. El análisis del comportamiento oculomotor puede simplificar la evaluación de la memoria de reconocimiento sin apelar al informe verbal y a la tarea de comparación visual por pares. Esto contribuye a la comprensión de la relación entre atención espacial, memoria de trabajo y memoria episódica.
Resultados. Las personas con enfermedad de Alzheimer presentan dificultades en el reconocimiento de estímulos
previamente presentados cuando la latencia de presentación de la familiarización y el período de prueba es superior a dos minutos.
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