Memoria espacial a largo plazo en humanos entrenados en un laberinto virtual.

Resumen

En este estudio se evaluó la memoria espacial a largo plazo en humanos. Para ello, se empleó un diseño cuasiexperimental en el que se entrenó a tres grupos de estudiantes de pregrado en un laberinto virtual de agua para localizar una plataforma oculta cuya ubicación era señalada por un conjunto de claves. Se realizó un pretest sin plataforma antes del entrenamiento, e inmediatamente después se condujo un postest (Grupo 0 h), así como después de un intervalo de retención de dos días (Grupo 48 h) y siete días (Grupo 168 h). En el pretest no se encontró evidencia de preferencia por alguna zona del laberinto. A lo largo de los ensayos de entrenamiento, el tiempo para encontrar la meta disminuyó sin diferencias entre grupos. Durante el postest, todos los grupos mostraron una preferencia por el cuadrante reforzado, sin embargo, el tiempo de permanencia, la distancia de nado y la precisión de la conducta de búsqueda en dicha zona fue equivalente entre el Grupo 0 h y el Grupo 48 h, aunque mayor a la mostrada por el Grupo 168 h. Estos datos indican cambios ocurridos 48 h después de la adquisición en la memoria espacial a largo plazo en humanos. Se discuten los resultados a partir de procesos generales de memoria y procesos específicos propuestos por teorías particulares de memoria espacial; y al final se abordan las implicaciones clínicas y pertinentes al campo de la psicología comparada.

Palabras clave:

Retención Olvido espontáneo Memoria espacial Laberinto virtual de agua

Citas

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