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La estabilidad de la memoria recuperada: correlación inversa con el dominio del rastro
Mark Eisenberg1, Tali Kobilo, Diego E Berman
1Department of Neurobiology, Weizmann Institute of Science, Rehovot 76100, Israel.
Science (New York, N.Y.)
|August 23, 2003
Resumen
La reconsolidación de la memoria, donde los recuerdos recuperados pueden volverse inestables, está influenciada por la fuerza con que una memoria controla el comportamiento. Este hallazgo explica los resultados contradictorios en la investigación de la reconsolidación de la memoria.
Área de la Ciencia:
- La neurociencia es la neurociencia.
- Neurociencia del comportamiento neurológico.
- Investigación de la memoria Investigación de la memoria.
Sus antecedentes:
- La consolidación de la memoria estabiliza las huellas de la memoria, haciéndolas resistentes a la amnesia.
- La visión tradicional postula un único evento de consolidación por memoria.
- La evidencia emergente sugiere que los recuerdos recuperados pueden someterse a reconsolidación, pero los hallazgos son contradictorios.
Objetivo del estudio:
- Investigar los factores que influyen en la reconsolidación de la memoria.
- Para conciliar hallazgos contradictorios con respecto a la reconsolidación de los recuerdos recuperados.
- Explorar la relación entre la estabilidad de la memoria y el control del comportamiento.
Principales métodos:
- Aversión al gusto condicionada en ratas.
- Condicionamiento del miedo en los peces medaka.
- Evaluar la estabilidad de la memoria y el control del comportamiento después de la recuperación de la memoria.
Principales resultados:
- La estabilidad de la memoria después de la recuperación está inversamente correlacionada con el grado de control del comportamiento ejercido por esa memoria.
- Esta correlación inversa se observó tanto en la aversión al gusto condicionada como en los paradigmas de condicionamiento del miedo.
- Los hallazgos sugieren una interacción dinámica entre la fuerza de la memoria y su influencia en el comportamiento.
Conclusiones:
- El grado de control del comportamiento por una memoria recuperada influye en su estabilidad posterior.
- Esta relación puede explicar las discrepancias en estudios previos de reconsolidación.
- La reconsolidación de la memoria no es un proceso uniforme, sino que está modulada por el impacto funcional actual de la memoria.
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