Exploring the role of context on the existing evidence for reconsolidation of episodic memory.

Ana M. Capelo, Pedro B. Albuquerque, Sara Cadavid

Resultado de la investigación: Contribución a RevistaArtículo

Resumen

Investigaciones recientes han proporcionado pruebas de modificaciones de la memoria cuando un tratamiento posterior a la reactivación (por ejemplo, fármacos, nuevo aprendizaje) interfiere con el proceso de reestabilización de la memoria (reconsolidación). Este hallazgo contradice la teoría de la consolidación de larga data y tiene altas implicaciones prácticas y teóricas. Con un paradigma de aprendizaje por objetos, se demostró que la memoria episódica es altamente susceptible a material interferente presentado después de su reactivación[Hupbach, A., Gomez, R., Hardt, O., & Nadel, L. (2007). Reconsolidación de recuerdos episódicos: Un sutil recordatorio desencadena la integración de nueva información. Learning & Memory, 14, 47-53. doi:10.1101/lm.365707]. La reactivación de una lista aprendida (Lista 1) antes de una segunda lista aprendida (Lista 2) llevó a errores de intrusión de la Lista 2 cuando se intentaba recuperar la Lista 1, pero no viceversa. Su trabajo ha sido ampliamente citado y sus hallazgos han sido explicados de acuerdo con la teoría de la reconsolidación. Por primera vez, exploramos sistemáticamente el papel del contexto de recuperación como una explicación alternativa para los resultados de Hupbach. Nuestros resultados mostraron que el efecto de intrusión ocurre independientemente del contexto de recuperación (Experimento 1). Además, incluso cuando la probabilidad de tasa de intrusión aumenta (es decir, la prueba de memoria de la Lista 1 se realiza en el contexto de aprendizaje de la Lista 2), los grupos que no reactivaron la lista original no cometieron errores de intrusión (Experimento 2). En resumen, encontramos que el efecto de la intrusión depende críticamente de la presencia de reactivación, descartando interpretaciones alternativas de los resultados.
Idioma originalEnglish (US)
Páginas (desde-hasta)280-294
Número de páginas15
PublicaciónMemory
Volumen27
N.º3
DOI
EstadoPublished - 2019

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Capelo, Ana M. ; Albuquerque, Pedro B. ; Cadavid, Sara. / Exploring the role of context on the existing evidence for reconsolidation of episodic memory. En: Memory. 2019 ; Vol. 27, N.º 3. pp. 280-294.
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title = "Exploring the role of context on the existing evidence for reconsolidation of episodic memory.",
abstract = "Recent research has provided evidence for memory modifications when a post-reactivation treatment (e.g., drugs, new learning) interferes with the memory re-stabilisation (reconsolidation) process. This finding contradicts the long-standing consolidation theory and has high practical and theoretical implications. With an object-learning paradigm, it was shown that episodic memory is highly susceptible to interfering material presented after its reactivation [Hupbach, A., Gomez, R., Hardt, O., & Nadel, L. (2007). Reconsolidation of episodic memories: A subtle reminder triggers integration of new information. Learning & Memory, 14, 47-53. doi:10.1101/lm.365707]. The reactivation of a learned list (List 1) before a second learned list (List 2) led to intrusion errors from List 2 when trying to recall List 1, but not vice-versa. Their work has been widely cited and their findings have been explained according to reconsolidation theory. For the first time, we systematically explored the role of retrieval context as an alternative explanation for Hupbach's results. Our results showed that the intrusion effect occurs independently of the retrieval context (Experiment 1). Additionally, even when the intrusion rate probability is increased (i.e., List 1 memory test is performed in the List 2 learning context), the groups that did not reactivate the original list did not commit intrusion errors (Experiment 2). In sum, we found that the intrusion effect critically depends on the presence of reactivation, discarding alternative interpretations of the results.",
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Exploring the role of context on the existing evidence for reconsolidation of episodic memory. / Capelo, Ana M.; Albuquerque, Pedro B.; Cadavid, Sara.

En: Memory, Vol. 27, N.º 3, 2019, p. 280-294.

Resultado de la investigación: Contribución a RevistaArtículo

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