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Fernández RS, Bavassi L, Kaczer L, et al. Interference Conditions of the Reconsolidation Process in Humans: The Role of Valence and Different Memory Systems. Front Hum Neurosci. 2016;10:641doi: 10.3389/fnhum.2016.00641.
Fernández, R. S., Bavassi, L., Kaczer, L., Forcato, C., & Pedreira, M. E. (2016). Interference Conditions of the Reconsolidation Process in Humans: The Role of Valence and Different Memory Systems. Frontiers in human neuroscience, 10641. https://doi.org/10.3389/fnhum.2016.00641
Fernández, Rodrigo S, et al. "Interference Conditions of the Reconsolidation Process in Humans: The Role of Valence and Different Memory Systems." Frontiers in human neuroscience vol. 10 (2016): 641. doi: https://doi.org/10.3389/fnhum.2016.00641
Fernández RS, Bavassi L, Kaczer L, Forcato C, Pedreira ME. Interference Conditions of the Reconsolidation Process in Humans: The Role of Valence and Different Memory Systems. Front Hum Neurosci. 2016 Dec 20;10:641. doi: 10.3389/fnhum.2016.00641. eCollection 2016. PMID: 28066212; PMCID: PMC5167735.
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Front Hum Neurosci. 2016 Dec 20;10:641. doi: 10.3389/fnhum.2016.00641. eCollection 2016.

Interference Conditions of the Reconsolidation Process in Humans: The Role of Valence and Different Memory Systems.

Frontiers in human neuroscience

Rodrigo S Fernández, Luz Bavassi, Laura Kaczer, Cecilia Forcato, María E Pedreira

Affiliations

  1. Laboratorio de Neurobiología de la Memoria, Departamento de Fisiología y Biología Molecular y Celular, IFIBYNE-CONICET, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires Buenos Aires, Argentina.
  2. Laboratorio de Neurobiología de la Memoria, Departamento de Fisiología y Biología Molecular y Celular, IFIBYNE-CONICET, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos AiresBuenos Aires, Argentina; Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos AiresBuenos Aires, Argentina.

PMID: 28066212 PMCID: PMC5167735 DOI: 10.3389/fnhum.2016.00641

Abstract

Following the presentation of a reminder, consolidated memories become reactivated followed by a process of re-stabilization, which is referred to as reconsolidation. The most common behavioral tool used to reveal this process is interference produced by new learning shortly after memory reactivation. Memory interference is defined as a decrease in memory retrieval, the effect is generated when new information impairs an acquired memory. In general, the target memory and the interference task used are the same. Here we investigated how different memory systems and/or their valence could produce memory reconsolidation interference. We showed that a reactivated neutral declarative memory could be interfered by new learning of a different neutral declarative memory. Then, we revealed that an aversive implicit memory could be interfered by the presentation of a reminder followed by a threatening social event. Finally, we showed that the reconsolidation of a neutral declarative memory is unaffected by the acquisition of an aversive implicit memory and conversely, this memory remains intact when the neutral declarative memory is used as interference. These results suggest that the interference of memory reconsolidation is effective when two task rely on the same memory system or both evoke negative valence.

Keywords: boundary conditions; declarative memory; interference; pavlovian conditioning; reconsolidation; social threat

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