Enhancement of long-term memory expression by a single trial during consolidation

Before the memory trace is stored long term, it must undergo a phase of consolidation during which it remains susceptible to modifications. It has previously been proposed that during consolidation, memories are kept from being stored long term, and can therefore be modified with additional informat...

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Detalles Bibliográficos
Autores principales: Smal, L., Suárez, L.D., Delorenzi, A.
Formato: JOUR
Materias:
Consolidation
Memory
Memory enhancement
Memory update
Short-term memory
article
associative memory
controlled study
crab
long term memory
male
memory consolidation
nonhuman
priority journal
short term memory
training
Animals
Association Learning
Behavior, Animal
Brachyura
Conditioning, Classical
Male
Memory, Long-Term
Time Factors
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_03043940_v487_n1_p36_Smal
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_03043940_v487_n1_p36_Smal
record_format dspace
spelling todo:paper_03043940_v487_n1_p36_Smal2023-10-03T15:20:20Z Enhancement of long-term memory expression by a single trial during consolidation Smal, L. Suárez, L.D. Delorenzi, A. Consolidation Memory Memory enhancement Memory update Short-term memory article associative memory controlled study crab long term memory male memory consolidation nonhuman priority journal short term memory training Animals Association Learning Behavior, Animal Brachyura Conditioning, Classical Male Memory, Long-Term Time Factors Before the memory trace is stored long term, it must undergo a phase of consolidation during which it remains susceptible to modifications. It has previously been proposed that during consolidation, memories are kept from being stored long term, and can therefore be modified with additional information resulting from ongoing behavior. The Chasmagnathus associative memory model is used here to test whether it is possible during consolidation to modify the long-term expression of a memory generated by a weak training procedure. In this memory model, long-term memory expression is achieved after strong training protocols, a 15-spaced trial procedure. After a weak training protocol (WTP, six spaced trials), crabs do not show memory retention when tested in the long term. Nevertheless, the WTP builds a long-term memory that it is indeed consolidated, but remains unexpressed. Here we show that memory can be modified by experience during this short period after learning: memory expression can be enhanced by a Single Trial Session, on the condition that this session takes place contingent upon the consolidation period. We also found that during this time, the memory built by the WTP is behaviorally expressed, in contrast with what occurs at long term. Our results support the idea that during consolidation memories can be evaluated in the background of concurrent experiences. In particular, we propose that during the consolidation period it is possible for crabs to assess which experiences, among those stored long term, will be expressed long term. © 2010 Elsevier Ireland Ltd. Fil:Suárez, L.D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Delorenzi, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_03043940_v487_n1_p36_Smal
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Consolidation
Memory
Memory enhancement
Memory update
Short-term memory
article
associative memory
controlled study
crab
long term memory
male
memory consolidation
nonhuman
priority journal
short term memory
training
Animals
Association Learning
Behavior, Animal
Brachyura
Conditioning, Classical
Male
Memory, Long-Term
Time Factors
spellingShingle Consolidation
Memory
Memory enhancement
Memory update
Short-term memory
article
associative memory
controlled study
crab
long term memory
male
memory consolidation
nonhuman
priority journal
short term memory
training
Animals
Association Learning
Behavior, Animal
Brachyura
Conditioning, Classical
Male
Memory, Long-Term
Time Factors
Smal, L.
Suárez, L.D.
Delorenzi, A.
Enhancement of long-term memory expression by a single trial during consolidation
topic_facet Consolidation
Memory
Memory enhancement
Memory update
Short-term memory
article
associative memory
controlled study
crab
long term memory
male
memory consolidation
nonhuman
priority journal
short term memory
training
Animals
Association Learning
Behavior, Animal
Brachyura
Conditioning, Classical
Male
Memory, Long-Term
Time Factors
description Before the memory trace is stored long term, it must undergo a phase of consolidation during which it remains susceptible to modifications. It has previously been proposed that during consolidation, memories are kept from being stored long term, and can therefore be modified with additional information resulting from ongoing behavior. The Chasmagnathus associative memory model is used here to test whether it is possible during consolidation to modify the long-term expression of a memory generated by a weak training procedure. In this memory model, long-term memory expression is achieved after strong training protocols, a 15-spaced trial procedure. After a weak training protocol (WTP, six spaced trials), crabs do not show memory retention when tested in the long term. Nevertheless, the WTP builds a long-term memory that it is indeed consolidated, but remains unexpressed. Here we show that memory can be modified by experience during this short period after learning: memory expression can be enhanced by a Single Trial Session, on the condition that this session takes place contingent upon the consolidation period. We also found that during this time, the memory built by the WTP is behaviorally expressed, in contrast with what occurs at long term. Our results support the idea that during consolidation memories can be evaluated in the background of concurrent experiences. In particular, we propose that during the consolidation period it is possible for crabs to assess which experiences, among those stored long term, will be expressed long term. © 2010 Elsevier Ireland Ltd.
format JOUR
author Smal, L.
Suárez, L.D.
Delorenzi, A.
author_facet Smal, L.
Suárez, L.D.
Delorenzi, A.
author_sort Smal, L.
title Enhancement of long-term memory expression by a single trial during consolidation
title_short Enhancement of long-term memory expression by a single trial during consolidation
title_full Enhancement of long-term memory expression by a single trial during consolidation
title_fullStr Enhancement of long-term memory expression by a single trial during consolidation
title_full_unstemmed Enhancement of long-term memory expression by a single trial during consolidation
title_sort enhancement of long-term memory expression by a single trial during consolidation
url http://hdl.handle.net/20.500.12110/paper_03043940_v487_n1_p36_Smal
work_keys_str_mv AT small enhancementoflongtermmemoryexpressionbyasingletrialduringconsolidation
AT suarezld enhancementoflongtermmemoryexpressionbyasingletrialduringconsolidation
AT delorenzia enhancementoflongtermmemoryexpressionbyasingletrialduringconsolidation
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