PreprintCited by 39Memory Processes and InfluencesMemory and Neural MechanismsCognitive Functions and Memory

Aging memories: Differential decay of episodic memory components

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Talamini, Lucia M., Gorree, Eva·2012·Learning & Memory

Abstract

Some memories about events can persist for decades, even a lifetime. However, recent memories incorporate rich sensory information, including knowledge on the spatial and temporal ordering of event features, while old memories typically lack this “filmic” quality. We suggest that this apparent change in the nature of memories may reflect a preferential loss of hippocampus-dependent, configurational information over more cortically based memory components, including memory for individual objects. The current study systematically tests this hypothesis, using a new paradigm that allows the contemporaneous assessment of memory for objects, object pairings, and object-position conjunctions. Retention of each memory component was tested, at multiple intervals, up to 3 mo following encoding. The three memory subtasks adopted the same retrieval paradigm and were matched for initial difficulty. Results show differential decay of the tested episodic memory components, whereby memory for configurational aspects of a scene (objects' co-occurrence and object position) decays faster than memory for featured objects. Interestingly, memory requiring a visually detailed object representation decays at a similar rate as global object recognition, arguing against interpretations based on task difficulty and against the notion that (visual) detail is forgotten preferentially. These findings show that memories undergo qualitative changes as they age. More specifically, event memories become less configurational over time, preferentially losing some of the higher order associations that are dependent on the hippocampus for initial fast encoding. Implications for theories of long-term memory are discussed.

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  • This pattern is typical of human episodic memory, with performance deteriorating with increases in the retention interval.

    “This pattern is typical of human episodic memory, both in real-life episodic remembering as well as that observed experimentally, with performance in tasks deteriorating with increases in the retention interval [149,150]”

    From Is episodic-like memory <i>like</i> episodic memory? (2024) · cites this paper as [149]

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Authors
Talamini, L. M., & Gorree, E.
Affiliations
University of Amsterdam (NL)
Venue
Learning & Memory
Published
2012-05-17
Volume
19
Issue
6
Pages
239-246
ISSN
  • 1072-0502 (ISSN-L)
  • 1549-5485
OpenAlex
W2115526882
Cited by
39
References
52
Citations by year
2026: 2 · 2025: 1 · 2024: 4 · 2023: 3 · 2022: 4 · 2021: 4 · 2020: 3 · 2019: 3 · 2017: 5 · 2016: 4 · 2015: 1 · 2014: 2 · 2013: 3
Type
posted content
Language
en
Open access
Locations
  • Learning & Memory (publishedVersion)
  • PubMed (publishedVersion)
  • UvA-DARE (University of Amsterdam) (publishedVersion)
  • Data Archiving and Networked Services (DANS) (submittedVersion)
Funders
  • National Science Foundation
  • Nederlandse Organisatie voor Wetenschappelijk Onderzoek
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory Processes and Influences
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Cognitive Functions and Memory
Keywords
episodic memory, memory decay, long-term memory, hippocampal-dependent memory, object recognition, event memory
MeSH terms
Adolescent, Adult, Aged, Aging, Analysis of Variance, Association Learning, Discrimination, Psychological, Female, Humans, Male, Memory Disorders, Middle Aged, Neuropsychological Tests, Photic Stimulation, Time Factors, Recognition, Psychology, Young Adult, Memory, Episodic

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