Cited by 366Memory Processes and InfluencesMemory and Neural MechanismsCognitive Functions and Memory

Specifying the core network supporting episodic simulation and episodic memory by activation likelihood estimation

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Benoit, Roland G., Schacter, Daniel L.·2015·Neuropsychologia

Abstract

It has been suggested that the simulation of hypothetical episodes and the recollection of past episodes are supported by fundamentally the same set of brain regions. The present article specifies this core network via Activation Likelihood Estimation (ALE). Specifically, a first meta-analysis revealed joint engagement of expected core-network regions during episodic memory and episodic simulation. These include parts of the medial surface, the hippocampus and parahippocampal cortex within the medial temporal lobes, and the temporal and inferior posterior parietal cortices on the lateral surface. Both capacities also jointly recruited additional regions such as parts of the bilateral dorsolateral prefrontal cortex. All of these core regions overlapped with the default network. Moreover, it has further been suggested that episodic simulation may require a stronger engagement of some of the core network's nodes as well as the recruitment of additional brain regions supporting control functions. A second ALE meta-analysis indeed identified such regions that were consistently more strongly engaged during episodic simulation than episodic memory. These comprised the core-network clusters located in the left dorsolateral prefrontal cortex and posterior inferior parietal lobe and other structures distributed broadly across the default and fronto-parietal control networks. Together, the analyses determine the set of brain regions that allow us to experience past and hypothetical episodes, thus providing an important foundation for studying the regions' specialized contributions and interactions.

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Crossref · 10.1016/j.neuropsychologia.2015.06.034

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  • The ventromedial prefrontal cortex contributes to both accessing schematic knowledge used in episodic simulations and signaling their affective value.

    “These studies suggest that the vmPFC contributes to both accessing schematic knowledge used in episodic simulations as well signaling their affective value (see Box 2).”

    From Episodic Future Thinking: Mechanisms and Functions (2017) · cites this paper as [47]

    The Results identify vmPFC as part of the network engaged during episodic simulation, and the Discussion says mPFC may process a simulated event’s anticipated affective quality and integrate knowledge about its elements. The Discussion does not specifically assign those functions to vmPFC or describe the knowledge as schematic or being accessed. The indexed passages provide no page numbers. (LLM, conf=0.84)

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  • The core network strongly overlaps with the default network, which becomes maximally active during stimulus-free rest periods and is associated with spontaneous thought and imagery that often includes remembering the past and/or imagining the future.

    “This network strongly overlaps with the so-called “default network”, which becomes maximally active during stimulus-free rest periods and is associated with spontaneous thought and imagery that often includes remembering the past and/or imagining the future [8, 10–12].”

    From Constructive episodic simulation in dreams (2022) · cites this paper as [8]

    Split into 2 atoms — 1 confirmed, 1 partially supported, 0 disputed, 0 misattributed, 0 unverifiable. Expand the claim to see per-atom verdicts.

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  • A subset of default network regions called the core network is similarly engaged when people remember past experiences and imagine future experiences.

    “More specifically, a subset of default network regions referred to as the core network [22] is similarly engaged when people are asked to remember past experiences (i.e., episodic memory) and imagine future experiences (i.e., episodic simulation; for a recent meta-analysis, see [68]).”

    From Creative Cognition and Brain Network Dynamics (2016) · cites this paper as [68]

  • Core network regions including left posterior inferior parietal lobe and posterior dorsolateral prefrontal cortex, as well as several regions of a distinct fronto-parietal control network, show increased activity during episodic simulation compared with episodic memory.

    “core network regions including left posterior inferior parietal lobe and posterior dorsolateral prefrontal cortex show increased activity during episodic simulation compared with episodic memory, as do several regions that are part of a distinct fronto-parietal control network (47).”

    From Episodic Future Thinking: Mechanisms and Functions (2017) · cites this paper as [47]

  • The core/default network is jointly engaged during episodic simulation and episodic memory.

    “further that it is jointly engaged during episodic simulation and episodic memory (47).”

    From Episodic Future Thinking: Mechanisms and Functions (2017) · cites this paper as [47]

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  1. Nichols T Brett M Andersson J Wager T Poline JB 2005 Valid conjunction inference with the minimum statistic Neuroimage 25 653 660 15808966

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Authors
Benoit, R. G., & Schacter, D. L.
Affiliations
Harvard University (US)
Corresponding author
Benoit, Roland G.
Venue
Neuropsychologia
Publisher
Elsevier BV
Published
2015-08
Volume
75
Pages
450-457
ISSN
0028-3932 (ISSN-L)
OpenAlex
W2185722158
Cited by
366
References
82
Citations by year
2026: 27 · 2025: 29 · 2024: 40 · 2023: 38 · 2022: 32 · 2021: 44 · 2020: 35 · 2019: 36 · 2018: 32 · 2017: 30 · 2016: 15 · 2015: 8
FWCI
2.82
Type
journal article
Language
en
Open access
Locations
  • Neuropsychologia (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • Max Planck Digital Library (submittedVersion)
  • MPG.PuRe (Max Planck Society) (submittedVersion)
Funders
National Institute of Mental Health (R01MH60941)
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 simulation, episodic memory, core network, hippocampus, parahippocampal cortex, medial temporal lobe, dorsolateral prefrontal cortex, default mode network, frontoparietal network, recollection
MeSH terms
Aged, Brain, Humans, Imagination, Middle Aged, Neural Pathways, Mental Recall, Likelihood Functions, Memory, Episodic

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