Cited by 64Memory Processes and InfluencesIdentity, Memory, and TherapyMemory and Neural Mechanisms

The experience of vivid autobiographical reminiscence is supported by subjective content representations in the precuneus

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Sreekumar, Vishnu, Nielson, Dylan M., Smith, Troy A., Dennis, Simon J., Sederberg, Per B.·2018·Scientific Reports

Abstract

The human posteromedial cortex, which includes core regions of the default mode network (DMN), is thought to play an important role in episodic memory. However, the nature and functional role of representations in these brain regions remain unspecified. Nine participants (all female) wore smartphone devices to record episodes from their daily lives for multiple weeks, each night indicating the personally-salient attributes of each episode. Participants then relived their experiences in an fMRI scanner cued by images from their own lives. Representational Similarity Analysis revealed a broad network, including parts of the DMN, that represented personal semantics during autobiographical reminiscence. Within this network, activity in the right precuneus reflected more detailed representations of subjective contents during vivid relative to non-vivid, recollection. Our results suggest a more specific mechanism underlying the phenomenology of vivid autobiographical reminiscence, supported by rich subjective content representations in the precuneus, a hub of the DMN previously implicated in metacognitive evaluations during memory retrieval.

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  • Functionality in brain areas involved in visual perception and visual imagery is linked to experienced vividness and visual perspective during episodic memory recall.

    “functionality in brain areas involved in visual perception [36,37] and visual imagery [38–41] have been linked to the experienced vividness and visual perspective during episodic memory recall [42].”

    From Is episodic-like memory <i>like</i> episodic memory? (2024) · cites this paper as [40]

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  1. [25]Rugg, M. D., Herron, J. E. & Morcom, A. M. Neuropsychology of memory (3rd ed.), chap. Electrophysiological studies of retrieval processing, 156–165 (Guilford Press, 2002).

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Authors
Sreekumar, V., Nielson, D. M., Smith, T. A., Dennis, S. J., & Sederberg, P. B.
Affiliations
  • National Institutes of Health (US)
  • University of North Georgia (US)
  • The University of Melbourne (AU)
  • University of Virginia (US)
Corresponding author
Sederberg, Per B.
Venue
Scientific Reports
Published
2018-10-08
Volume
8
Issue
1
Pages
14899-14899
ISSN
2045-2322 (ISSN-L)
OpenAlex
W2894864923
Cited by
64
References
87
Citations by year
2026: 5 · 2025: 9 · 2024: 9 · 2023: 7 · 2022: 10 · 2021: 13 · 2020: 7 · 2019: 3 · 2018: 1
FWCI
3.57
Type
journal article
Language
en
Open access
Locations
  • Scientific Reports (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, other-oa)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Minerva Access (University of Melbourne) (submittedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
Funders
  • DOD | Air Force Office of Scientific Research (FA9550-09-1-0614)
  • National Science Foundation (1631403)
  • Rudi Schulte Research Institute
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory Processes and Influences
  • Social Sciences › Psychology › Developmental and Educational Psychology › Identity, Memory, and Therapy
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
Keywords
autobiographical memory, vividness, precuneus, default mode network, episodic memory, recollection, phenomenology of memory, metacognition, representational similarity analysis
MeSH terms
Adult, Brain, Brain Mapping, Female, Humans, Magnetic Resonance Imaging, Neural Pathways, Parietal Lobe, Mental Recall, Semantics, Young Adult, Memory, Episodic

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