Cited by 137Memory Processes and InfluencesOlfactory and Sensory Function StudiesMemory and Neural Mechanisms

A review on the neural bases of episodic odor memory: from laboratory-based to autobiographical approaches

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Saive, Anne-Lise, Royet, Jean-Pierre, Plailly, Jane·2014·Frontiers in Behavioral Neuroscience

Abstract

Odors are powerful cues that trigger episodic memories. However, in light of the amount of behavioral data describing the characteristics of episodic odor memory, the paucity of information available on the neural substrates of this function is startling. Furthermore, the diversity of experimental paradigms complicates the identification of a generic episodic odor memory network. We conduct a systematic review of the literature depicting the current state of the neural correlates of episodic odor memory in healthy humans by placing a focus on the experimental approaches. Functional neuroimaging data are introduced by a brief characterization of the memory processes investigated. We present and discuss laboratory-based approaches, such as odor recognition and odor associative memory, and autobiographical approaches, such as the evaluation of odor familiarity and odor-evoked autobiographical memory. We then suggest the development of new laboratory-ecological approaches allowing for the controlled encoding and retrieval of specific multidimensional events that could open up new prospects for the comprehension of episodic odor memory and its neural underpinnings. While large conceptual differences distinguish experimental approaches, the overview of the functional neuroimaging findings suggests relatively stable neural correlates of episodic odor memory.

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Crossref · 10.3389/fnbeh.2014.00240

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  • In young adults, perception of the childhood odorant leads to increased functional connectivity in the memory system, including dorsal hippocampus, prefrontal cortex, orbitofrontal cortex, and olfactory bulb.

    “the perception of the childhood odorant leads to an increased connectivity in the memory system, notably structures typically involved in autobiographical memory—the dorsal hippocampus, the prefrontal cortex—and olfactory memory—the orbitofrontal cortex and the olfactory bulb—both in humans and rodents [9,43,44].”

    From Positive early-life olfactory memory is rooted in the olfactory bulb and triggers large-scale changes beyond the olfactory system (2026) · cites this paper as [9]

    The Introduction (page unavailable) describes anatomical connections from the olfactory bulb to memory-related regions. The ‘Odor-evoked autobiographical memory’ section reports hippocampal involvement and greater orbitofrontal involvement during recall of early-life odor memories. But the paper does not report that perceiving a childhood odorant increases functional connectivity among the dorsal hippocampus, prefrontal cortex, orbitofrontal cortex, and olfactory bulb in young adults. Its functional-connectivity finding, in ‘Odor recognition memory,’ concerns a different set of regions during correct odor recognition. (LLM, conf=0.85)

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  1. Swets J. A. (1964). Signal Detection and Recognition by Human Observers. New York: Wiley

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Authors
Saive, A.-L., Royet, J.-P., & Plailly, J.
Affiliations
Lyon 1 Université (FR)
Corresponding author
Plailly, Jane
Venue
Frontiers in Behavioral Neuroscience
Published
2014-07-07
Volume
8
Pages
240-240
ISSN
1662-5153 (ISSN-L)
OpenAlex
W2070475925
Cited by
136
References
141
Citations by year
2026: 8 · 2025: 15 · 2024: 24 · 2023: 10 · 2022: 14 · 2021: 15 · 2020: 6 · 2019: 9 · 2018: 7 · 2017: 11 · 2016: 8 · 2015: 8 · 2014: 1
FWCI
0.90
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Frontiers in Behavioral Neuroscience (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • HAL (submittedVersion, other-oa)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Agence Nationale de la Recherche (ANR-11-IDEX-0007, ANR-11-IDEX, IDEX-0007)
  • Centre National de la Recherche Scientifique
  • Université de Lyon (ANR-11-IDEX-0 0 07)
  • CHIST-ERA
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory Processes and Influences
  • Life Sciences › Neuroscience › Sensory Systems › Olfactory and Sensory Function Studies
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
Keywords
neural correlates, odor recognition, odor familiarity, autobiographical memory, functional neuroimaging, memory encoding and retrieval

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