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Cited by 135Memory and Neural MechanismsMemory Processes and InfluencesSpatial Cognition and Navigation

The DOI matches its Crossref record; 68 of the 70 references it cites were found in a registry or an index.

Dissociable networks involved in spatial and temporal order source retrieval

Ekstrom, Arne D., Copara, Milagros S., Isham, Eve A., Wang, Wei-chun, Yonelinas, Andrew P.·2011·NeuroImage
DOI 10.1016/j.neuroimage.2011.02.033
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Abstract

Space and time are important components of our episodic memories. Without this information, we cannot determine the "where and when" of our recent memories, rendering it difficult to disambiguate individual episodes from each other. The neural underpinnings of spatial and temporal order memory in humans remain unclear, in part because of difficulties in disentangling the contributions of these two types of source information. To address this issue, we conducted an experiment in which participants first navigated a virtual city, experiencing unique routes in a specific temporal order and learning about the spatial layout of the city. Spatial and temporal order information were dissociated in our task such that learning one type of information did not facilitate the other behaviorally. This allowed us to then address the extent to which the two types of information involved functionally distinct or overlapping brain areas. During functional magnetic resonance imaging (fMRI), participants retrieved information about the relative distance of stores within the city (spatial task) and the temporal order of stores from each other (temporal task). Comparable hippocampal activity was observed during these two tasks, but greater prefrontal activity was seen during temporal order retrieval whereas greater parahippocampal activity was seen during spatial retrieval. We suggest that while the brain possesses dissociable networks for maintaining and representing spatial layout and temporal order components of episodic memory, this information may converge into a common representation for source memory in areas such as the hippocampus.

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  1. Fried, 1998, The hippocampus and human navigation: technical comment, Science, 282

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Metadata

Authors
Ekstrom, A. D., Copara, M. S., Isham, E. A., Wang, W.-C., & Yonelinas, A. P.
Affiliations
University of California, Davis (US)
Corresponding author
Ekstrom, Arne D.
ORCID
Venue
NeuroImage
Publisher
Elsevier BV
Published
2011-06
Volume
56
Issue
3
Pages
1803-1813
ISSN
1053-8119 (ISSN-L)
DOI
10.1016/j.neuroimage.2011.02.033
OpenAlex
W2088806161
Cited by
135
References
70
Citations by year
2026: 3 · 2025: 2 · 2024: 5 · 2023: 3 · 2022: 4 · 2021: 8 · 2020: 3 · 2019: 9 · 2018: 10 · 2017: 33 · 2016: 9 · 2015: 19 · 2014: 13 · 2013: 9 · 2012: 5
FWCI
4.33
Type
journal article
Language
en
Open access
closed
Licence
www.elsevier.com/tdm/userlicense/1.0/ (tdm)
Locations
  • NeuroImage (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory Processes and Influences
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Spatial Cognition and Navigation
Keywords
temporal order memory, episodic memory, source memory, hippocampus, prefrontal cortex, parahippocampal cortex, memory retrieval, spatial configuration
MeSH terms
Adult, Computer Graphics, Computer Simulation, Female, Hippocampus, Humans, Image Processing, Computer-Assisted, Magnetic Resonance Imaging, Male, Monte Carlo Method, Nerve Net, Photic Stimulation, Psychomotor Performance, Mental Recall, Space Perception, Time Perception, Cluster Analysis, Young Adult

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