Cited by 296Memory and Neural MechanismsNeural dynamics and brain functionMemory Processes and Influences

Frequency-specific network connectivity increases underlie accurate spatiotemporal memory retrieval

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Watrous, Andrew J, Tandon, Nitin, Conner, Chris R, Pieters, Thomas, Ekstrom, Arne D·2013·Nature Neuroscience

Abstract

The medial temporal lobes, prefrontal cortex and parts of parietal cortex form the neural underpinnings of episodic memory, which includes remembering both where and when an event occurred. However, the manner in which these three regions interact during retrieval of spatial and temporal context remains untested. We employed simultaneous electrocorticographical recordings across multilobular regions in patients undergoing seizure monitoring while they retrieved spatial and temporal context associated with an episode, and we used phase synchronization as a measure of network connectivity. Successful memory retrieval was characterized by greater global connectivity compared with incorrect retrieval, with the medial temporal lobe acting as a hub for these interactions. Spatial versus temporal context retrieval resulted in prominent differences in both the spectral and temporal patterns of network interactions. These results emphasize dynamic network interactions as being central to episodic memory retrieval, providing insight into how multiple contexts underlying a single event can be recreated in the same network.

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Authors
Watrous, A. J., Tandon, N., Conner, C. R., Pieters, T., & Ekstrom, A. D.
Affiliations
  • University of California, Davis (US)
  • Memorial Hermann (US)
  • The University of Texas Health Science Center at Houston (US)
Corresponding author
Ekstrom, Arne D
Venue
Nature Neuroscience
Published
2013-01-27
Volume
16
Issue
3
Pages
349-356
ISSN
  • 1097-6256 (ISSN-L)
  • 1546-1726
OpenAlex
W1982567191
Cited by
296
References
54
Citations by year
2026: 10 · 2025: 15 · 2024: 15 · 2023: 19 · 2022: 17 · 2021: 16 · 2020: 29 · 2019: 35 · 2018: 29 · 2017: 25 · 2016: 20 · 2015: 24 · 2014: 28 · 2013: 12 · 2012: 1
FWCI
15.36
Type
journal article
Language
en
Open access
Locations
  • Nature Neuroscience (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
Funders
National Institute of Neurological Disorders and Stroke (R01NS076856)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural dynamics and brain function
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory Processes and Influences
Keywords
episodic memory retrieval, spatiotemporal memory, network connectivity, oscillatory coupling, phase synchronization, medial temporal lobe, spatial memory, temporal memory, prefrontal cortex, parietal cortex, seizure monitoring, electrocorticography
MeSH terms
Adult, Brain, Brain Mapping, Epilepsy, Humans, Memory, Nerve Net, Neuropsychological Tests, Mental Recall, Space Perception, Functional Neuroimaging

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