Cited by 986Memory and Neural MechanismsMemory Processes and InfluencesSpatial Cognition and Navigation

Spatial memory, recognition memory, and the hippocampus

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Broadbent, Nicola J., Squire, Larry R., Clark, Robert E.·2004·Proceedings of the National Academy of Sciences

Abstract

There is wide agreement that spatial memory is dependent on the integrity of the hippocampus, but the importance of the hippocampus for nonspatial tasks, including tasks of object recognition memory is not as clear. We examined the relationship between hippocampal lesion size and both spatial memory and object recognition memory in rats. Spatial memory was impaired after bilateral dorsal hippocampal lesions that encompassed 30-50% total volume, and as lesion size increased from 50% to approximately 100% of total hippocampal volume, performance was similarly impaired. In contrast, object recognition was intact after dorsal hippocampal lesions that damaged 50-75% of total hippocampal volume and was impaired only after larger lesions that encompassed 75-100% of hippocampal volume. Last, ventral hippocampal lesions that encompassed approximately 50% of total hippocampal volume impaired spatial memory but did not affect object recognition memory. These findings show that the hippocampus is important for both spatial memory and recognition memory. However, spatial memory performance requires more hippocampal tissue than does recognition memory.

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Cited by

Sorted by citations

Authors
Broadbent, N. J., Squire, L. R., & Clark, R. E.
Affiliations
University of California San Diego (US)
Corresponding author
Clark, Robert E.
Venue
Proceedings of the National Academy of Sciences
Published
2004-09-27
Volume
101
Issue
40
Pages
14515-14520
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2038813826
Cited by
985
References
37
Citations by year
2026: 25 · 2025: 26 · 2024: 35 · 2023: 40 · 2022: 59 · 2021: 51 · 2020: 55 · 2019: 53 · 2018: 56 · 2017: 57 · 2016: 51 · 2015: 51 · 2014: 52 · 2013: 48 · 2012: 63
FWCI
14.60
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Science Foundation
  • U.S. Department of Veterans Affairs
  • James S. McDonnell Foundation
  • National Alliance for Research on Schizophrenia and Depression
  • National Institute on Aging (P50AG005131, P50-AG05131)
  • National Institute of Mental Health (P50 AG05131, AG05131)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory Processes and Influences
  • Physical Sciences › Engineering › Automotive Engineering › Spatial Cognition and Navigation
Keywords
spatial memory, recognition memory, hippocampus, hippocampal lesions, lesion size, dorsal hippocampus, ventral hippocampus, object recognition, rats
MeSH terms
Animals, Hippocampus, Male, Memory, Spatial Behavior, Rats, Long-Evans, Recognition, Psychology, Rats

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