Cited by 691Memory and Neural MechanismsMemory Processes and InfluencesNeuroscience and Neuropharmacology Research

Recognition memory for objects, place, and temporal order: a disconnection analysis of the role of the medial prefrontal cortex and perirhinal cortex

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Barker, Gareth R. I., Bird, Flora, Alexander, Victoria, Warburton, E. Clea·2007·The Journal of Neuroscience

Abstract

Recognition memory requires judgments of the previous occurrence of stimuli made on the basis of the relative familiarity of individual objects, or by integrating information concerning objects and location, or by using recency information. The present study examined the role of the medial prefrontal cortex (mPFC) and perirhinal cortex (PRH) in these distinct recognition memory processes using a series of behavioral tests: a novel object preference task, an object-in-place task, and a temporal order memory task. Also, a disconnection procedure was used to test whether these regions form components of an integrated system for recognition memory. Male DA rats received bilateral lesions in the PRH or mPFC or unilateral lesions placed in both cortices in either the same (PRH-mPFC IPSI) or contralateral (PRH-mPFC CONTRA) hemispheres. A fifth group underwent sham surgery (SHAM). In the object-in-place and temporal order memory tasks, the PRH, mPFC, and PRH-mPFC CONTRA groups were significantly impaired. However, performance in the novel object preference task was only impaired in the PRH group. No group was impaired in the object location task. These results demonstrate that the mPFC and PRH are crucial for object-in-place associational and recency discriminations, whereas the PRH but not the mPFC is important for the discrimination of novel and familiar individual objects. Importantly, these results provide direct support for the hypothesis that to make discriminations based on associational or recency information, both cortical regions operate within an integrated neural network for recognition memory.

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Crossref · 10.1523/jneurosci.5289-06.2007

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  1. Swanson LW (1998) Brain maps: structure of the rat brain. Amsterdam: Elsevier.

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Authors
Barker, G. R. I., Bird, F., Alexander, V., & Warburton, E. C.
Affiliations
University of Bristol (GB)
Venue
The Journal of Neuroscience
Published
2007-03-14
Volume
27
Issue
11
Pages
2948-2957
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W2095056606
Cited by
691
References
48
Citations by year
2026: 27 · 2025: 35 · 2024: 50 · 2023: 45 · 2022: 43 · 2021: 45 · 2020: 40 · 2019: 34 · 2018: 45 · 2017: 55 · 2016: 39 · 2015: 41 · 2014: 33 · 2013: 38 · 2012: 32
FWCI
8.99
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuroscience (publishedVersion, cc-by-nc-sa)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Bristol Research (University of Bristol) (publishedVersion)
  • Explore Bristol Research (submittedVersion)
Funders
  • Directorate for Biological Sciences
  • Biotechnology and Biological Sciences Research Council (S18861)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory Processes and Influences
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
Keywords
recognition memory, medial prefrontal cortex, perirhinal cortex, object recognition, place recognition, temporal order memory, novel object preference, cortical disconnection, lesion studies, rats, neural integration
MeSH terms
Animals, Exploratory Behavior, Male, Memory, Time Factors, Prefrontal Cortex, Entorhinal Cortex, Recognition, Psychology, Rats

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