Cited by 86Memory and Neural MechanismsNeural and Behavioral Psychology StudiesNeuroscience and Neuropharmacology Research

Lesion of the ventral and intermediate hippocampus abolishes anticipatory activity in the medial prefrontal cortex of the rat

Burton, Brian G., Hok, Vincent, Save, Etienne, Poucet, Bruno·2009·Behavioural Brain Research

Abstract

The medial prefrontal cortex (mPFC) of the rat receives a prominent input from the ventral two thirds of the hippocampus, a structure important for spatial awareness, working memory and motivation. We recently found [Hok V, Lenck-Santini PP, Roux S, Save E, Muller RU, Poucet B. Goal-related activity in hippocampal place cells. J Neurosci 2007;27:472-82.] that neurones in the dorsal hippocampus exhibit anticipatory firing prior to the release of a food pellet on an operant task. Here we look for similar activity in the mPFC on the same task and test whether this activity is dependent on the hippocampus. Rats were trained to navigate to a goal zone, wait for the release of a food pellet and then forage for the pellet while unit activity was recorded in the prelimbic and infralimbic areas of the mPFC. Two 16 min sessions were conducted per day, one session with the goal delimited by a cue disc, the second without the cue. In controls, a large proportion of mPFC neurones exhibited activity similar to that seen in the hippocampus while the animal was stationary at the goal. Over half exhibited the same activity regardless of goal location. Anticipatory activity was largely abolished in animals with bilateral lesions of the ventral and intermediate hippocampus, both in cued and uncued sessions. Even though lesioned animals continued to perform the task, they tended to leave the goal zone prematurely. We suggest that the anticipatory activity in the mPFC is dependent on similar activity in the hippocampus and that both structures have a role in either impulse control or reward expectation.

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Crossref · 10.1016/j.bbr.2008.11.045

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Authors
Burton, B. G., Hok, V., Save, E., & Poucet, B.
Affiliations
Aix-Marseille Université (FR)
Corresponding author
Poucet, Bruno
Venue
Behavioural Brain Research
Publisher
Elsevier BV
Published
2009-05
Volume
199
Issue
2
Pages
222-234
ISSN
0166-4328 (ISSN-L)
OpenAlex
W2028824531
Cited by
86
References
92
Citations by year
2026: 2 · 2025: 3 · 2024: 6 · 2023: 6 · 2022: 3 · 2021: 8 · 2020: 2 · 2019: 3 · 2018: 8 · 2017: 6 · 2016: 4 · 2015: 7 · 2014: 6 · 2013: 9 · 2012: 3
FWCI
1.72
Type
journal article
Language
en
Open access
closed
Locations
  • Behavioural Brain Research (publishedVersion)
  • PubMed (publishedVersion)
  • HAL AMU (submittedVersion)
Funders
  • Fondation pour la Recherche Médicale (FDT-2006-1208711)
  • Fondation Fyssen
  • Agence Nationale de la Recherche
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
Keywords
medial prefrontal cortex, hippocampus, anticipatory activity, hippocampal lesions, prelimbic cortex, infralimbic cortex, goal-directed behavior, reward anticipation, impulse control, spatial navigation
MeSH terms
Action Potentials, Animals, Cues, Hippocampus, Male, Reward, Spatial Behavior, Time Factors, Prefrontal Cortex, Rats, Long-Evans, Rats

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