Cited by 67Memory and Neural MechanismsNeuroscience and Neuropharmacology ResearchCholinesterase and Neurodegenerative Diseases

The septo-hippocampal system, learning and recovery of function

Niewiadomska, Grazyna, Baksalerska-Pazera, Marta, Riedel, Gernot·2009·Progress in Neuro-Psychopharmacology and Biological Psychiatry

Abstract

We understand this review as an attempt to summarize recent advances in the understanding of cholinergic function in cognition. Such a role has been highlighted in the 1970s by the discovery that dementia patients have greatly reduced cholinergic activity in cortex and hippocampus. A brief anatomical description of the major cholinergic pathways focuses on the basal forebrain and its projections to cortex and hippocampus. From this distinction, compelling evidence suggests that the basal forebrain --> cortex projection regulates the excitability of principal cortical neurons and is thereby critically involved in attention, stimulus detection and memory function, although the biological conditions for these functions are still debated. Similar uncertainties remain for the septo-hippocampal cholinergic system. Although initial lesions of the septum caused memory deficits reminiscent of hippocampal ablations, recent and more refined neurotoxic lesion studies which spared non-cholinergic cells of the basal forebrain failed to confirm these memory impairments in experimental animals despite a near total loss of cholinergic labeling. Yet, a decline in cholinergic markers in aging and dementia still stands as the most central piece of evidence for a link between the cholinergic system and cognition and appear to provide valuable targets for therapeutic approaches.

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Crossref · 10.1016/j.pnpbp.2009.03.039

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Authors
Niewiadomska, G., Baksalerska-Pazera, M., & Riedel, G.
Affiliations
  • Instytut Biologii Doświadczalnej im. Marcelego Nenckiego (PL)
  • University of Aberdeen (GB)
Venue
Progress in Neuro-Psychopharmacology and Biological Psychiatry
Publisher
Elsevier BV
Published
2009-08
Volume
33
Issue
5
Pages
791-805
ISSN
0278-5846 (ISSN-L)
OpenAlex
W1979648372
Cited by
67
References
325
Citations by year
2026: 2 · 2025: 3 · 2024: 1 · 2023: 5 · 2022: 5 · 2021: 1 · 2020: 4 · 2019: 1 · 2018: 2 · 2017: 4 · 2016: 2 · 2015: 5 · 2014: 6 · 2013: 7 · 2012: 9
FWCI
3.06
Type
journal article
Language
en
Open access
closed
Locations
  • Progress in Neuro-Psychopharmacology and Biological Psychiatry (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Health Sciences › Medicine › Pharmacology › Cholinesterase and Neurodegenerative Diseases
Keywords
memory impairment, septal lesions, hippocampal ablation, cortical excitability, attention, stimulus detection, dementia, aging, cholinergic markers, functional recovery, learning
MeSH terms
Animals, Cognition Disorders, Hippocampus, Humans, Learning, Nerve Net, Recovery of Function, Septum of Brain

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