Cited by 200Memory and Neural MechanismsNeuroscience and Neuropharmacology ResearchCholinesterase and Neurodegenerative Diseases

The DOI matches its Crossref record; 31 of the 31 references it cites were found in a registry or an index.

Excitotoxic lesions of basal forebrain cholinergic neurons: Effects on learning, memory and attention

Abstract

A substantial body of literature has suggested that the memory and learning deficits associated with Alzheimer's disease are attributable to degeneration of the cholinergic magnocellular neurons of the nucleus basalis of Meynert (nbM). Subsequently, lesion-induced damage to the cholinergic projections from the nbM to the neocortex has been utilized extensively as an animal model of dementia. Ibotenic acid lesions of the basal forebrain have been found, for example, to produce deficits in a wide variety of tasks involving learning and memory. However, recently, with the availability of more potent cholinergic excitotoxins such as AMPA, it has become apparent that nbM lesions do not provide a simple animal model of the cognitive deficits in ageing and Alzheimer's disease. Further analysis suggests that many of the learning and memory impairments traditionally attributed to the cholinergic corticopetal system are due not to destruction of cholinergic neurons in the nbM, but instead result from the disruption of cortico-striatal outputs passing through the dorsal and ventral globus pallidus. Furthermore, experiments utilizing quisqualic acid and AMPA have revealed that the most convincing deficit observed as a result of such lesions is in visual attention. This role for the basal forebrain-cortical cholinergic system in attentional function is further supported by results obtained from complementary pharmacological studies. This does not exclude a role for acetylcholine in learning and memory processes. Rather, such cognitive processes appear to depend not upon the integrity of the nbM itself, but upon more rostral elements of the cholinergic basal forebrain system.

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Crossref · 10.1016/0166-4328(93)90128-d

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Research works printed but not linked: 4

  1. Bussey, 1993, Anterior, but not posterior, cingulate cortex lesions facilitate acquisition of a conditional visual discrimination task, Soc. Neurosci. Abstr., 19, 506.9
  2. Etherington, 1987, Comparative effects of nucleus basalis and fimbria-fornix lesions on delayed matching and alternation tests of memory, Neurosci. Res. Commun., 1, 135
  3. McAlonan, 1993, The role of the septohippocampal cholinergic projection in contextual learning and short-term memory processes, Soc. Neurosci. Abstr., 19, 506.8
  4. Muir, 1993, Dissociable behavioural effects following excitotoxic lesions of rostral and caudal elements of the basal forebrain cholinergic system, Soc. Neurosci. Abstr., 19, 506.10

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Metadata

Authors
Muir, J. L., Page, K. J., Sirinathsinghji, D. J. S., Robbins, T. W., & Everitt, B. J.
Affiliations
University of Cambridge (GB)
Corresponding author
Everitt, Barry J.
Venue
Behavioural Brain Research
Publisher
Elsevier BV
Published
1993-11
Volume
57
Issue
2
Pages
123-131
ISSN
0166-4328 (ISSN-L)
OpenAlex
W2052625961
Cited by
199
References
30
Citations by year
2026: 2 · 2025: 2 · 2024: 3 · 2023: 1 · 2021: 4 · 2020: 4 · 2019: 4 · 2018: 6 · 2017: 3 · 2016: 9 · 2015: 7 · 2014: 9 · 2013: 9 · 2012: 1
FWCI
1.57
Type
journal article
Language
en
Open access
closed
Locations
  • Behavioural Brain Research (publishedVersion)
  • PubMed (publishedVersion)
Funders
Wellcome Trust
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 (medical) › Cholinesterase and Neurodegenerative Diseases
Keywords
excitotoxic lesions, cholinergic neurons, basal forebrain, nucleus basalis of Meynert, Alzheimer's disease, learning and memory impairment, visual attention, globus pallidus, corticostriatal pathway, ibotenic acid, quisqualic acid, AMPA, animal models of dementia, acetylcholine
MeSH terms
Acetylcholine, Alzheimer Disease, Animals, Attention, Brain Mapping, Cerebral Cortex, Cholinergic Fibers, Disease Models, Animal, Humans, Learning, Memory, Substantia Innominata, Prosencephalon, Receptors, AMPA, alpha-Amino-3-hydroxy-5-methyl-4-isoxazolepropionic Acid

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