Cited by 75Dementia and Cognitive Impairment ResearchAlzheimer's disease research and treatmentsNeuroinflammation and Neurodegeneration Mechanisms

Neural substrates of cognitive and behavioral deficits in atypical Alzheimer's disease

von Gunten, Armin, Bouras, Constantin, Kövari, Enikö, Giannakopoulos, Panteleimon, Hof, Patrick R.·2006·Brain Research Reviews

Abstract

Alzheimer's disease (AD) is a neurodegenerative disorder characterized by a progressive cognitive decline that typically affects first memory and later executive functions, language, and visuospatial skills. This sequence of cognitive deterioration is thought to reflect the progressive invasion of the cerebral cortex by the two major pathological hallmarks of AD, neurofibrillary tangles (NFT) and senile plaques (SP), as well as degree of neuronal and synaptic loss. In atypical AD, prominent and early deficits are found in language, motor abilities, frontal and executive capacities, or visuospatial skills. These atypical clinical features are associated with an unusual pattern of NFT or SP formation that predominantly involves cortical areas usually spared in the course of the degenerative process. In an attempt to classify this highly heterogeneous subgroup, the present article provides an overview of clinicopathological analyses in patients with atypical progression of AD symptomatology with special reference to the relationship between specific cognitive and behavioral deficits and hierarchical patterns of AD lesion distribution within the cerebral cortex. On the basis of these representative examples of a cortical circuit-based approach to explore the mechanisms giving rise to AD neuropsychological expression, we also critically discuss the possibility to develop a matrix linking clinical presentations to degeneration of forward and backward long corticocortical pathways in this disorder.

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Crossref · 10.1016/j.brainresrev.2005.11.003

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Authors
von Gunten, A., Bouras, C., Kövari, E., Giannakopoulos, P., & Hof, P. R.
Affiliations
  • University Hospital of Geneva (CH)
  • Icahn School of Medicine at Mount Sinai (US)
Venue
Brain Research Reviews
Publisher
Elsevier BV
Published
2006-08
Volume
51
Issue
2
Pages
176-211
ISSN
0165-0173 (ISSN-L)
OpenAlex
W2088923332
Cited by
75
References
289
Citations by year
2026: 1 · 2025: 1 · 2024: 2 · 2023: 1 · 2022: 2 · 2020: 3 · 2019: 4 · 2018: 1 · 2017: 5 · 2016: 1 · 2015: 2 · 2014: 7 · 2013: 7 · 2012: 6
FWCI
3.19
Type
journal article
Language
en
Open access
closed
Locations
  • Brain Research Reviews (publishedVersion)
  • PubMed (publishedVersion)
  • IRIS (submittedVersion)
  • SERVAL (Université de Lausanne) (submittedVersion)
Funders
  • National Institutes of Health
  • National Institute on Aging (AG-02219, AG 05138, P50AG005138, P01AG002219)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
Keywords
atypical Alzheimer's disease, neurofibrillary tangles, amyloid plaques, cognitive impairment, behavioral deficits, language impairment, visuospatial deficits, executive dysfunction, motor impairment, cortico-cortical pathways, clinicopathological correlation
MeSH terms
Adult, Aged, Alzheimer Disease, Behavioral Symptoms, Cerebral Cortex, Cognition Disorders, Female, Humans, Male, Middle Aged, Models, Neurological, Neural Pathways, Neurofibrillary Tangles, Age of Onset, Disease Progression, Plaque, Amyloid

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