Cited by 246Dementia and Cognitive Impairment ResearchAlzheimer's disease research and treatmentsVisual perception and processing mechanisms

Atypical form of Alzheimer's disease with prominent posterior cortical atrophy: A review of lesion distribution and circuit disconnection in cortical visual pathways

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Hof, Patrick R., Vogt, Brent A., Bouras, Constantin, Morrison, John H.·1997·Vision Research

Abstract

In recent years, the existence of visual variants of Alzheimer's disease characterized by atypical clinical presentation at onset has been increasingly recognized. In many of these cases post-mortem neuropathological assessment revealed that correlations could be established between clinical symptoms and the distribution of neurodegenerative lesions. We have analyzed a series of Alzheimer's disease patients presenting with prominent visual symptomatology as a cardinal sign of the disease. In these cases, a shift in the distribution of pathological lesions was observed such that the primary visual areas and certain visual association areas within the occipito-parieto-temporal junction and posterior cingulate cortex had very high densities of lesions, whereas the prefrontal cortex had fewer lesions than usually observed in Alzheimer's disease. Previous quantitative analyses have demonstrated that in Alzheimer's disease, primary sensory and motor cortical areas are less damaged than the multimodal association areas of the frontal and temporal lobes, as indicated by the laminar and regional distribution patterns of neurofibrillary tangles and senile plaques. The distribution of pathological lesions in the cerebral cortex of Alzheimer's disease cases with visual symptomatology revealed that specific visual association pathways were disrupted, whereas these particular connections are likely to be affected to a less severe degree in the more common form of Alzheimer's disease. These data suggest that in some cases with visual variants of Alzheimer's disease, the neurological symptomatology may be related to the loss of certain components of the cortical visual pathways, as reflected by the particular distribution of the neuropathological markers of the disease.

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Research works printed but not linked: 3

  1. Flechsig, P. (1920). Anatomie des menschlichen Gehirns und Ru'cken- marks. Leipzig: Thieme.
  2. Hof, P. R. & Morrison J. H. (1994). The cellular basis of cortical disconnection in Alzheimer disease and related dementing condi- tions. In Terry, R. D., Katzman, R. & Bick, K. L. (Eds), Alzheimer disease (pp. 197-229). New York: Raven Press.
  3. Vogt, B. A. & Pandya, D. N. (1987). Cingulate cortex of rhesus monkey: 1I. Cortical afferents. Journal of Comparative Neurology, 262, 271-289.

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Authors
Hof, P. R., Vogt, B. A., Bouras, C., & Morrison, J. H.
Affiliations
  • Icahn School of Medicine at Mount Sinai (US)
  • Atrium Health Wake Forest Baptist (US)
  • University of Geneva (CH)
Corresponding author
Hof, Patrick R.
Venue
Vision Research
Publisher
Elsevier BV
Published
1997-12
Volume
37
Issue
24
Pages
3609-3625
ISSN
0042-6989 (ISSN-L)
OpenAlex
W2064772069
Cited by
246
References
113
Citations by year
2026: 11 · 2025: 4 · 2024: 1 · 2023: 2 · 2022: 4 · 2021: 3 · 2020: 5 · 2019: 10 · 2018: 7 · 2017: 12 · 2016: 9 · 2015: 11 · 2014: 15 · 2013: 12 · 2012: 18
FWCI
4.90
Type
journal article
Language
en
Open access
Locations
  • Vision Research (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • American Health Assistance Foundation (AG05138)
  • Brookdale Foundation
  • National Institutes of Health (5r01ag011480-03, AG06647, AG05138)
  • National Institute on Aging (AG 05138, AG11480, P50AG005138, AG-06647)
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 › Cognitive Neuroscience › Visual perception and processing mechanisms
Keywords
Alzheimer's disease, posterior cortical atrophy, lesion distribution, circuit disconnection, posterior cingulate cortex, visual association areas, neurofibrillary tangles, amyloid plaques, visual disturbances
MeSH terms
Aged, Alzheimer Disease, Atrophy, Humans, Parietal Lobe, Vision Disorders, Visual Cortex, Plaque, Amyloid

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