Cited by 72Dementia and Cognitive Impairment ResearchAlzheimer's disease research and treatmentsCognitive Abilities and Testing

Age at onset and visuocognitive disturbances in Alzheimer disease.

Fujimori, Misato, Imamura, Toru, Yamashita, Hikari, Hirono, Nobutsugu, Ikejiri, Yoshitaka, Shimomura, Tatsuo, Mori, Etsuro·1998·Alzheimer Disease & Associated Disorders

Abstract

We examined the relation of age at onset and visuocognitive disturbances in Alzheimer disease (AD) using a large sample of patients, quantitative neuropsychological measures, and multivariate statistics controlling for gender, education, stage of dementia, and disease duration. Significant positive coefficients were obtained with forward and backward digit and visual spans, visual counting, copying Rey complex figure, and block design task. The results indicated that patients with early-onset AD performed worse than late-onset AD patients on these tasks. There was no significant effect of age at onset on identification of overlapping figures, visual form discrimination, or Raven's colored progressive matrices. These findings confirm the greater attentional and visuospatial impairments in early onset patients when these confounding factors were controlled for, although no significant effect of age at onset in visuoperceptual function was observed.

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Crossref · 10.1097/00002093-199809000-00007

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Authors
Fujimori, M., Imamura, T., Yamashita, H., Hirono, N., Ikejiri, Y., Shimomura, T., & Mori, E.
Venue
Alzheimer Disease & Associated Disorders
Published
1998-09
Volume
12
Issue
3
Pages
163-166
ISSN
0893-0341 (ISSN-L)
OpenAlex
W2063629105
Cited by
72
References
0
Citations by year
2026: 2 · 2025: 3 · 2024: 3 · 2023: 1 · 2022: 4 · 2021: 4 · 2020: 2 · 2019: 3 · 2018: 1 · 2017: 2 · 2016: 3 · 2015: 6 · 2014: 1 · 2013: 5 · 2012: 7
FWCI
0.78
Type
journal article
Language
en
Open access
closed
Locations
  • Alzheimer Disease & Associated Disorders (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Cognitive Abilities and Testing
Keywords
Alzheimer's disease, age of onset, early-onset Alzheimer's disease, late-onset Alzheimer's disease, visuospatial impairment, attention, digit span, visual span, visual counting, Rey Complex Figure, block designs, visual form discrimination, Coloured Progressive Matrices
MeSH terms
Age Factors, Aged, Aged, 80 and over, Alzheimer Disease, Attention, Cognition Disorders, Discrimination Learning, Female, Humans, Male, Middle Aged, Neuropsychological Tests, Perceptual Disorders, Problem Solving, Psychometrics, Mental Recall, Visual Perception

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