The processing of global and local visual information in Alzheimer's disease

Eriko Matsumoto, Yoshitaka Ohigashi, Misato Fujimori, Etsuro Mori

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


We examined the quantitative and qualitative difference of the pattern with visuo-cognitive processing impairment in patients with early onset AD (EOAD) and late onset AD (LOAD). We use a visual attention task introduced by Navon (1977) to examine the function to integrate local visual stimuli into global image. Although the ability to identify solid digits ether of large and small size presented at the same exposure duration, EOAD performance was poor in the global perception especially at the short duration (20 msec). We provide evidence that this dysfunction is attribute to the AD pathology specific to early onset type.

Original languageEnglish
Pages (from-to)119-125
Number of pages7
JournalBehavioural Neurology
Issue number3
Publication statusPublished - 2000


  • Age at onset
  • Alzheimer's disease
  • Global and local perception
  • Visual attention

ASJC Scopus subject areas

  • Neuropsychology and Physiological Psychology
  • Neurology
  • Clinical Neurology


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