The Processing of Global and Local Visual Information in Alzheimer’s Disease

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...

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Main Authors: Eriko Matsumoto, Yoshitaka Ohigashi, Misato Fujimori, Etsuro Mori
Format: Article
Language:English
Published: Wiley 2000-01-01
Series:Behavioural Neurology
Online Access:http://dx.doi.org/10.1155/2000/683156
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author Eriko Matsumoto
Yoshitaka Ohigashi
Misato Fujimori
Etsuro Mori
author_facet Eriko Matsumoto
Yoshitaka Ohigashi
Misato Fujimori
Etsuro Mori
author_sort Eriko Matsumoto
collection DOAJ
description 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.
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institution Kabale University
issn 0953-4180
1875-8584
language English
publishDate 2000-01-01
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series Behavioural Neurology
spelling doaj-art-6f8e0cd804164280b727bb52363fe7d92025-02-03T06:43:47ZengWileyBehavioural Neurology0953-41801875-85842000-01-0112311912510.1155/2000/683156The Processing of Global and Local Visual Information in Alzheimer’s DiseaseEriko Matsumoto0Yoshitaka Ohigashi1Misato Fujimori2Etsuro Mori3Department of Graduated school of human and environmental studies, Kyoto University, JapanDepartment of Graduated school of human and environmental studies, Kyoto University, JapanDivisions of Clinical Neurosciences and Neuroimaging Research, Hyogo Institute for Aging Brain and Cognitive Disorders, Himeji, JapanDivisions of Clinical Neurosciences and Neuroimaging Research, Hyogo Institute for Aging Brain and Cognitive Disorders, Himeji, JapanWe 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.http://dx.doi.org/10.1155/2000/683156
spellingShingle Eriko Matsumoto
Yoshitaka Ohigashi
Misato Fujimori
Etsuro Mori
The Processing of Global and Local Visual Information in Alzheimer’s Disease
Behavioural Neurology
title The Processing of Global and Local Visual Information in Alzheimer’s Disease
title_full The Processing of Global and Local Visual Information in Alzheimer’s Disease
title_fullStr The Processing of Global and Local Visual Information in Alzheimer’s Disease
title_full_unstemmed The Processing of Global and Local Visual Information in Alzheimer’s Disease
title_short The Processing of Global and Local Visual Information in Alzheimer’s Disease
title_sort processing of global and local visual information in alzheimer s disease
url http://dx.doi.org/10.1155/2000/683156
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