Optic aphasia with pure alexia: a mild form of visual associative agnosia? A case study.

Details

Serval ID
serval:BIB_0A26A154A5FF
Type
Article: article from journal or magazin.
Publication sub-type
Case report (case report): feedback on an observation with a short commentary.
Collection
Publications
Title
Optic aphasia with pure alexia: a mild form of visual associative agnosia? A case study.
Journal
Cortex
Author(s)
Chanoine V., Ferreira C.T., Demonet J.F., Nespoulous J.L., Poncet M.
ISSN
0010-9452 (Print)
ISSN-L
0010-9452
Publication state
Published
Issued date
1998
Peer-reviewed
Oui
Volume
34
Number
3
Pages
437-448
Language
english
Notes
Publication types: Case Reports ; Journal ArticlePublication Status: ppublish
Abstract
A single-case study is reported of a naming disorder selective to the visual modality. The patient showed intact access to structural knowledge of objects and letters, but impaired access to complete semantic knowledge of objects and alphabetical knowledge of letters from visual input. The impairment was most striking when the patient had to discriminate between semantically similar objects or within a given symbolic repertoire, i.e. letters. The co-occurrence of a partial deficit of visual recognition for objects and for letters indicated features of optic aphasia and pure alexia. This symmetric performance between object and letter processing may also constitute a mild form of visual associative agnosia.
Keywords
Aged, Agnosia/diagnosis, Agnosia/psychology, Aphasia/diagnosis, Aphasia/psychology, Attention, Brain Mapping, Cerebral Infarction/diagnosis, Cerebral Infarction/psychology, Discrimination Learning, Dyslexia, Acquired/diagnosis, Dyslexia, Acquired/psychology, Humans, Male, Mental Recall, Neuropsychological Tests, Pattern Recognition, Visual, Perceptual Disorders/diagnosis, Perceptual Disorders/psychology, Semantics, Visual Perception
Pubmed
Web of science
Create date
24/03/2013 17:02
Last modification date
20/08/2019 12:32
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