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

被引:20
作者
Chanoine, V [1 ]
Ferreira, CT
Demonet, JF
Nespoulous, JL
Poncet, M
机构
[1] CHU Purpan, INSERM U455, Serv Neurol, F-31059 Toulouse, France
[2] Fac Med Marseille, Lab Neurophysiol & Neuropsychol, INSERM CJF 9706, F-13385 Marseille, France
[3] Lab Jacques Lordat, Maison Rech, Toulouse, France
[4] Fed Univ Rio De Janeiro, HUCFF, Dept Neurol, Rio De Janeiro, Brazil
关键词
optic aphasia; pure alexia; associative agnosia;
D O I
10.1016/S0010-9452(08)70766-4
中图分类号
B84 [心理学]; C [社会科学总论]; Q98 [人类学];
学科分类号
03 ; 0303 ; 030303 ; 04 ; 0402 ;
摘要
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 alesia. This symmetric performance between object and letter processing may also constitute a mild form of visual associative agnosia.
引用
收藏
页码:437 / 448
页数:12
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