Article: article from journal or magazin.
Case report (case report): feedback on an observation with a short commentary.
Optic aphasia with pure alexia: a mild form of visual associative agnosia? A case study.
Publication types: Case Reports ; Journal ArticlePublication Status: ppublish
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.
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
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