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Clinical Note | Open Access
Visual Agnosia for Line Drawings and Silhouettes without Apparent Impairment of Real-Object Recognition: A Case Report
Kotaro Hiraoka
,1 Kyoko Suzuki,1,2 Kazumi Hirayama,1 and Etsuro Mori11Department of Behavioral Neurology and Cognitive Neuroscience, Tohoku University Graduate School of Medicine, Aoba-ku, Sendai, Japan
2Department of Clinical Neuroscience, Yamagata University Graduate School of Medicine, Yamagata, Japan
Abstract
We report on a patient with visual agnosia for line drawings and silhouette pictures following cerebral infarction in the region of the right posterior cerebral artery. The patient retained the ability to recognize real objects and their photographs, and could precisely copy line drawings of objects that she could not name. This case report highlights the importance of clinicians and researchers paying special attention to avoid overlooking agnosia in such cases. The factors that lead to problems in the identification of stimuli other than real objects in agnosic cases are discussed.
Copyright
Copyright © 2009 Hindawi Publishing Corporation and the authors. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
