Affiliations: Department of Behavioral Neurology and Cognitive
Neuroscience, Tohoku University Graduate School of Medicine, Aoba-ku, Sendai,
Japan | Department of Clinical Neuroscience, Yamagata
University Graduate School of Medicine, Yamagata, Japan
Note: [] Corresponding author: Kotaro Hiraoka, MD, Department of
Behavioral Neurology and Cognitive Neuroscience, Tohoku University Graduate
School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai, 980-8575, Japan. Tel.:
+81 22 717 7358; Fax: +81 22 717 7360; E-mail: khiraoka@mail.tains.tohoku.ac.jp
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.
Keywords: Visual agnosia, real objects, photographs, line drawings, silhouettes, cerebral infarction, posterior cerebral artery
