title: Visual agnosia for line drawings and silhouettes without apparent impairment of real-object recognition: a case report.
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.
authors.affiliation: Department of Behavioral Neurology and Cognitive Neuroscience, Tohoku University Graduate School of Medicine, Aoba-ku, Sendai, Japan. khiraoka@mail.tains.tohoku.ac.jp
authors.forename: Kotaro
authors.initials: K
authors.lastname: Hiraoka
authors.forename: Kyoko
authors.initials: K
authors.lastname: Suzuki
authors.forename: Kazumi
authors.initials: K
authors.lastname: Hirayama
authors.forename: Etsuro
authors.initials: E
authors.lastname: Mori
mesh_terms: D000368:Aged; D000377:Agnosia / Q000473:pathology; D001154:Art; D001921:Brain / Q000473:pathology; D005260:Female; D006801:Humans; D009483:Neuropsychological Tests; D010364:Pattern Recognition, Visual; D010775:Photic Stimulation; D014796:Visual Perception