title: Pure topographical disorientation following a right forceps major of the splenium lesion: a case study.
abstract: A 72-year-old man with pure topographical disorientation following a focal hemorrhage in the right forceps major of splenium was assessed at 2 weeks and 3 months after the onset. Initially, he could identify familiar buildings and landmarks, but noted topographical disorientation, dysfunction in sense of quarters, and in visuo-spatial function. The improvement of topographical disorientation was attained in 3 months, while the inability of the sense of quarters and manipulating visuo-spatial information remained unchanged. These results suggested the heading disorientation was accompanied with impaired sense of quarters, although disabled sense of quarters continued beyond the recovery of heading disorientation.
authors.affiliation: Department of Communication Disorders, School of Psychological Science, Health Sciences University of Hokkaido, Sapporo, Japan. tamurait@hoku-iryo-u.ac.jp
authors.forename: Itaru
authors.initials: I
authors.lastname: Tamura
authors.forename: Mayumi
authors.initials: M
authors.lastname: Kitagawa
authors.forename: Mika
authors.initials: M
authors.lastname: Otsuki
authors.forename: Seiji
authors.initials: S
authors.lastname: Kikuchi
authors.forename: Kunio
authors.initials: K
authors.lastname: Tashiro
authors.forename: Bruno
authors.initials: B
authors.lastname: Dubois
mesh_terms: D000368:Aged; D001931:Brain Mapping; D003337:Corpus Callosum / Q000293:injuries / Q000503:physiopathology*; D005500:Follow-Up Studies; D006470:Hemorrhage / Q000150:complications* / Q000473:pathology; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D009483:Neuropsychological Tests; D009949:Orientation / Q000502:physiology*; D010468:Perceptual Disorders / Q000209:etiology* / Q000473:pathology*; D010775:Photic Stimulation; D011597:Psychomotor Performance / Q000502:physiology; D012189:Retrospective Studies; D013028:Space Perception / Q000502:physiology