title: Dystypia without aphasia associated with visuospatial memory impairment in a patient with acute stroke.
abstract: Keyboard typing is a multifunctional task related to language, visual-spatial and motor abilities. If one of these functions is impaired, difficulty during typing could occur. Here, a 64-year-old right-handed man is reported who developed a sudden typing disturbance without aphasia or neglect. Magnetic resonance imaging of the brain showed discrete acute infarcts in the border-zone regions, bilaterally, predominantly in the left hemisphere. The neuropsychiatric testing showed an impaired visual-spatial memory domain; however, other cognitive functions were all normal. These findings suggest that visual-spatial memory impairment, associated with a left frontal subcortical infarct, is a probable anatomic substrate associated with the inability to type.
authors.affiliation: Department of Neurology, The Catholic University of Korea, Seoul, Korea.
authors.forename: Dong-Woo
authors.initials: DW
authors.lastname: Ryu
authors.forename: Joong-Seok
authors.initials: JS
authors.lastname: Kim
authors.forename: Dong-Won
authors.initials: DW
authors.lastname: Yang
authors.forename: Yeong-In
authors.initials: YI
authors.lastname: Kim
authors.forename: Kwang-Soo
authors.initials: KS
authors.lastname: Lee
mesh_terms: D001921:Brain / Q000473:pathology / Q000503:physiopathology; D007839:Functional Laterality; D006801:Humans; D008297:Male; D008569:Memory Disorders / Q000209:etiology* / Q000473:pathology* / Q000503:physiopathology; D008875:Middle Aged; D011597:Psychomotor Performance; D020521:Stroke / Q000150:complications* / Q000473:pathology* / Q000503:physiopathology