Ota H, Fujii T, Tabuchi M, Sato K, Saito J, Yamadori A
Division of Neuropsychology, Department of Disability Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan.
Neurology. 2003 Jun 10;60(11):1846-8. doi: 10.1212/01.wnl.0000065899.22903.07.
The authors describe a patient who experienced two successive strokes in the right hemisphere. After the first stroke, she showed stimulus-centered left neglect confined to right space on a circle discrimination task, which resolved. After the second stroke, she showed body-centered left neglect on the same task. These observations of two types of left neglect in the same patient suggest there are at least two distinct spatial attentional systems in the brain: global and focal attentional systems.
作者描述了一位在右半球经历了两次连续中风的患者。第一次中风后，她在圆圈辨别任务中表现出以刺激为中心的左侧忽视，仅限于右侧空间，这种情况后来得到缓解。第二次中风后，她在相同任务中表现出以身体为中心的左侧忽视。在同一患者身上观察到的这两种类型的左侧忽视表明，大脑中至少存在两种不同的空间注意力系统：全局注意力系统和局部注意力系统。
