Is unilateral spatial neglect a single phenomenon?
Is unilateral spatial neglect a single phenomenon?
复制标题
单方面的空间忽视是单一现象吗？
作者：
S. Maeshima;G. Truman;D. S. Smith;N. Dohi;K. Nakai;T. Itakura;N. Komai
摘要本研究的目的是报告一个传统的电池的测试和我们的原始电池能够评估存在的组件和单侧空间忽视患者的病变程度的初步结果。30例右侧半球卒中的单侧空间忽视患者在发病后至少4周进行了探索运动（E-M）任务、视觉计数（V-C）任务和传统忽视电池的单侧空间忽视评估。其他神经心理学测试和计算机断层扫描也进行了调查与忽视的关系。因素分析表明，我们的任务负载显着三个因素。其中16例出现E-M忽视，22例出现V-C忽视。E-M忽视与运动麻痹、词语流畅性、向后数字广度和运动不持久性有高度相关。V-C忽略与视野缺损、线段平分、线段取消、图形复制等有高度相关性。额叶、尾状核、小脑和室旁白色物质前部的病变通常与E-M忽视相关。枕叶病变也与V-C忽视有关。我们认为，单方面忽视不是一个单一的现象，而是涉及几个不同的组成部分。我们建议E-M和V-C任务是评估单侧空间忽略患者病变程度的有用方法。
Abstract The aim of this study is to report the preliminary findings of a traditional battery of tests and our original battery capable of assessing the presence of components and extent of lesions in patients with unilateral spatial neglect. Thirty patients who had unilateral spatial neglect with a stroke in the right hemisphere were assessed for unilateral spatial neglect on exploratory-motor (E-M) tasks, visual-counting (V-C) tasks, and traditional neglect batteries at least 4 weeks after the onset. Other neuropsychological tests and computed tomography were also performed to investigate the relationship with neglect. A factor analysis showed that our tasks loaded significantly on three factors. E-M neglect was found in 16 patients, and V-C neglect in 22 patients with unilateral spatial neglect. There were high correlations between E-M neglect and motor paralysis, word fluency, backward digit span and motor impersistence. There were high correlations between V-C neglect and visual-field defect, line bisection, line cancellation and figure copying. Lesions in the frontal lobe, caudate, insula, and anterior portion of the paraventricular white matter were commonly associated with E-M neglect. Lesions in the occipital lobe were also associated with V-C neglect. We suggest that unilateral neglect is not a single phenomenon, but rather involves several different components. We propose that E-M and V-C tasks are useful methods for evaluating the extent of lesions in patients with unilateral spatial neglect.