Roy E A, Black S E, Blair N, Dimeck P T
Department of Kinesiology, University of Waterloo, Ontario, Canada.
J Clin Exp Neuropsychol. 1998 Oct;20(5):628-43. doi: 10.1076/jcen.20.5.628.1128.
The frequency and characteristics of apraxia in 63 stroke patients with left- or right-hemisphere damage were examined. Analyses focussing on five dimensions of gestural performance revealed an overall frequency of apraxia of 54% in patients with LHD and 30% in patients with RHD. Although both groups were impaired on the orientation and hand posture dimensions of performance, the patients with RHD exhibited significantly poorer performance on the location dimension and the patients with LHD on the action dimension. Analyses of intrahemispheric lesion localization implicated damage to subcortical areas involving periventricular white matter tracts at the temporoparietal junction with apraxia.
对63例左半球或右半球损伤的中风患者失用症的频率和特征进行了检查。针对手势表现的五个维度进行的分析显示，左半球损伤患者的失用症总体发生率为54%，右半球损伤患者为30%。尽管两组在表现的方向和手部姿势维度上均受损，但右半球损伤患者在位置维度上的表现明显较差，而左半球损伤患者在动作维度上的表现较差。半球内病变定位分析表明，失用症与涉及颞顶叶交界处脑室周围白质束的皮质下区域损伤有关。
