Delis D C, Kiefner M G, Fridlund A J
San Diego VA Medical Center, CA.
J Clin Exp Neuropsychol. 1988 Aug;10(4):421-31. doi: 10.1080/01688638808408250.
Unlike the aphasias, visuospatial dysfunction has resisted fractionation into meaningful spared and impaired component functions. In this study, we show that unilateral brain damage results in pronounced dissociations in both hierarchical and hemispatial processing. Patients with left-hemisphere damage showed the greatest impairment in drawing forms at the lower level of hierarchical stimuli presented in right hemispace, whereas patients with right-hemisphere compromise displayed the opposite pattern. We discuss implications of these results for research in visuospatial function and clinical assessment of visuospatial dysfunction.
与失语症不同，视觉空间功能障碍难以分解为有意义的保留和受损的组成功能。在本研究中，我们表明单侧脑损伤会导致在层次加工和半空间加工中出现明显的分离。左侧半球损伤的患者在右半空间呈现的较低层次刺激下绘制图形时受损最为严重，而右侧半球受损的患者则表现出相反的模式。我们讨论了这些结果对视觉空间功能研究和视觉空间功能障碍临床评估的意义。
