Hillis A E, Rapp B, Benzing L, Caramazza A
Department of Neurology, Johns Hopkins University School of Medicine.
Brain Cogn. 1998 Aug;37(3):491-526. doi: 10.1006/brcg.1998.1010.
Detailed analyses of reading and nonlexical tasks by three patients with unilateral spatial neglect (USN) secondary to stroke indicate that the USN in each of these patients affects the left side (contralateral to brain damage) of the viewer, with respect to the viewer's head, mid-sagittal plane of the body, or line of sight. In one case, the neglect was further specified as concerning the left side of the viewer's line of sight (the left half of her residual visual field). Thus, the frame of reference of USN in these three cases appears to have viewer-centered (in at least one case, specifically retinotopic) coordinates. The performance of these patients is contrasted to that of other patients in the literature whose USN appears to have a frame of reference with stimulus-centered or object-centered coordinates. These results are interpreted within a model of visual processing (adapted from Marr, 1980 and others) with at least three coordinate frames. It is argued that USN can affect one or more of these coordinate frames independently.
对三名因中风导致单侧空间忽视（USN）的患者进行的阅读和非词汇任务的详细分析表明，在这些患者中，每名患者的USN都会影响观察者相对于其头部、身体正中矢状面或视线的左侧（与脑损伤对侧）。在一个案例中，忽视被进一步明确为涉及观察者视线的左侧（其残余视野的左半部分）。因此，这三个案例中USN的参照系似乎具有以观察者为中心（至少在一个案例中，具体为视网膜拓扑的）坐标。这些患者的表现与文献中其他患者的表现形成对比，后者的USN似乎具有以刺激为中心或物体为中心坐标的参照系。这些结果在一个具有至少三个坐标系的视觉处理模型（改编自Marr，1980年及其他人的研究）中得到解释。有人认为，USN可以独立影响这些坐标系中的一个或多个。
