远、近空间内注意加工的分离

临床证据发现空间忽视症病人对于近处和远处空间内的注意加工存在差异，表现为空间忽视只发生于近处空间或只发生于远处空间，提示近处空间与远处空间在脑内可能是分别表征的。对健康成人的研究也发现了与之类似的近处空间和远处空间注意的分离现象，即在近处空间表现出左偏的伪忽视现象，在远处空间表现出左偏减弱或者右偏的趋势。本文综述了远、近空间内注意加工分离的实验证据以及采用线段二分任务这一主要的研究范式相关的实验结果，并且着重指出了远、近空间的划分不是绝对的，而是动态可变的研究证据。最后，指出了将来的研究需要深入考察空间参照系统在远、近空间知觉中的作用，以及关注社会交互情境下的远、近空间距离认知的动态变化。

Dissociation of Attention in Near and Far Space

Clinical literature with neglect patients and recent stud- ies with normal adults have provided evidence that functionally dissociated sub-systems may be responsible for the perception and response to stimuli in near and far spaces. We reviewed the recent progress pertaining to the study of attention in near and far space and the main experimental paradigm, i. e., the line bisection task. Moreover, we argued that the transition from nearto far space is not fixed, but could be extended or contracted. Future studies may focus on the role of spatial reference frame of cognitive processing in near and far spaces and the flexibility of spatial cognition under social contexts.