Anderson B
Department of Neurology, University of Alabama, Birmingham 35294-0007.
Med Hypotheses. 1992 Nov;39(3):295-301. doi: 10.1016/0306-9877(92)90127-x.
The brain has two attentional systems; one attentional system is devoted to intrapersonal space and the second attentional system to extrapersonal space. The development of these two attentional systems with inward or outward focus arose from the hemispheral neural systems designed for attending to extrapersonal contralateral space. As a necessary consequence of the brain changes to develop language, one of the hemispheral attentional systems was altered for intrapersonal attention while the other hemispheral attentional system became obligated to attend to all of extrapersonal space. This conceptualization of attention provides a coherent explanation for the confusing hemispheral dominance proposed for attention on the basis of clinical hemineglect, i.e. that the left hemisphere attends to right extrapersonal space and that the right hemisphere attends to both left and right extrapersonal space. This conceptualization also provides a meaningful account of denial of limbs (anosognosia) and imagery.
大脑有两个注意力系统；一个注意力系统专注于个人空间，第二个注意力系统专注于个人外部空间。这两个具有内向或外向焦点的注意力系统的发展源于为关注对侧个人外部空间而设计的半球神经系统。作为大脑发展语言变化的必然结果，其中一个半球注意力系统被改变用于个人内部注意力，而另一个半球注意力系统则必须关注所有个人外部空间。这种注意力的概念化为基于临床半侧忽视提出的令人困惑的半球优势提供了连贯的解释，即左半球关注右侧个人外部空间，右半球关注左侧和右侧个人外部空间。这种概念化也为肢体否认（疾病感缺失）和意象提供了有意义的解释。
