Reflexive joint attention depends on lateralized cortical connections
Reflexive joint attention depends on lateralized cortical connections
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DOI：
10.1111/1467-9280.00232
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发表时间：
2000-03-01
影响因子：
8.2
通讯作者：
Gazzaniga, MS
中科院分区：
文献类型：
--
作者：
Kingstone, A;Friesen, CK;Gazzaniga, MS
联合注意力，即自发地将注意力转移到其他人正在看的地方的倾向，被认为是会发生的，因为眼睛的方向为环境中重要事件的存在提供了可靠的线索。但是我们发现，成年人会将他们的注意力转移到示意性面部正在看的地方-即使当注视方向不能预测环境中的任何事件时。对2名裂脑患者的研究表明，这种反射性的联合注意力是单侧的。此外，尽管这种现象可以通过面部倒置来抑制，但仅眼睛就能产生注意力的反射性转移。与最近的功能性神经影像学研究一致，这些结果表明，（a）颞叶子系统专门用于处理直立的面孔和凝视（B）顶叶区专门用于定向空间注意力之间的偏侧皮质连接是人类对凝视方向的反射性注意转移的基础。
Joint attention, the tendency to spontaneously direct attention to where someone else is looking, has been thought to occur because eye direction provides a reliable cue to the presence of important events in the environment. we have discovered, however; that adults will shift their attention to where a schematic face is looking-even when gaze direction does not predict any events in the environment. Research with 2 split-brain patients revealed that this reflexive joint attention is lateralized to a single hemisphere. Moreover, although this phenomenon could be inhibited by inversion of a face, eyes alone produced reflexive shifts of attention. Consistent with recent functional neuroimaging studies, these results suggest that lateralized cortical connections between (a) temporal lobe subsystems specialized for processing upright faces and gaze and (b) the parietal area specialized for orienting spatial attention underlie human reflexive shifts of attention in response to gaze direction.