Action outcomes are represented in human inferior frontoparietal cortex
Action outcomes are represented in human inferior frontoparietal cortex
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DOI：
10.1093/cercor/bhm150
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发表时间：
2008-05-01
期刊：
影响因子：
3.7
通讯作者：
Grafton, Scott T.
中科院分区：
文献类型：
--
作者：
Hamilton, Antonia F. de C.;Grafton, Scott T.
按下一个开关这个简单的动作有很多可能的解释演员可能是在开灯，从电脑中删除重要文件，甚至是关闭生命维持系统。在每种情况下，动作的运动参数都是相同的，但物理结果不同。我们报告的证据，抑制反应的右下顶叶和右下额叶皮层时，参与者看到重复的电影显示相同的动作结果，但这些地区没有区分的运动参数的动作完成。因此，这些大脑区域对人类在世界上的行为的物理结果进行编码。这些结果与人类行为理解的层次模型是一致的，在该模型中，从枕叶到顶叶和额叶区域的一系列专门过程使人类能够理解世界上行为的物理后果以及这些行为背后的意图。
The simple action of pressing a switch has many possible interpretations-the actor could be turning on a light, deleting critical files from a computer, or even turning off a life-support system. In each of these cases, the motor parameters of the action are the same but the physical outcome differs. We report evidence of suppressed responses in right inferior parietal and right inferior frontal cortex when participants saw repeated movies showing the same action outcome, but these regions did not distinguish the kinematic parameters by which the action was accomplished. Thus, these brain areas encode the physical outcomes of human actions in the world. These results are compatible with a hierarchical model of human action understanding in which a cascade of specialized processes from occipital to parietal and frontal regions allow humans to understand the physical consequences of actions in the world and the intentions underlying those actions.