Farrer Chlöé, Frey Scott H, Van Horn John D, Tunik Eugene, Turk David, Inati Souheil, Grafton Scott T
Centre de Neuroscience Cognitive, Université Claude Bernard Lyon 1, CNRS, 69675 Lyon, France.
Cereb Cortex. 2008 Feb;18(2):254-61. doi: 10.1093/cercor/bhm050. Epub 2007 May 8.
Involvement of the right inferior parietal area in action awareness was investigated while taking into account differences in the conscious experiences of one's own actions; especially, the awareness that an intended action is consistent with movement consequences and the awareness of the authorship of the action (i.e., the sense of agency). We hypothesized that these experiences are both associated with processes implemented in inferior parietal cortex, specifically, right angular gyrus (Ag). Two blood-oxygenation-level-dependent functional magnetic resonance imaging studies employed a novel delayed visual feedback technique to distinguish the neural correlates of these 2 forms of action awareness. We showed that right Ag is associated with both awareness of discrepancy between intended and movement consequences and awareness of action authorship. We propose that this region is involved in higher-order aspects of motor control that allows one to consciously access different aspects of one's own actions. Specifically, this region processes discrepancies between intended action and movement consequences in such a way that these will be consciously detected by the subject. This joint processing is at the core of the various experiences one uses to interpret an action.
在考虑自身动作的意识体验差异的情况下，研究了右下顶叶区域在动作意识中的作用；特别是，对预期动作与动作结果一致性的意识以及对动作主体的意识（即动作感）。我们假设这些体验都与下顶叶皮层，特别是右角回（Ag）中执行的过程相关。两项基于血氧水平依赖性功能磁共振成像的研究采用了一种新颖的延迟视觉反馈技术来区分这两种动作意识形式的神经关联。我们发现右角回与预期动作和动作结果之间差异的意识以及动作主体意识都有关联。我们提出该区域参与了运动控制的高阶方面，使个体能够有意识地获取自身动作的不同方面。具体而言，该区域以一种能让主体有意识地检测到这些差异的方式处理预期动作和动作结果之间的差异。这种联合处理是个体用于解释动作的各种体验的核心。
