Brain and Behavioural Sciences, School of Psychology, University of Birmingham, UK.
Neuroimage. 2010 Oct 1;52(4):1541-8. doi: 10.1016/j.neuroimage.2010.05.044. Epub 2010 May 24.
Objects in the real world are encountered in contexts where they interact together. Though it is known that neurons in the ventral visual stream mediate the recognition of individual objects, we have minimal knowledge of how multiple objects are processed at a neural level. We examined the neural response to pairs of objects using functional magnetic resonance imaging (fMRI). Objects positioned to interact together activated bilateral lateral occipital complex (LOC) and fusiform gyrus. This occurred irrespective of whether the objects were attended. In LOC, the effect of positioning objects for action was found regardless of whether the objects formed a familiar or unfamiliar action pair. In the fusiform gyrus activation was found when objects formed a familiar action pair. No changes were apparent in visuomotor (premotor and parietal) regions which might reflect a motor-based response to objects. These results show that ventral-stream regions respond to the interaction between objects, as well as to the sensory and functional properties of individual objects.
现实世界中的物体是在相互作用的环境中被遇到的。尽管已知腹侧视觉流中的神经元介导了对单个物体的识别，但我们对多个物体在神经水平上是如何被处理的知之甚少。我们使用功能磁共振成像（fMRI）研究了对物体对的神经反应。被定位为相互作用的物体激活了双侧外侧枕叶复合体（LOC）和梭状回。这与物体是否被注意无关。在 LOC 中，无论物体是否形成了熟悉或不熟悉的动作对，定位物体进行动作的效果都会出现。当物体形成熟悉的动作对时，在梭状回中会发现激活。在可能反映对物体的基于运动的反应的运动视觉（运动前皮质和顶叶）区域中没有明显的变化。这些结果表明，腹侧流区域不仅对物体之间的相互作用有反应，而且对单个物体的感觉和功能特性也有反应。
