Action relationships concatenate representations of separate objects in the ventral visual system.
Action relationships concatenate representations of separate objects in the ventral visual system.
复制标题
动作关系将腹侧视觉系统中单独物体的表示连接起来。
DOI：
10.1016/j.neuroimage.2010.05.044
复制
发表时间：
2010
期刊：
影响因子：
5.7
通讯作者：
Roberts KL
中科院分区：
文献类型：
--
作者：
Roberts KL
真实的世界中的物体是在它们相互作用的上下文中遇到的。虽然我们知道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处理的知之甚少。我们使用功能性磁共振成像（fMRI）检查了成对物体的神经反应。放置在一起相互作用的物体会激活双侧枕外侧复合体（LOC）和梭状回。无论对象是否得到照料，都会发生这种情况。在实验中，无论物体是否形成熟悉或不熟悉的动作对，都发现了为动作定位物体的效果。在梭状回激活被发现时，物体形成一个熟悉的行动对。没有明显的变化，在视觉（运动前区和顶叶）地区，这可能反映了电机为基础的反应对象。这些结果表明，腹侧流区域对物体之间的相互作用以及单个物体的感官和功能特性做出反应。
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.