Ishai Alumit
Institute of Neuroradiology, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland.
Neuroimage. 2008 Apr 1;40(2):415-419. doi: 10.1016/j.neuroimage.2007.10.040. Epub 2007 Nov 7.
Face perception elicits activation within a distributed cortical network in the human brain. The network includes visual ("core") regions, which process invariant facial features, as well as limbic and prefrontal ("extended") regions that process changeable aspects of faces. Analysis of effective connectivity reveals that the major entry node in the "face network" is the lateral fusiform gyrus and that the functional coupling between the core and the extended systems is content-dependent. A model for face perception is proposed, in which the flow of information through the network is shaped by cognitive demands.
面部感知会引发人脑中一个分布式皮层网络的激活。该网络包括处理不变面部特征的视觉（“核心”）区域，以及处理面部可变方面的边缘和前额叶（“扩展”）区域。有效连接性分析表明，“面部网络”中的主要输入节点是外侧梭状回，并且核心系统与扩展系统之间的功能耦合取决于内容。本文提出了一个面部感知模型，其中通过该网络的信息流由认知需求塑造。
