Lobmaier Janek S, Klaver Peter, Loenneker Thomas, Martin Ernst, Mast Fred W
Department of Psychology, University of Zurich, Zurich, Switzerland.
Neuroreport. 2008 Feb 12;19(3):287-91. doi: 10.1097/WNR.0b013e3282f556fe.
We explored the processing mechanisms of featural and configural face information using event-related functional magnetic resonance imaging. Featural information describes the information contained in the facial parts; configural information conveys the spatial interrelationship between parts. In a delayed matching-to-sample task, participants decided whether an intact test face matched a precedent scrambled or blurred cue face. Scrambled faces primarily contain featural information whereas blurred faces preserve configural information. Scrambled cue faces evoked enhanced activation in the left fusiform gyrus, left parietal lobe, and left lingual gyrus when viewing intact test faces. Following blurred cue faces, test faces enhanced activation bilaterally in the middle temporal gyrus. The results suggest that featural and configural information is processed by following distinct neural pathways.
我们使用事件相关功能磁共振成像技术探究了面部特征信息和整体结构信息的处理机制。面部特征信息描述的是面部各个部分所包含的信息;整体结构信息传达的是各部分之间的空间相互关系。在一个延迟样本匹配任务中,参与者要判断一张完整的测试面孔是否与之前呈现的打乱或模糊的提示面孔相匹配。打乱的面孔主要包含特征信息,而模糊的面孔则保留了整体结构信息。当观看完整的测试面孔时,打乱的提示面孔在左侧梭状回、左侧顶叶和左侧舌回引发了增强的激活。在呈现模糊的提示面孔之后,测试面孔在双侧颞中回引发了增强的激活。结果表明,面部特征信息和整体结构信息是通过不同的神经通路进行处理的。