The neural representation of personally familiar and unfamiliar faces in the distributed system for face perception.
The neural representation of personally familiar and unfamiliar faces in the distributed system for face perception.
复制标题
DOI：
10.1038/s41598-017-12559-1
复制
发表时间：
2017-09-25
影响因子：
4.6
通讯作者：
Gobbini MI
中科院分区：
文献类型：
--
作者：
Visconti di Oleggio Castello M;Halchenko YO;Guntupalli JS;Gors JD;Gobbini MI
熟悉的面孔比不熟悉的面孔处理得更稳健、更有效。人脸处理系统包括一个分析人脸视觉外观的核心系统和一个用于检索人的知识和其他非视觉信息的扩展系统。我们应用多变量模式分析的功能磁共振成像数据调查方面的熟悉度，所有熟悉的身份和信息，区分特定的面孔身份彼此共享。独立于身份的熟悉信息和面孔身份都可以在核心系统和扩展系统的重叠区域中解码。代表性相似性分析表明，这两个系统之间的明显区别和细分的核心系统腹侧，背侧和前部组件。这项研究提供的证据表明，在扩展系统的活动进行个人身份和个人熟悉的信息，同时澄清和扩展的核心系统的组织面孔知觉。
Personally familiar faces are processed more robustly and efficiently than unfamiliar faces. The human face processing system comprises a core system that analyzes the visual appearance of faces and an extended system for the retrieval of person-knowledge and other nonvisual information. We applied multivariate pattern analysis to fMRI data to investigate aspects of familiarity that are shared by all familiar identities and information that distinguishes specific face identities from each other. Both identity-independent familiarity information and face identity could be decoded in an overlapping set of areas in the core and extended systems. Representational similarity analysis revealed a clear distinction between the two systems and a subdivision of the core system into ventral, dorsal and anterior components. This study provides evidence that activity in the extended system carries information about both individual identities and personal familiarity, while clarifying and extending the organization of the core system for face perception.