气候变化领域集成服务门户(CCPortal): Joint encoding of facial identity, orientation, gaze, and expression in the middle dorsal face area

CCPortal

DOI	10.1073/pnas.2108283118
	Joint encoding of facial identity, orientation, gaze, and expression in the middle dorsal face area
	Yang Z.; Freiwald W.A.
发表日期	2021
ISSN	0027-8424
卷号	118 期号:33
英文摘要	The last two decades have established that a network of face-selective areas in the temporal lobe of macaque monkeys supports the visual processing of faces. Each area within the network contains a large fraction of face-selective cells. And each area encodes facial identity and head orientation differently. A recent brain-imaging study discovered an area outside of this network selective for naturalistic facial motion, the middle dorsal (MD) face area. This finding offers the opportunity to determine whether coding principles revealed inside the core network would generalize to face areas outside the core network. We investigated the encoding of static faces and objects, facial identity, and head orientation, dimensions which had been studied in multiple areas of the core face-processing network before, as well as facial expressions and gaze. We found that MD populations form a face-selective cluster with a degree of selectivity comparable to that of areas in the core face-processing network. MD encodes facial identity robustly across changes in head orientation and expression, it encodes head orientation robustly against changes in identity and expression, and it encodes expression robustly across changes in identity and head orientation. These three dimensions are encoded in a separable manner. Furthermore, MD also encodes the direction of gaze in addition to head orientation. Thus, MD encodes both structural properties (identity) and changeable ones (expression and gaze) and thus provides information about another animal's direction of attention (head orientation and gaze). MD contains a heterogeneous population of cells that establish a multidimensional code for faces. © 2021 National Academy of Sciences. All rights reserved.
英文关键词	Face-processing systems; Facial expression; Facial identity; FMRI-targeted electrophysiology; Gaze
语种	英语
scopus关键词	article; attention; brain; controlled study; electrophysiology; facial recognition; gaze; head position; human; human experiment; motion; functional magnetic resonance imaging
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/238830
作者单位	Laboratory of Neural Systems, The Rockefeller University, New York, NY 10065, United States; The Center for Brains, Minds and Machines, Massachusetts Institute of Technology, Cambridge, MA 02139, United States
推荐引用方式 GB/T 7714	Yang Z.,Freiwald W.A.. Joint encoding of facial identity, orientation, gaze, and expression in the middle dorsal face area[J],2021,118(33).
APA	Yang Z.,&Freiwald W.A..(2021).Joint encoding of facial identity, orientation, gaze, and expression in the middle dorsal face area.Proceedings of the National Academy of Sciences of the United States of America,118(33).
MLA	Yang Z.,et al."Joint encoding of facial identity, orientation, gaze, and expression in the middle dorsal face area".Proceedings of the National Academy of Sciences of the United States of America 118.33(2021).