Efficient search for a face by chimpanzees (Pan troglodytes).

ABSTRACT: The face is quite an important stimulus category for human and nonhuman primates in their social lives. Recent advances in comparative-cognitive research clearly indicate that chimpanzees and humans process faces in a special manner; that is, using holistic or configural processing. Both species exhibit the face-inversion effect in which the inverted presentation of a face deteriorates their perception and recognition. Furthermore, recent studies have shown that humans detect human faces among non-facial objects rapidly. We report that chimpanzees detected chimpanzee faces among non-facial objects quite efficiently. This efficient search was not limited to own-species faces. They also found human adult and baby faces--but not monkey faces--efficiently. Additional testing showed that a fron

SUBMITTER: Tomonaga M 

PROVIDER: S-EPMC4504146 | biostudies-literature | 2015 Jul

REPOSITORIES: biostudies-literature