Chimpanzees (Pan troglodytes) detect strange body parts: an eye-tracking study.

ABSTRACT: This study investigated chimpanzee body representation by testing whether chimpanzees detect strangeness in body parts. We tested six chimpanzees with edited chimpanzee body pictures in eye-tracking tasks. The target body parts were arms or legs. For either target, there were four conditions: "normal" condition as control, where all bodies were normal; "misplaced" condition, where one arm or one leg was misplaced to an incorrect body location in each picture; "replaced by a chimpanzee part" condition, where one arm or one leg was replaced by a chimpanzee leg or arm, respectively, in its original place in each picture; and "replaced by a human part" condition, where one arm or one leg was replaced by a human arm or leg in each picture. Compared to the looking times toward the normal parts,

SUBMITTER: Gao J 

PROVIDER: S-EPMC9334416 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature