Hierarchical object combination and tool use in the great apes and human children.

ABSTRACT: Object manipulation can be used as a comparative scale of cognitive development among primates, including humans. Combinatory object manipulation is a precursor of tool-using behavior that indicates material intelligence in primates. However, developmental data on it regarding the great apes other than chimpanzees is insufficient. We conducted a longitudinal investigation of humans and chimpanzees as well as a cross-sectional examination of other great-ape infants (two bonobos, three gorillas, and four orangutans) in captive settings by using two kinds of tasks that required either inserting or stacking combinatory action. The four species of great apes and humans demonstrated both types of combinatory object manipulation during infancy. However, the order of development in different types

SUBMITTER: Hayashi M 

PROVIDER: S-EPMC9463204 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature