Development of combinatory manipulation in chimpanzee infants (Pan troglodytes) (original) (raw)
Abstract
I made systematic observations of three infant chimpanzees aged 2–4 years, who participated in a series of diagnostic tests of combinatory manipulation. The tasks were stacking blocks, seriating nesting cups, and inserting an object into the corresponding hole in a plate or a box. These tasks were originally devised for developmental diagnosis of human infants. The chimpanzee infants displayed combinatory manipulation comparable to that of 1-year-old human infants. Common motor characteristics were observed across the tasks, namely “repetition” of actions, “adjustment” of actions, “reversal” of actions, and “shifts” of attention. Humans and chimpanzees share these actions when manipulating multiple objects to complete a task. Repetition, adjustment, and reversal of actions and shifts of attention underlie higher levels of cognition common to both species.
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Authors and Affiliations
- School of Human Cultures, The University of Shiga Prefecture, Hassakacho 2500, Hikone, Shiga 522-8533, Japan
Hideko Takeshita
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Accepted after revision: 5 May 2001
Electronic Publication
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Takeshita, H. Development of combinatory manipulation in chimpanzee infants (Pan troglodytes).Anim.Cogn. 4, 335–345 (2001). https://doi.org/10.1007/s100710100089
- Received: 11 December 2000
- Published: 11 July 2001
- Issue date: November 2001
- DOI: https://doi.org/10.1007/s100710100089