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Intentional communication by chimpanzees: a cross-sectional study of the use of referential gestures
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posted on 2023-06-07, 18:23 authored by David LeavensDavid Leavens, W. D. HopkinsThis study describes the use of referential gestures with concomitant gaze orienting behavior to both distal food objects and communicative interactants by 115 chimpanzees, ranging from 3 to 56 years of age. Gaze alternation between a banana and an experimenter was significantly associated with vocal and gestural communication. Pointing was the most common gesture elicited; 47 subjects pointed with the whole hand, whereas 6 subjects pointed with index fingers. Thus, communicative pointing is commonly used by laboratory chimpanzees, without explicit training to point, language training, or home rearing. Juveniles exhibited striking decrements in their propensity to communicate with adult male experimenters compared with older chimpanzees. Significantly fewer mother-reared chimpanzees exhibited gaze alternation compared with nursery-reared chimpanzees.
History
Publication status
- Published
Journal
Developmental PsychologyISSN
00121649Publisher
Developmental PsychologyIssue
5Volume
34Page range
813-822ISBN
0012-1649Department affiliated with
- Psychology Publications
Full text available
- No
Peer reviewed?
- Yes
Legacy Posted Date
2012-02-06Usage metrics
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