The repertoire and intentionality of gestural communication in wild chimpanzees

被引:55
|
作者
Roberts, Anna Ilona [1 ,2 ]
Roberts, Samuel George Bradley [1 ]
Vick, Sarah-Jane [3 ]
机构
[1] Univ Chester, Dept Psychol, Chester CH1 4BJ, Cheshire, England
[2] Budongo Conservat Field Stn, Masindi, Uganda
[3] Univ Stirling, Sch Nat Sci, Stirling FK9 4LA, Scotland
基金
英国经济与社会研究理事会;
关键词
Gestural communication; Gestural repertoire; Intentionality; Communicative persistence; Chimpanzee; Pan troglodytes; ELABORATION; PERSISTENCE; EVOLUTION; LANGUAGE; CALLS; HAND;
D O I
10.1007/s10071-013-0664-5
中图分类号
B84 [心理学]; C [社会科学总论]; Q98 [人类学];
学科分类号
03 ; 0303 ; 030303 ; 04 ; 0402 ;
摘要
A growing body of evidence suggests that human language may have emerged primarily in the gestural rather than vocal domain, and that studying gestural communication in great apes is crucial to understanding language evolution. Although manual and bodily gestures are considered distinct at a neural level, there has been very limited consideration of potential differences at a behavioural level. In this study, we conducted naturalistic observations of adult wild East African chimpanzees (Pan troglodytes schweinfurthii) in order to establish a repertoire of gestures, and examine intentionality of gesture production, use and comprehension, comparing across manual and bodily gestures. At the population level, 120 distinct gesture types were identified, consisting of 65 manual gestures and 55 bodily gestures. Both bodily and manual gestures were used intentionally and effectively to attain specific goals, by signallers who were sensitive to recipient attention. However, manual gestures differed from bodily gestures in terms of communicative persistence, indicating a qualitatively different form of behavioural flexibility in achieving goals. Both repertoire size and frequency of manual gesturing were more affiliative than bodily gestures, while bodily gestures were more antagonistic. These results indicate that manual gestures may have played a significant role in the emergence of increased flexibility in great ape communication and social bonding.
引用
收藏
页码:317 / 336
页数:20
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