File(s) not publicly available
Multimodal concomitants of manual gesture by chimpanzees: influence of food size and distance
journal contribution
posted on 2023-06-07, 17:59 authored by David LeavensDavid Leavens, William D HopkinsIt is well-established that chimpanzees vocalize more in the presence of relatively large amounts of food. The present study administered four trials in random order to each of 20 chimpanzees: (1) small piece of fruit, placed near to cage (~30 cm.), (2) large piece of fruit, placed near to cage, (3) small piece of fruit, placed far from cage (~130 cm.), and (4) large piece of fruit, placed far from cage. On arrival of an experimenter, the chimpanzees not only vocalized more in the presence of the large piece of fruit, confirming previous studies' findings, but also exhibited more multimodal behavior (vocalizations, manual gestures, and gaze alternation between the food and the experimenter), which extends previous research. More gaze alternation was exhibited to food placed more peripherally. Arousal may be indexed in this species by the number of modalities in which they communicate.
History
Publication status
- Published
Journal
GestureISSN
1568-1475Issue
1-2Volume
5Page range
75-90Pages
16.0Department affiliated with
- Psychology Publications
Full text available
- No
Peer reviewed?
- Yes