Identification of vocalizers by pant hoots,pant grunts and screams in a chimpanzee |
| |
Authors: | Kojima Shozo Izumi Akihiro Ceugniet Miyuki |
| |
Institution: | (1) Department of Behavioral and Brain Sciences, Primate Research Institute, Kyoto University, Kanrin, Inuyama, Aichi 484-8506, Japan |
| |
Abstract: | Identification of vocalizers was examined using an auditory-visual matching-to-sample task with a female chimpanzee. She succeeded
in selecting the picture of the vocalizer in response to various types of vocalizations: pant hoots, pant grunts, and screams.
When pant hoots by two chimpanzees were presented as a "duet", she could identify both of the vocalizers. These results suggest
that researchers have underestimated the capability of vocalizer identification in chimpanzees. The chimpanzee correctly chose
her own pictures in response to her vocalizations only by exclusion, and she did not show vocal self-recognition. The effect
of acoustical modification (pitch shift and filtration) on the performance suggested that pitch is an important cue for the
vocalizer identification. |
| |
Keywords: | Chimpanzee Vocalization Individual recognition |
本文献已被 PubMed SpringerLink 等数据库收录! |
|