Temporal adjustment of short calls according to a partner during vocal turn-taking in Japanese macaques.

ABSTRACT: Turn-taking is a common feature in human speech, and is also seen in the communication of other primate species. However, evidence of turn-taking in vocal exchanges within a short time frame is still scarce in nonhuman primates. This study investigated whether dynamic adjustment during turn-taking in short calls exists in Japanese macaques Macaca fuscata. We observed exchanges of short calls such as grunts, girneys, and short, low coos during social interactions in a free-ranging group of Japanese macaques. We found that the median gap between the turns of two callers was 250 ms. Call intervals varied among individuals, suggesting that call intervals were not fixed among individuals. Solo call intervals were shorter than call intervals interrupted by responses from partners (i.e., exchange

SUBMITTER: Katsu N 

PROVIDER: S-EPMC6347064 | biostudies-literature | 2019 Feb

REPOSITORIES: biostudies-literature