Temporal rules of vocal exchanges in primates

Research Project

Project/Area Number	22700286
Research Category	Grant-in-Aid for Young Scientists (B)
Allocation Type	Single-year Grants
Research Field	Cognitive science
Research Institution	Kyoto University
Principal Investigator	IZUMI Akihiro 京都大学, 霊長類研究所, 准教授 (20346068)
Project Period (FY)	2010-04-01 – 2014-03-31
Project Status	Completed (Fiscal Year 2013)
Budget Amount *help	¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000) Fiscal Year 2013: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000) Fiscal Year 2012: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000) Fiscal Year 2011: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000) Fiscal Year 2010: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Keywords	行動学 / 進化 / 動物 / 霊長類 / 音声
Research Abstract	To examine the effects of individual trait and the vocal temporal properties in marmosets' vocal exchanges, I conducted trait ratings of captive marmosets. A vocal turn-taking system was created which could playback a recorded vocalization in response to a marmoset's vocalization. With the turn-taking system, marmosets showed vocalizations similar to the natural vocal exchanges when the temporal delay of the playback stimuli (i.e. played back as a response vocalizations) was in the typical value of natural vocal exchanges. The system will be useful for further study to investigate vocal exchanges of marmosets.