2013 Fiscal Year Annual Research Report
身体動作の同調行動に関する比較認知科学研究： ヒト、チンパンジー、イルカを対象に
| Project/Area Number |
12J04525
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| Research Institution | Kyoto University |
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Principal Investigator |
ユ リラ 京都大学, 霊長類研究所, 特別研究員(DC1)
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| Keywords | 比較認知科学 / チンパンジー / 同調行動 / タッピング課題 |
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| Research Abstract |
In this year, I reported a case of bird consumption in one chimpanzee at Bossou, Guinea in the journal of Pan Africa News. Chimpanzees at Bossou have shown low rates of meat consumption compared to other chimpanzee communities. Thus the current observation added an important new case of food repertoire at this research site.
In this year, I continued experimental studies in chimpanzees to understand evolutionary origins of behavioral coordination in humans. I examined whether synchronous movement occurs between two chimpanzees while they produce rhythmic tapping movements under face-to-face setup. In this setup, auditory and visual information of the other' s movement was available. Two pairs of mother and her biological offspring chimpanzees and one pair of non-kin adult female chimpanzees participated in this experiment. Preliminary results showed that all the three chimpanzee pairs produced in-phase synchronous tapping movement with their partner. This result was comparable to the previous experiments conducted in side-by-side setting. In the side-by-side setup, information of the other' s movement was available only through auditory exchange. Taken together, obtained results suggest that significant interactional synchrony occurs when chimpanzees see each other and hear the sounds of their partner' s movement.
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| Current Status of Research Progress |
Current Status of Research Progress
2: Research has progressed on the whole more than it was originally planned.
Reason
本年度は新たな実験場面、お互いに向かい合った状況下(face-to-face setup)、でも同調行動を詳細に分析するためのリズミカルな運動を安定的に実験室で出すことができた。そして、二個体のチンパンジーの間で同調行動について分析した。その結果、横並びの状況下(side-by-side setup)で行った場合にくらべて、同調が生じやすいことを明らかにしつつある。したがって、本年度はおおむね順調に研究が進展していると思う。
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| Strategy for Future Research Activity |
ヒトとチンパンジーの対面場面下での実験を行う。ヒト実験者が意図的に相手のチンパンジーのタッピング行動に同調した場合、その行動にチンパンジーは気付くのかを分析する。さらに、ヒトでは同調行動が親和性を高める機能を持っていると報告されているが、チンパンジーやイルカにもこの社会的機能があるのかを明らかにする。
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