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2023 Fiscal Year Final Research Report

Ontogeny and phylogeny of the acquisition of time

Planned Research

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Project AreaChronogenesis: how the mind generates time
Project/Area Number 18H05524
Research Category

Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)

Allocation TypeSingle-year Grants
Review Section Complex systems
Research InstitutionKyoto University

Principal Investigator

Hirata Satoshi  京都大学, 野生動物研究センター, 教授 (80396225)

Co-Investigator(Kenkyū-buntansha) 上原 泉  お茶の水女子大学, 人間発達教育科学研究所, 教授 (80373059)
酒井 裕  玉川大学, 脳科学研究所, 教授 (70323376)
Project Period (FY) 2018-06-29 – 2023-03-31
Keywords比較認知科学 / 発達心理学 / 数理脳科学
Outline of Final Research Achievements

The purpose of the project was to clarify why and by what mechanism the mind generates time, through the investigation of its ontogeny (human postnatal development) and phylogeny (biological evolution). By inputting sentence data composed by people of various ages (infants to adults) into an artificial neural circuit that had learned a large amount of time-related labeled sentence data, we succeeded in visualizing the differences in age. In addition, while a reinforcement learning model incorporating temporal features designed for humans can be used to explain the behavior of chimpanzees in cognitive tasks, it was also found that there are marked differences in the latency of auditory evoked potentials in humans, chimpanzees, various monkey species, and horses.

Free Research Field

情報学

Academic Significance and Societal Importance of the Research Achievements

本研究の一連の成果を総合的に捉えると、時間は変化をとらえて将来を予測するための媒体であるという適応的意義があり、ヒトはその時間窓を伸長させることで環境をより深く捉えることができるようになったと考えられる。そうした観点について、一般向け書籍「時間はなぜあるのか:チンパンジー学者と言語学者の探険」(ミネルヴァ書房、2022年)を刊行し、時間の適応的意義も含めた議論を展開した。また、テレビ番組(NHKヒューマニエンス)に出演し、研究成果の概説をした。

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Published: 2025-01-30  

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