| Project/Area Number |
14510093
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
実験系心理学
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| Research Institution | TOKYO INSTITUTE OF TECHNOLOGY |
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Principal Investigator |
YAMAGISHI Kimihiko TOKYO INSTITUTE OF TECHNOLOGY, Graduate School of Decision Science of Technology, Associate Professor, 大学院・社会理工学研究科, 助教授 (70286136)
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| Co-Investigator(Kenkyū-buntansha) |
NAKAGAWA Masanori TOKYO INSTITUTE OF TECHNOLOGY, Graduate School of Decision Science of Technology, Professor, 大学院・社会理工学研究科, 教授 (40155685)
MUTA Hiromitsu TOKYO INSTITUTE OF TECHNOLOGY, Graduate School of Decision Science of Technology, Professor, 大学院・社会理工学研究科, 教授 (70090925)
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| Project Period (FY) |
2002 – 2003
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| Project Status |
Completed (Fiscal Year 2003)
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| Budget Amount *help |
¥2,900,000 (Direct Cost: ¥2,900,000)
Fiscal Year 2003: ¥1,500,000 (Direct Cost: ¥1,500,000)
Fiscal Year 2002: ¥1,400,000 (Direct Cost: ¥1,400,000)
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| Keywords | Probability / Decision Making / Neural Networks / 意志決定 / 主観確率 / 選択 / 不確実下の決定 / 認知過程 / 言語確率 |
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| Research Abstract |
The directionality of verbal uncertainty expressions, or verbal probabilities, was investigated. A "positive" directionality draws the focus of communication toward the prospect that an uncertain event may materialize in the future. Conversely, a "negative" directionality draws the focus more toward expecting that an uncertain event may not materialize. Our experiments confirmed the existence of directionality in Japanese terms of uncertainty. Moreover, in out study of binary choice between gambles with verbal probabilities, we found a new kind of preference reversal phenomenon. Explanatory models were developed.
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