2013 Fiscal Year Final Research Report
Effects of emotional information in trials on lay-judges' decision
| Project/Area Number |
23330198
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Social psychology
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| Research Institution | Keio University |
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Principal Investigator |
ITOH Yuji 慶應義塾大学, 文学部, 教授 (70151545)
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| Co-Investigator(Kenkyū-buntansha) |
NAKA Makiko 北海道大学, 文学研究科, 教授 (00172255)
ITSUKUSHIMA Yukio 日本大学, 文理学部, 教授 (20147698)
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| Co-Investigator(Renkei-kenkyūsha) |
IBUSUKI Makoto 成城大学, 法学部, 教授 (70211753)
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| Project Period (FY) |
2011-04-01 – 2014-03-31
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| Keywords | 裁判員 / 感情 / バイアス / 被害者の意見陳述 / 事実認定判断 |
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| Research Abstract |
In courtrooms, lay judges are exposed to a lot of inflammatory information. information. We examined if lay judges are influenced by their emotion and make biased decisions, and sought means to prevent such influences with mock lay-judge experiments. Results show that lay judges' emotions such as anger and sympathy correlates with guiltiness judgment. The possibility that lay judges' decisions are influenced by their emotions is shown. It is also shown that we could suppress the effects of emotion by the means like instruction on judicial procedures and/or principle of decision making in the courtroom and having the delay between the trials and decision.
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