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2019 Fiscal Year Final Research Report

Neural mechanism of affective response with Shitsukan perception

Planned Research

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Project AreaUnderstanding human recognition of material properties for innovation in SHITSUKAN science and technology
Project/Area Number 15H05917
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 InstitutionNational Institutes for Quantum and Radiological Science and Technology

Principal Investigator

Minamimoto Takafumi  国立研究開発法人量子科学技術研究開発機構, 放射線医学総合研究所 脳機能イメージング研究部, グループリーダー(定常) (50506813)

Co-Investigator(Kenkyū-buntansha) 本田 学  国立研究開発法人国立精神・神経医療研究センター, 神経研究所 疾病研究第七部, 部長 (40321608)
鯉田 孝和  豊橋技術科学大学, エレクトロニクス先端融合研究所, 准教授 (10455222)
Project Period (FY) 2015-06-29 – 2020-03-31
Keywords質感 / 価値判断 / DREADDs / サル / エンリッチメント
Outline of Final Research Achievements

We studied the neural mechanism of affective/motivational responses, especially those underlying neural circuits and value-coding mechanisms. We developed a novel method for dissecting specific neural circuits in behaving monkeys, identifying the specific role of distinct front-subcortical circuits in value-based decision-making. Using this method, we also identified the neural circuit for value judgement and emotional processing. Regarding the identification of texture attributes that affect specific emotional responses, we found a life-prolonging effect of the complexity of environmental information containing natural environmental sounds recorded in tropical rain forests and the effect is mediated by reduction of social stress. We also characterized asymmetric information processing in dark/brightness which might be involved in the preference of brightness and vividness.

Free Research Field

神経科学

Academic Significance and Societal Importance of the Research Achievements

「質感の知覚から価値・情動への変換」が脳のどこで行われているか?の「地図」(脳回路)が分かり、さらに地図上の道を「一時通行止め」にする手法(経路選択操作)が確立できた。これらを組み合わせることで、今後それぞれの道でどのような「荷物の積み下ろし」がされているか?(情報変換プロセス)という、感性的質感認知の重要かつ本質的な仕組みについて、その理解が一層進むものと期待される。さらに研究成果の応用として “超高周波音響”が脳の報酬系を活性化させる作用に着目し、うつ病の快楽消失などの症状を改善するための治療プロトコルを開発し、臨床応用への道を拓いた。

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Published: 2021-02-19  

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