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Cross-diagnostic investigation of neural basis of delusion by next-generation connectivity analysis

Research Project

Project/Area Number 17H04248
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Psychiatric science
Research InstitutionKyoto University

Principal Investigator

MIYATA Jun  京都大学, 医学研究科, 講師 (90549099)

Co-Investigator(Kenkyū-buntansha) 岡田 知久  京都大学, 医学研究科, 特定准教授 (30321607)
林 拓也  国立研究開発法人理化学研究所, 生命機能科学研究センター, チームリーダー (50372115)
小村 豊  京都大学, こころの未来研究センター, 教授 (80357029)
Project Period (FY) 2017-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥16,640,000 (Direct Cost: ¥12,800,000、Indirect Cost: ¥3,840,000)
Fiscal Year 2020: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2019: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2018: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2017: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Keywords妄想 / salience / confidence / 訂正不能性 / 結合性 / maintenance / 統合失調症 / MRI / 機能的MRI / 機能的結合性 / 拡散MRI / 構造的結合性 / Salience / Jumping to conclusions / Fixel-based analysis / NODDI / Confidence / Maintenance
Outline of Final Research Achievements

This study aimed to reveal neuro-cognitive basis of delusion by 3-factor model (salience, confidence, maintenance), and found the following findings.
Functional connectivity of salience-related networks were correlated with 1) delusion severity and 2) jumping to conclusions bias which is related to delusion formation. 3) Subjective salience of schizophrenia had modality-specificity with functional networks. 4) Association between accuracy of confidence during visual discrimination and functional connectivity was different between schizophrenia patients and healthy controls.
These findings contributed to clarification of functional / structural neural correlates of delusion.

Academic Significance and Societal Importance of the Research Achievements

妄想を呈する代表的疾患である統合失調症は、平成29年度の患者調査では入院者数が約15万4千人と、全疾患による入院者数約131万人に占める割合は最多であり、社会的損失は甚大である。妄想はしばしば既存の薬物療法に抵抗性を示し、また妄想の存在は自殺の重要なリスクファクターである。
本研究課題は妄想がいかに形成され、確信され、維持されるのかというメカニズムに焦点を当て、その認知神経基盤を明らかにしたことで、妄想の新規治療介入法の開発へとつなゲルことが出来、学術的・社会的意義は大きい。

Report

(5 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • Research Products

    (18 results)

All 2020 2019 2018 2017 Other

All Int'l Joint Research (3 results) Journal Article (5 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 5 results,  Open Access: 2 results) Presentation (9 results) (of which Int'l Joint Research: 8 results,  Invited: 1 results) Funded Workshop (1 results)

  • [Int'l Joint Research] University of British Columbia(カナダ)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] King's College London(英国)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] Johns Hopkins University(米国)

    • Related Report
      2018 Annual Research Report
  • [Journal Article] Overlapping but Asymmetrical Relationships Between Schizophrenia and Autism Revealed by Brain Connectivity.2020

    • Author(s)
      Yujiro Yoshihara, Giuseppe Lisi, Noriaki Yahata, Junya Fujino, Yukiko Matsumoto, Jun Miyata, Gen-Ichi Sugihara, Shin-Ichi Urayama, Manabu Kubota et al.
    • Journal Title

      Schizophrenia Bulletin

      Volume: 4 Issue: 5 Pages: 1210-1218

    • DOI

      10.1093/schbul/sbaa021

    • Related Report
      2020 Annual Research Report 2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Enhanced Carbonyl Stress and Disrupted White Matter Integrity in Schizophrenia.2020

    • Author(s)
      Son S, Arai M, Toriumi K, Mizuta H, Miyata J, Hayashi T, Aso T, Itokawa M, Murai T.
    • Journal Title

      Schizophr Res

      Volume: 223 Pages: 242-248

    • DOI

      10.1016/j.schres.2020.08.007

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Atypical spatial frequency dependence of visual metacognition among schizophrenia patients2020

    • Author(s)
      Koizumi Ai、Hori Tomoki、Maniscalco Brian、Hayase Makoto、Mishima Ryou、Kawashima Takahiko、Miyata Jun、Aso Toshihiko、Lau Hakwan、Takahashi Hidehiko、Amano Kaoru
    • Journal Title

      NeuroImage: Clinical

      Volume: 27 Pages: 102296-102296

    • DOI

      10.1016/j.nicl.2020.102296

    • NAID

      120006949375

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Toward Integrated Understanding of Salience in Psychosis2019

    • Author(s)
      Miyata J
    • Journal Title

      Neurobiology of Disease

      Volume: 131 Pages: 104414-104414

    • DOI

      10.1016/j.nbd.2019.03.002

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effect of phase-encoding direction on group analysis of resting-state functional magnetic resonance imaging2018

    • Author(s)
      Mori Yasuo、Miyata Jun、Isobe Masanori、Son Shuraku、Yoshihara Yujiro、Aso Toshihiko、Kouchiyama Takanori、Murai Toshiya、Takahashi Hidehiko
    • Journal Title

      Psychiatry and Clinical Neurosciences

      Volume: 72 Issue: 9 Pages: 683-691

    • DOI

      10.1111/pcn.12677

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Presentation] Extending aberrant salience hypothesis of schizophrenia2020

    • Author(s)
      Jun Miyata
    • Organizer
      日本神経科学大会2020
    • Related Report
      2020 Annual Research Report
  • [Presentation] Is jumping to conclusions associated with frequent "jumping" to salience-related functional brain states?2019

    • Author(s)
      Jun Miyata et al
    • Organizer
      Schizophrenia International Research Society
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Conservative & hasty decision styles are associated with static & dynamic functional connectivity in healthy & schizophrenia people2019

    • Author(s)
      Jun Miyata et al
    • Organizer
      Society for Neuroscience
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Integrated salience in psychosis and delusion2019

    • Author(s)
      Jun Miyata
    • Organizer
      10th Takeda Schience Foundation Symposium on PharmaSciences
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Is jumping to conclusions associated with frequent "jumping" to salience-related functional brain states?2019

    • Author(s)
      Jun Miyata et al,
    • Organizer
      Schizophreania International Research Society 2019, Orlando, Florida, USA
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Neural correlates of conservatism and jumping to conclusions biases2018

    • Author(s)
      Jun Miyata et al.
    • Organizer
      Schizophreania International Research Society 2018, Florence, Italy
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Connectivity study of aberrant salience and delusion in schizophrenia2018

    • Author(s)
      Jun Miyata et al,
    • Organizer
      International Consortium on Hallucination Research 2018 Kyoto
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Neural correlates of conservatism and jumping to conclusions biases2018

    • Author(s)
      宮田 淳
    • Organizer
      Schizophrenia International Research Society
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Two network model of aberrant salience in schizophrenia2017

    • Author(s)
      宮田 淳
    • Organizer
      Society for Neuroscience 2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Funded Workshop] International Consortium on Hallucination Research 20182018

    • Related Report
      2018 Annual Research Report

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Published: 2017-04-28   Modified: 2022-01-27  

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