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A neuroimaging study probing the pathology of auditory hallucination

Research Project

Project/Area Number 15K15428
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Psychiatric science
Research InstitutionDokkyo Medical University (2016-2018)
Hamamatsu University School of Medicine (2015)

Principal Investigator

MATSUO Kayako  獨協医科大学, 医学部, 准教授 (70399509)

Co-Investigator(Kenkyū-buntansha) 鈴木 勝昭  浜松医科大学, 医学部, 准教授 (00285040)
高貝 就  浜松医科大学, 医学部, 特任教授 (10447807)
涌澤 圭介  東北大学, 加齢医学研究所, 非常勤講師 (30645239)
竹林 淳和  浜松医科大学, 医学部附属病院, 講師 (50397428)
Project Period (FY) 2015-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords統合失調症 / 幻聴 / fMRI / 拡散強調画像 / 構造画像 / MRI画像 / MRI / 神経イメージング / モーフォメトリー / 精神疾患
Outline of Final Research Achievements

We investigated auditory hallucination of schizophrenia using a combination of MRI high technologies comparing 4 patients with 8 controls. We used diffusion spectrum imaging to measure the auditory radiation, T1-weighted images to estimate the gray matter volume in Heschl’s gyrus and task fMRI with auditory stimulations to evaluate activities in the primary auditory cortex. Our original hypothesis stated a “fiber first” theory: decrease in indices of the auditory radiation and gray matter volume in Heschl’s gyrus but aberrant increase in activation in the primary auditory cortex. However, results indicated a “cortex first” pathology: decrease in indices of activation and gray matter volume but aberrant increase in the index of the auditory radiation. The findings suggested that patients with auditory hallucination might first have a functional decline and an atrophy in the cortex and then the auditory radiation suffered an out-of-control condition with a loss of the regulation.

Academic Significance and Societal Importance of the Research Achievements

幻聴は統合失調症の最も特徴的な症状のひとつであり、幻聴の存在によって患者の社会機能は大きく阻害される。幻聴発生の病態が少しでも明らかになれば、その治療に役立てられる可能性がある。
本研究ではMRIの高度な手法を組み合わせている。特に聴放線の評価に拡散スペクトラム法を用いている。従来法の拡散テンソル画像法では聴放線のような微細な神経線維の検出は難しい。これに灰白質容積の解析とfMRIとを組み合わせ、神経線維と皮質の性状について統合的な理解を目指すところに本研究の特徴がある。
結果は予想に反し、皮質の機能低下が神経の制御不能をもたらしている可能性が示唆されるという、興味深いものであった。

Report

(5 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • 2015 Research-status Report
  • Research Products

    (13 results)

All 2018 2017 2016 2015 Other

All Int'l Joint Research (2 results) Presentation (11 results) (of which Int'l Joint Research: 6 results,  Invited: 1 results)

  • [Int'l Joint Research] 国立台湾大学(台湾)

    • Related Report
      2015 Research-status Report
  • [Int'l Joint Research]

    • Related Report
      2015 Research-status Report
  • [Presentation] Auditory system altered in auditory verbal hallucination studied using diffusion spectrum imaging, T1-weighted image and fMRI. Poster presentation2018

    • Author(s)
      Matsuo K
    • Organizer
      Joint Annual Meeting ISMRM-ESMRMB 2018 (International Society for Magnetic Resonance in Medicine)
    • Related Report
      2018 Annual Research Report
  • [Presentation] Auditory system altered in auditory verbal hallucination studied using diffusion spectrum imaging, T1-weighted image and fMRI2018

    • Author(s)
      Kayako Matsuo
    • Organizer
      Joint Annual Meeting ISMRM-ESMRMB 2018
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 幻聴のある患者の聴覚皮質と聴放線:fMRI、構造画像および拡散スペクトラム画像による灰白質と白質の計測2017

    • Author(s)
      松尾香弥子
    • Organizer
      第45回日本磁気共鳴医学会大会
    • Related Report
      2017 Research-status Report
  • [Presentation] 幻聴の神経基盤:MRI研究2017

    • Author(s)
      松尾香弥子
    • Organizer
      第39回日本生物学的精神医学会・第47回日本神経精神薬理学会合同年会
    • Related Report
      2017 Research-status Report
  • [Presentation] Altered auditory substrates observed in auditory verbal hallucination2017

    • Author(s)
      Kayako Matsuo
    • Organizer
      Neuroscience 2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Verbal working memory and schizophrenia: a key to understand the “core” symptoms2016

    • Author(s)
      Matsuo K
    • Organizer
      WPA International Congress of Psychiatry (WPAIC 2015)
    • Place of Presentation
      Taipei International Convention Center (TICC)
    • Year and Date
      2016-11-18
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Generalized fractional anisotropy of diffusion spectrum imaging and reaction time to investigate neurotransmission speed2016

    • Author(s)
      松尾香弥子、竹原康雄
    • Organizer
      第44回日本磁気共鳴医学会大会
    • Place of Presentation
      大宮ソニックシティホール(埼玉県さいたま市)
    • Year and Date
      2016-09-09
    • Related Report
      2016 Research-status Report
  • [Presentation] Behavioral response time as explained by a fiber-based analysis of generalized fractional anisotropy measured using diffusion spectrum imaging2016

    • Author(s)
      Kayako Matsuo, Yung-Chin Hsu, Yasuo Takehara, Wen-Yih Isaac Tseng, and Norio Mori
    • Organizer
      24th Annual Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM)
    • Place of Presentation
      Suntec Singapore Convention & Exhibition Centre (Singapore)
    • Year and Date
      2016-05-09
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Behavioral response time as explained by a fiber-based analysis of generalized fractional anisotropy measured using diffusion spectrum imaging2016

    • Author(s)
      Matsuo K, Hsu Y-C, Takehara Y, Tseng W-Y I, Mori N
    • Organizer
      24th Annual Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine
    • Place of Presentation
      Suntec Singapore Convention & Exhibition Centre
    • Year and Date
      2016-05-07
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Presentation] 「雑念」の脳内マッピング ― 視覚、運動および数唱課題のfMRIにおける信号低下の解析.(英語口演: Mapping of mind wandering: task-induced deactivation in fMRI of visual, motor and counting-number tasks)2015

    • Author(s)
      松尾香弥子, 竹原康雄, 森則夫
    • Organizer
      第43回日本磁気共鳴医学会大会
    • Place of Presentation
      東京ドームホテル
    • Year and Date
      2015-09-10
    • Related Report
      2015 Research-status Report
  • [Presentation] Task-induced deactivation in medial structures of the default mode network varied according to task types2015

    • Author(s)
      Matsuo K, Suzuki K, Wakusawa K, Takebayashi K, Takehara Y, Mori N
    • Organizer
      23rd Annual Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine
    • Place of Presentation
      Metro Toronto Convention Centre
    • Year and Date
      2015-05-30
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research

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Published: 2015-04-16   Modified: 2022-02-28  

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