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Yoshizawa Tomohiko  吉澤 知彦

ORCIDConnect your ORCID iD *help
Researcher Number 70825744
Other IDs
Affiliation (Current) 2025: 北海道大学, 歯学研究院, 助教
Affiliation (based on the past Project Information) *help 2025: 北海道大学, 歯学研究院, 助教
2020 – 2023: 北海道大学, 歯学研究院, 助教
2019: 東京医科歯科大学, 大学院医歯学総合研究科, 助教
Review Section/Research Field
Principal Investigator
Basic Section 46030:Function of nervous system-related
Except Principal Investigator
Basic Section 57010:Oral biological science-related
Keywords
Principal Investigator
線条体 / 報酬予測 / ストリオソーム/マトリックス / dLight1 / ファイバーフォトメトリー / 連合学習 / ドーパミン / マトリックス / ストリオソーム / レバー課題 … More / 腹側被蓋野 / マクロ状態 / 機械学習 / ワーキングメモリー / ワーキングメモリ / 前頭前野 / 一次運動野 / ポアソン回帰 / マルチユニット記録 … More
Except Principal Investigator
忌避行動 / 味覚反応試験 / 条件付け味覚嫌悪 / 孤束核 / 嘔吐 / CTA / ゲーピング / ラット / エメチン / シスプラチン / 迷走神経 / 最後野 / 悪心 Less
  • Research Projects

    (4 results)
  • Research Products

    (31 results)
  • Co-Researchers

    (4 People)
  •  線条体ストリオソームの縦断的活動計測による構造と神経ダイナミクスの統一理解Principal Investigator

    • Principal Investigator
      吉澤 知彦
    • Project Period (FY)
      2025 – 2027
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Review Section
      Basic Section 46030:Function of nervous system-related
    • Research Institution
      Hokkaido University
  •  Neurophysiological study for the elucidation of the difference of the central mechanism of nausea and vomiting and the development of the nausea suppression therapy.

    • Principal Investigator
      舩橋 誠
    • Project Period (FY)
      2022 – 2024
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Review Section
      Basic Section 57010:Oral biological science-related
    • Research Institution
      Hokkaido University
  •  Dopamine dynamics in striatal striosome/matrix compartments during associative learningPrincipal Investigator

    • Principal Investigator
      吉澤 知彦
    • Project Period (FY)
      2022 – 2024
    • Research Category
      Grant-in-Aid for Early-Career Scientists
    • Review Section
      Basic Section 46030:Function of nervous system-related
    • Research Institution
      Hokkaido University
  •  Development of brain state extraction method from large-scale neural activity data for brain algorithm estimationPrincipal Investigator

    • Principal Investigator
      Yoshizawa Tomohiko
    • Project Period (FY)
      2019 – 2021
    • Research Category
      Grant-in-Aid for Early-Career Scientists
    • Review Section
      Basic Section 46030:Function of nervous system-related
    • Research Institution
      Hokkaido University
      Tokyo Medical and Dental University

All 2024 2023 2022 2021 2020

All Journal Article Presentation

  • [Journal Article] Neuronal Representation of a Working Memory-Based Decision Strategy in the Motor and Prefrontal Cortico-Basal Ganglia Loops2023

    • Author(s)
      Yoshizawa Tomohiko、Ito Makoto、Doya Kenji
    • Journal Title

      eNeuro

      Volume: 10(6) Issue: 6 Pages: ENEURO.0413-22.2023

    • DOI

      10.1523/eneuro.0413-22.2023

    • Peer Reviewed / Open Access
    • Data Source
      KAKENHI-PROJECT-22K15217, KAKENHI-ORGANIZER-23H04972
  • [Journal Article] Working memory-based and -free reward prediction in a dual dopamine system in the basal ganglia2023

    • Author(s)
      Yoshizawa Tomohiko、Miyamura Yuuto、Ochi Yuta、Hira Riichiro、Funahashi Makoto、Sakai Yutaka、Cui Yilong、Isomura Yoshikazu
    • Journal Title

      bioRxiv

      Volume: - Pages: 033405-033405

    • DOI

      10.1101/2023.03.06.531239

    • Open Access
    • Data Source
      KAKENHI-PROJECT-22K15217, KAKENHI-PLANNED-21H05242, KAKENHI-ORGANIZER-21H05238, KAKENHI-PLANNED-21H05135
  • [Journal Article] Conditioned nausea induced by cisplatin and emetine identified by a taste reactivity test in rats2023

    • Author(s)
      Su Shaoyi、Wei Zimo、Huang Helai、Yoshizawa Tomohiko、Inui Tadashi、Funahashi Makoto
    • Journal Title

      Physiology & Behavior

      Volume: 269 Pages: 114278-114278

    • DOI

      10.1016/j.physbeh.2023.114278

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-22K09900
  • [Journal Article] Neuronal representation of a working memory-based decision strategy in the motor and prefrontal cortico-basal ganglia loops2022

    • Author(s)
      Yoshizawa Tomohiko、Ito Makoto、Doya Kenji
    • Journal Title

      bioRxiv

      Volume: -

    • DOI

      10.1101/2022.09.07.506894

    • Open Access
    • Data Source
      KAKENHI-PROJECT-22K15217
  • [Journal Article] An engineered channelrhodopsin optimized for axon terminal activation and circuit mapping2021

    • Author(s)
      Hamada Shun、Nagase Masashi、Yoshizawa Tomohiko、Hagiwara Akari、Isomura Yoshikazu、Watabe Ayako M.、Ohtsuka Toshihisa
    • Journal Title

      Communications Biology

      Volume: 4 Issue: 1 Pages: 1-11

    • DOI

      10.1038/s42003-021-01977-7

    • Peer Reviewed / Open Access
    • Data Source
      KAKENHI-PROJECT-20K09769, KAKENHI-PROJECT-20K15936, KAKENHI-PUBLICLY-19H04758, KAKENHI-PUBLICLY-19H05014, KAKENHI-PROJECT-19H03324, KAKENHI-PROJECT-19K16299, KAKENHI-PUBLICLY-20H05053, KAKENHI-PROJECT-19H03342, KAKENHI-PROJECT-19H04062, KAKENHI-PROJECT-20H03855, KAKENHI-PROJECT-21K18564, KAKENHI-PROJECT-16H06276
  • [Journal Article] Effects of methyl methacrylate on the excitability of the area postrema neurons in rats2020

    • Author(s)
      Yoshizawa Tomohiko、Funahashi Makoto
    • Journal Title

      Journal of Oral Biosciences

      Volume: 62 Issue: 4 Pages: 306-309

    • DOI

      10.1016/j.job.2020.09.003

    • NAID

      120007173912

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19K10039, KAKENHI-PROJECT-19K16299
  • [Presentation] サッカリンに対する条件付味覚嫌悪が甘い食べ物の摂取に及ぼす影響2024

    • Author(s)
      魏 紫茉, 黄 鶴来, 吉澤 知彦, 乾 賢, 舩橋 誠
    • Organizer
      第101回日本生理学会大会
    • Data Source
      KAKENHI-PROJECT-22K09900
  • [Presentation] Dopamine dynamics in striatal striosome compartments during classical and operant conditioning2024

    • Author(s)
      Tomohiko Yoshizawa, Makoto Funahashi
    • Organizer
      Winter Workshop on Mechanism of Brain and Mind 2024
    • Data Source
      KAKENHI-PROJECT-22K15217
  • [Presentation] Parallel processing of working memory-based and -free reward prediction in dual dopamine system of the basal ganglia2023

    • Author(s)
      Tomohiko Yoshizawa, Yuuto Miyamura, Yuta Ochi, Riichiro Hira, Makoto Funahashi, Yutaka Sakai, Yilong Cui, Yoshikazu Isomura
    • Organizer
      The 46th Annual Meeting of the Japan Neuroscience Society
    • Data Source
      KAKENHI-PROJECT-22K15217
  • [Presentation] 味覚反応試験を用いたラットにおけるエメチン誘発悪心の解析2023

    • Author(s)
      蘇韶懿、菊池媛美、魏紫茉、黄鶴来、吉澤知彦、乾賢、舩橋誠
    • Organizer
      第100回日本生理学会
    • Data Source
      KAKENHI-PROJECT-22K09900
  • [Presentation] Working memory-based and -free reward prediction in dual dopamine system of the basal ganglia2023

    • Author(s)
      吉澤 知彦、宮村 裕人、越智 祐太、平 理一郎、舩橋 誠、酒井 裕、崔 翼龍、礒村 宜和
    • Organizer
      脳と心のメカニズム 冬のワークショップ 2023
    • Data Source
      KAKENHI-PROJECT-22K15217
  • [Presentation] Analysis of gaping reactions induced by emetine and cisplatin.2023

    • Author(s)
      M. FUNAHASHI, Z. WEI, H. HUANG, T. YOSHIZAWA, T. INUI
    • Organizer
      北米神経科学学会(Society for Neuroscience)Neuroscience 2023
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-22K09900
  • [Presentation] サッカリン水摂取時の線条体背側部と腹側部での異なるドーパミン分泌動態2023

    • Author(s)
      吉澤知彦、舩橋誠
    • Organizer
      第65回歯科基礎医学会学術大会
    • Data Source
      KAKENHI-PROJECT-22K09900
  • [Presentation] 大脳基底核の二重ドーパミン系による作業記憶依存性・非依存性の報酬予測2023

    • Author(s)
      吉澤 知彦、宮村 裕人、越智 祐太、平 理一郎、舩橋 誠、酒井 裕、崔 翼龍、礒村 宜和
    • Organizer
      日本生理学会 第100回記念大会
    • Data Source
      KAKENHI-PROJECT-22K15217
  • [Presentation] 大脳基底核の二重ドーパミン系による作業記憶依存性・非依存性の報酬予測2023

    • Author(s)
      吉澤知彦、宮村裕人、越智祐太、平理一郎、舩橋 誠、酒井裕、崔翼龍、礒村宜和
    • Organizer
      第100回日本生理学会
    • Data Source
      KAKENHI-PROJECT-22K09900
  • [Presentation] 条件付け味覚嫌悪が摂食行動に及ぼす影響2023

    • Author(s)
      魏 紫茉, 黄 鶴来, 吉澤 知彦, 乾 賢, 舩橋 誠
    • Organizer
      第65回歯科基礎医学会学術大会
    • Data Source
      KAKENHI-PROJECT-22K09900
  • [Presentation] Distinct dopamine dynamics in the dorsal and ventral striatum during saccharin water intake2023

    • Author(s)
      Tomohiko Yoshizawa, Makoto Funahashi
    • Organizer
      The 65th Annual Meeting of Japan Association for Oral Biology
    • Data Source
      KAKENHI-PROJECT-22K15217
  • [Presentation] Parallel implementation of working and reference memory-based reward prediction in a dual dopamine pathway to the striatum.2023

    • Author(s)
      T. YOSHIZAWA, Y. MIYAMURA, Y. OCHI, R. HIRA, M. FUNAHASHI, Y. SAKAI, Y. CUI, Y. ISOMURA
    • Organizer
      北米神経科学学会(Society for Neuroscience)Neuroscience 2023
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-22K09900
  • [Presentation] Effects of conditioned taste aversion to saccharin on sweet food intake.2023

    • Author(s)
      Z. WEI, H. HUANG, T. YOSHIZAWA, T. INUI, M. FUNAHASHI
    • Organizer
      北米神経科学学会(Society for Neuroscience)Neuroscience 2023
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-22K09900
  • [Presentation] Parallel implementation of working memory and reference memory-based reward prediction in a dual dopamine pathway to the striatum2023

    • Author(s)
      Tomohiko Yoshizawa, Yuuto Miyamura, Yuta Ochi, Riichiro Hira, Makoto Funahashi, Yutaka Sakai, Yilong Cui, Yoshikazu Isomura
    • Organizer
      Neuroscience 2023
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-22K15217
  • [Presentation] Dexamethasone suppresses cisplatin-induced nausea in rats with area postrema lesions and bilateral subdiaphragmatic afferent vagotomy.2022

    • Author(s)
      Shaoyi Su, Emi Kikuchi, Yoshizawa T, Tadashi Inui, Makoto Funahashi
    • Organizer
      北米神経科学学会(Society for Neuroscience)Neuroscience 2022
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-22K09900
  • [Presentation] ゲーピング反応測定によるエメチン誘発条件付け悪心の解析2022

    • Author(s)
      蘇韶懿、 菊池媛美、吉澤知彦、 乾賢、 舩橋誠
    • Organizer
      第64回歯科基礎医学会学術大会
    • Data Source
      KAKENHI-PROJECT-22K09900
  • [Presentation] 非明示的な課題ルールに基づいた報酬予測を実現するための神経基盤2022

    • Author(s)
      吉澤知彦、宮村裕人、越智祐太、平理一郎、舩橋誠、酒井裕、崔翼龍、礒村宜和
    • Organizer
      NEURO2022(第45回日本神経科学大会)
    • Data Source
      KAKENHI-PROJECT-22K09900
  • [Presentation] Gaping reactions induced by emetine.2022

    • Author(s)
      Makoto Funahashi, Shaoyi Su, Emi Kikuchi, Zimo Wei , Huang Helai, Tomohiko Yoshizawa, Tadashi Inui
    • Organizer
      北米神経科学学会(Society for Neuroscience)Neuroscience 2022
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-22K09900
  • [Presentation] 最後野破壊および横隔膜下両側迷走神経求心路切除後のシスプラチン誘発条件付け味覚嫌悪に対するデキサメタゾンの効果2022

    • Author(s)
      蘇韶懿、魏紫茉、黄鶴来、吉澤知彦、乾賢、舩橋誠
    • Organizer
      第102回北海道医学大会生理系分科会(日本生理学会北海道地方会)
    • Data Source
      KAKENHI-PROJECT-22K09900
  • [Presentation] 非明示的な課題ルールに基づいた報酬予測を実現するための神経基盤2022

    • Author(s)
      吉澤 知彦、宮村 裕人、越智 祐太、平 理一郎、舩橋 誠、酒井 裕、崔 翼龍、礒村 宜和
    • Organizer
      Neuro2022
    • Data Source
      KAKENHI-PROJECT-22K15217
  • [Presentation] Neuronal representation of working memory-based decision strategy in the prefrontal and motor cortico-basal ganglia loops2021

    • Author(s)
      Yoshizawa Tomohiko, Ito Makoto, Doya Kenji
    • Organizer
      The 44th Annual Meeting of the Japan Neuroscience Society
    • Data Source
      KAKENHI-PROJECT-19K16299
  • [Presentation] 作業記憶に基づく意思決定戦略の大脳皮質-基底核回路における神経表現2021

    • Author(s)
      吉澤 知彦
    • Organizer
      第101回日本生理学会北海道地方会
    • Data Source
      KAKENHI-PROJECT-19K16299
  • [Presentation] 腹側被蓋野の神経活動に対する交互報酬の影響2020

    • Author(s)
      吉澤 知彦、野々村 聡、Alain Rios、川端 政則、坂入 朋美、酒井 裕、礒村 宜和
    • Organizer
      第12回 CBIR/ONSA/大学院セミナー共催 若手インスパイアシンポジウム
    • Data Source
      KAKENHI-PROJECT-19K16299
  • [Presentation] VTA neuronal activity represents trial- and block-based reward prediction errors2020

    • Author(s)
      Tomohiko Yoshizawa, Satoshi Nonomura, Alain Rios, Masanori Kawabata, Tomomi Sakairi, Yutaka Sakai, Yoshikazu Isomura
    • Organizer
      The 4th Research Area Meeting of Development and application of optical technology for spatiotemporal control of biological functions
    • Data Source
      KAKENHI-PROJECT-19K16299
  • [Presentation] 大脳基底核による報酬予測と強化学習2020

    • Author(s)
      吉澤 知彦
    • Organizer
      第12回 CBIR/ONSA/大学院セミナー共催 若手インスパイアシンポジウム
    • Invited
    • Data Source
      KAKENHI-PROJECT-19K16299
  • 1.  舩橋 誠 (80221555)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 2.  乾 賢 (40324735)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 10 results
  • 3.  船橋 誠
    # of Collaborated Projects: 0 results
    # of Collaborated Products: 15 results
  • 4.  萩原 明
    # of Collaborated Projects: 0 results
    # of Collaborated Products: 1 results

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