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Combined Visual Prosthesis with a Novel Neural Stimulation

Research Project

Project/Area Number 17K13278
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Brain biometrics
Research InstitutionOsaka University

Principal Investigator

Suematsu Naofumi  大阪大学, 工学研究科, 助教 (30779517)

Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2018: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2017: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywords神経補綴 / 視覚野 / 近赤外レーザー光刺激 / 人工視覚 / 細胞外電気記録 / 行動実験 / 弁別課題 / 報酬系 / 近赤外レーザー刺激 / 神経科学 / マウス
Outline of Final Research Achievements

For the purpose of the evaluation of the near-infrared laser stimulation in the visual prosthesis, I measured changes of neural firing rate in the mouse visual cortex induced by 912-nm laser pulses. The induced changes were smaller than the ones induced by a standard visual stimulus, suggesting that this stimulation condition is not efficient for neural activity manipulations.
Also I constructed a detection-task training system for evaluating animals' visual perception in the research field of the visual prosthesis.

Academic Significance and Societal Importance of the Research Achievements

本研究分野は、失明患者の視覚を取り戻すこと目指している。
本研究課題で得られた成果はそのものは、残念ながら今後の機器開発等に積極的に活かせるものでは無かったが、今回確認した条件は有効ではない可能性があるということが分かった。これは今後の同分野における基礎研究において、次に確かめるべき条件への足掛かりとなる。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (9 results)

All 2019 2018 2017 Other

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

  • [Journal Article] Spatiotemporal Analysis of Simultaneous Repetitive Electrical Stimulation with Voltage Sensitive Dye2018

    • Author(s)
      de Levy Oliveira Lucas、Suematsu Naofumi、Yagi Tetsuya
    • Journal Title

      2018 IEEE Biomedical Circuits and Systems Conference

      Volume: None Pages: 1-4

    • DOI

      10.1109/biocas.2018.8584719

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Age-related changes in the spatiotemporal responses to electrical stimulation in the visual cortex of rats with progressive vision loss2017

    • Author(s)
      S. Miyamoto, N. Suematsu, Y. Umehira , Y. Hayashida, T. Yagi
    • Journal Title

      Scientific Reports

      Volume: 7 Issue: 1 Pages: 14165-14165

    • DOI

      10.1038/s41598-017-14303-1

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Quantitative Analyses of Cortical Responses to Prosthetic Microstimulations Using Voltage-Sensitive Dye Imaging on Mice2019

    • Author(s)
      Celine Audrey Vergne, Lucas de Levy Oliviera, Tamas David Fehervari, Keisuke Morisada, Naofumi Suematsu, Yuki Hayashida, Tetsuya Yagi
    • Organizer
      Asia-Pacific Conference on Vision
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 人工視覚によって誘発される光覚の行動学的評価2018

    • Author(s)
      末松尚史、萩原一誠、宮本崇司、菅祥平、大越知樹、八木哲也
    • Organizer
      視覚科学フォーラム 2018
    • Related Report
      2018 Research-status Report
  • [Presentation] Spatiotemporal Analysis of Simultaneous Repetitive Electrical Stimulation with Voltage Sensitive Dye2018

    • Author(s)
      L. L. Oliveira, N. Suematsu, T. Yagi
    • Organizer
      2018 IEEE Biomedical Circuits and Systems Conference
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Trans-dural electrical stimulation to rodent visual cortex with round-tip pressing electrode2018

    • Author(s)
      T. Ogoshi, S. Miyamoto, N. Suematsu, T. Yagi
    • Organizer
      第41回日本神経科学大会
    • Related Report
      2018 Research-status Report
  • [Presentation] Quantitative Characterization of Neural Responses Induced by Microstimulation in Mice Visual Cortex for Designing a Visual Prosthetic Stimulation2017

    • Author(s)
      Naofumi Suematsu, Kouki Takatani, Yuki Hayashida, Yuka Okazaki, Tetsuya Yagi
    • Organizer
      The Eye and The Chip 2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Remarks] Naofumi Suematsu - Google Scholar Citations

    • URL

      https://scholar.google.com/citations?user=6AfELIIAAAAJ

    • Related Report
      2019 Annual Research Report
  • [Remarks] Naofumi Suematsu

    • URL

      https://scholar.google.com/citations?user=6AfELIIAAAAJ

    • Related Report
      2018 Research-status Report

URL: 

Published: 2017-04-28   Modified: 2021-02-19  

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