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Hierarchical representation of visual information in inferior temporal cortex

Research Project

Project/Area Number 17K01995
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Brain biometrics
Research InstitutionInstitute of Physical and Chemical Research

Principal Investigator

UCHIDA Go  国立研究開発法人理化学研究所, 脳神経科学研究センター, 専門職研究員 (50321732)

Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2019: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2017: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Keywords下側頭葉視覚連合野 / 顔 / 分類 / 同定 / 視覚情報表現 / L1正則化ロジスティック回帰 / 機能コラム / 脳・神経
Outline of Final Research Achievements

There are two types of visual recognition of objects: classification and identification. Classification is to assign an object to the category to which the object belongs. Identification is to determine whether or not an object is the same as a specific object. The inferior temporal (IT) cortex is essential for visual perception and recognition of objects. In the IT cortex, there are neurons that preferentially respond to faces (face neurons). In this study, I investigated whether face neurons represent enough information for face classification and identification by faces. I found that not only face neurons but also neurons that respond more strongly to objects other than faces contribute to face classification and identification by faces.

Academic Significance and Societal Importance of the Research Achievements

従来、顔の視覚情報処理は顔細胞のみで行われていると考えられていた。これは、顔細胞のみを調べて出てきた考えである。しかし、IT野には非顔細胞も存在する。本研究の意義は、非顔細胞も調べ、非顔細胞も顔の視覚情報処理に寄与すること、また非顔細胞が寄与する場合の方がより効率的な情報処理が可能であることを示したことにある。

Report

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

    (1 results)

All 2019

All Presentation (1 results)

  • [Presentation] 顔と顔以外の分類および顔による個体の識別に必要なサル下側頭葉視覚連合野の神経集団の違い2019

    • Author(s)
      楡井優子、内田豪、谷藤学
    • Organizer
      第42回日本神経科学大会
    • Related Report
      2019 Annual Research Report

URL: 

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

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