Hierarchical representation of visual information in inferior temporal cortex
| Project/Area Number |
17K01995
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Brain biometrics
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| Research Institution | Institute of Physical and Chemical Research |
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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)
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| Project Period (FY) |
2017-04-01 – 2020-03-31
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| Project Status |
Completed (Fiscal Year 2019)
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| 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)
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| 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 |
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| 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.
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| 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。
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Report
(4 results)
Research Products
(1 results)
