Human cortical representation of object categories in short-term memory of natural visual images
| Project/Area Number |
15K16017
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Cognitive science
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| Research Institution | National Institute of Information and Communications Technology |
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Principal Investigator |
NISHIDA SATOSHI 国立研究開発法人情報通信研究機構, 脳情報通信融合研究センター脳情報通信融合研究室, 研究員 (90751933)
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2017: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Keywords | 短期記憶 / 意味知覚 / 視覚 / 脳内表現 / 脳情報デコーディング / ニューロマーケティング / fMRI / 自然言語処理 / MRI / 視知覚 / 意味 / カテゴリ / 符号化モデル / 復号化モデル |
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| Outline of Final Research Achievements |
To elucidate neural substrates for visual working memory, which is a neural function for maintaining visual information temporarily after its disappearance, I tried to develop a new mathematical method to model neural representations and to quantify neural representations of categories (e.g. “woman”, “talk”, and “cute”) during visual working memory. The developed method not only visualized neural category representations successfully but also was applied to a neural decoding technique to recover perceptual contents from brain activity in the form of words. Using this method, I found the cortical localization of category representations during working memory and the commonality of category representations between when visual information is directly perceived and when visual information is stored in working memory.
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Report
(4 results)
Research Products
(51 results)
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[Patent(Industrial Property Rights)] 視聴素材評価方法、視聴素材評価システム、及びプログラム2016
Inventor(s)
西本, 西田, 柏岡, 矢野, 前田, 角, 萩原, 茨木
Industrial Property Rights Holder
西本, 西田, 柏岡, 矢野, 前田, 角, 萩原, 茨木
Industrial Property Rights Type
特許
Industrial Property Number
2016-007307
Filing Date
2016-01-18
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