Presentation | 2020-03-04 Dimensionality estimation of neural responses to natural images in monkey V4 Atsushi Kodama, Ko Sakai, |
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PDF Download Page | PDF download Page Link |
Abstract(in Japanese) | (See Japanese page) |
Abstract(in English) | Neurons in monkey V4 show selectivity for various kinds of visual properties such as curvature, orientation, color, and texture.However, it has not been clarified how the neural populations integrate these features and represent visual information.We investigated the representation of visual information in V4 based on dimensionality, a quantitative indicator for estimating the degree of complexity in representation.Specifically, we calculated and estimated the intrinsic dimensionality by applying the principal component analysis to the neural responses from V4 while the monkey was seeing hundreds of kinds of stimuli, including natural image patches.The estimated dimensionality was approximately 43, indicating that about 40 type of ideal neurons would be capable of representing visual information in V4. |
Keyword(in Japanese) | (See Japanese page) |
Keyword(in English) | vision / V4 / dimensionality / ventral stream |
Paper # | NC2019-85 |
Date of Issue | 2020-02-26 (NC) |
Conference Information | |
Committee | NC / MBE |
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Conference Date | 2020/3/4(3days) |
Place (in Japanese) | (See Japanese page) |
Place (in English) | University of Electro Communications |
Topics (in Japanese) | (See Japanese page) |
Topics (in English) | Neuro Computing, Medical Engineering, etc. |
Chair | Hayaru Shouno(UEC) / Taishin Nomura(Osaka Univ.) |
Vice Chair | Kazuyuki Samejima(Tamagawa Univ) / Takashi Watanabe(Tohoku Univ.) |
Secretary | Kazuyuki Samejima(NAIST) / Takashi Watanabe(NTT) |
Assistant | Takashi Shinozaki(NICT) / Ken Takiyama(TUAT) / Yasuyuki Suzuki(Osaka Univ.) / Akihiro Karashima(Tohoku Inst. of Tech.) |
Paper Information | |
Registration To | Technical Committee on Neurocomputing / Technical Committee on ME and Bio Cybernetics |
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Language | JPN |
Title (in Japanese) | (See Japanese page) |
Sub Title (in Japanese) | (See Japanese page) |
Title (in English) | Dimensionality estimation of neural responses to natural images in monkey V4 |
Sub Title (in English) | |
Keyword(1) | vision |
Keyword(2) | V4 |
Keyword(3) | dimensionality |
Keyword(4) | ventral stream |
1st Author's Name | Atsushi Kodama |
1st Author's Affiliation | University of Tsukuba(Univ. Tsukuba) |
2nd Author's Name | Ko Sakai |
2nd Author's Affiliation | University of Tsukuba(Univ. Tsukuba) |
Date | 2020-03-04 |
Paper # | NC2019-85 |
Volume (vol) | vol.119 |
Number (no) | NC-453 |
Page | pp.pp.57-60(NC), |
#Pages | 4 |
Date of Issue | 2020-02-26 (NC) |