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Receptive Fields of (Early) Visual Neurons

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Presentation on theme: "Receptive Fields of (Early) Visual Neurons"— Presentation transcript:

1 Receptive Fields of (Early) Visual Neurons
大澤 Receptive Fields of (Early) Visual Neurons DeAngelis, Ohzawa, Freeman TINS1995

2 Receptive fields of V1 neurons (simple type)
Collected in Ohzawa lab These are receptive fields of simple cells in the primary visual cortex of the cats, measured over about 5 years from many animals in Izumi Ohzawa's lab at Osaka University. ON region OFF region Visual angle: 10 degs

3 Receptive fields of V1 neurons (simple type)
Collected in Ohzawa lab ON region OFF region Visual angle: 10 degs

4 Receptive fields of V1 neurons (simple type)
Collected in Ohzawa lab This version is colorized using psudo-color scale as indicated at bottom left. These are receptive fields of simple cells in the primary visual cortex of the cats, measured over about 5 years from many animals in Izumi Ohzawa's lab at Osaka University. ON region OFF region Visual angle: 10 degs

5 多くの細胞が画像をこのような要素に分解して元の画像を表現 Decomposing images into activities of a set of neurons 視野の各点についてこのように多くのスケールでいろいろな傾きのついた受容野を持つ細胞群がある。 Each area of the visual field has such a set of visual neurons. Izumi Ohzawa,

6 Copyright, Credits, and Licenses
Images shown in slides # 2-4 are receptive fields of simple cells in the cat's primary visual cortex, measured over about 5 years from many animals in Izumi Ohzawa's lab at Osaka University. These images were composed by Kota S. Sasaki from data in our laboratory. See the web sites below for more like these and further explanations: Ohzawa Lab web site: Graduate School of Frontier Biosciences web site: License: Slides in this file are licensed under: Creative Commons 表示-非営利 2.1 日本 ライセンス "Creative Commons Attribution-Noncommercial 2.1 Japan License" Other types of licenses are available upon request. Please contact Izumi Ohzawa at (c) Ohzawa Lab, Osaka University, Some Rights Reserved


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