二種の視覚情報出力をシミュレートする網膜模倣型回路モデル

カテゴリ: 部門大会

論文No: MC5-2

グループ名: 【C】平成22年電気学会電子・情報・システム部門大会講演論文集

発行日: 2010/09/02

タイトル(英語): A retino-morphic circuit model simulating two visual information outputs

著者名: 林田 祐樹(熊本大学),Murat Saglam(熊本大学),安岡 英孝(熊本大学),村山 伸樹(熊本大学)

著者名(英語): Yuki Hayashida(Kumamoto University),Murat Saglam(Kumamoto University),Hidetaka Yasuoka(Kumamoto University),Nobuki Murayama(Kumamoto University)

キーワード: 初期視覚|脊椎動物網膜|神経回路|対象物運動|画像輪郭モデル化|early vision|vertebrate retina|neuronal circuit|object motion|image contourmodeling

要約(日本語): Visual processing in vertebrate animals starts in retinas. In electrophysiological studies, it was previously demonstrated that the object motion segregated from the background motion due to, for example, fixational eye movement is computed, at least in part, by the retinal circuits. Thus, some subtypes of retinal output neurons send spikes to the brain at high frequency only in response to the object motion. On the other hand, it was recently shown that, immediately after saccadic eye movement, image contour is encoded into the relative latencies of the first spike firings in an ensemble of output neurons, which are also sensitive to the object motion. Here, we discuss a retino-morphic circuit model that simulates these two outputs of visual information at the neuronal level.

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