| 用菌紫质Langmuir—Blodgett膜模拟视网膜神经节细胞感受野的DOG滤波等特性 |
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| 引用本文： | 杨俭华,王光毓,张志广,张光年,林书煌,卢涛,李宝芳,江龙.用菌紫质Langmuir—Blodgett膜模拟视网膜神经节细胞感受野的DOG滤波等特性[J].生物物理学报,1995,11(3):384-388. |
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| 作者姓名： | 杨俭华 王光毓 张志广 张光年 林书煌 卢涛 李宝芳 江龙 |
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| 作者单位： | 首都师范大学生物信息科学研究所,北京 100037; 中国科学院北京感光化学研究所,北京 100101 |
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| 摘 要： | 用菌紫质膜以一维形式模拟了视网膜神经节细胞的ＯＮ－中心型感受野。实验表明菌紫质ＬＢ膜具有ＯＮ型和ＯＦＦ型微分响应特性，对运动狭缝，所模拟的人工视网膜感受野的周边区和中心区都具有类高斯函数形式的滤波特性，整个人工视网膜感受野具有与高等动物视网膜相似的ＤＯＧ滤波运算功能。
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| 关 键 词： | 感受野 视网膜神经节 细胞 菌紫质 LB膜 模拟 |
DOG FILTERING AND OTHER FEATURES OF THE RETINAL GANGLION RECEPTIVE FIELD SIMULATED BY THE BACTERORHODOPSIN(bR) LANGMUIR-BLODGETT(LB) FILM |
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| Abstract: | The bR-LB films were employed to simulate 1-D retinal ON-center receptive field. The results showed that the bR-LB film was characterics as ON-and OFF-defferential responses. Both the center and surround of artificial receptive field had a feature of Guassian filter operator. The experiment revealed that the artifical ON-center receptive field functioned as a DOG filter operator similar to the feature in the retinal ganglion receptive field of higher vertebrates. |
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| Keywords: | Bacteriorhodopsin LB-film Simulation Receptive field |
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