Siminoff R
Institut für Arbeitsphysiologie, Universität Dortmund, Federal Republic of Germany.
Biol Cybern. 1991;65(5):365-74. doi: 10.1007/BF00216970.
A computer model of simulated bipolar cells (BC) in the human retina is used to study wavelength discrimination (lambda delta). lambda delta curves are obtained for the two C-types of BCs in the central fovea and the three C-type BCs of the parafovea under various conditions. For the parafovea algebraic addition of the three C-type BCs with proper weighting of the blue-center BC, such that the unique orange locus = 600 nm, gives a combined channel whose lambda delta curve agrees remarkably well with those found in the literature based on human and primate psychophysics. Other studies include effects of chromatic adaptation and dispersion on lambda delta. From this and earlier studies it can be concluded that the center/surround organization of the BCs optimize resolution in the presence of natural occurring dispersion; in addition a specific BC receptive field organization could be picked as being optimal.
利用人类视网膜中模拟双极细胞（BC）的计算机模型来研究波长辨别（λδ）。在各种条件下，获得了中央凹中两种C型双极细胞以及旁中央凹中三种C型双极细胞的λδ曲线。对于旁中央凹，对三种C型双极细胞进行代数相加，并对蓝中心双极细胞进行适当加权，使得独特的橙色轨迹 = 600纳米，得到一个组合通道，其λδ曲线与基于人类和灵长类动物心理物理学的文献中发现的曲线非常吻合。其他研究包括颜色适应和色散对λδ的影响。从这项研究和早期研究可以得出结论，双极细胞的中心/周边组织在自然发生色散的情况下优化了分辨率；此外，可以选择一种特定的双极细胞感受野组织作为最优组织。
