Orientation selectivity index (OSI) histograms of SFA units trained with different types of stimuli.

<p><b>A</b> Training with pink noise images that were translated only. <b>B</b> Training with pink noise images that were rotated and translated. <b>C</b> OSI distribution of the Gabor-QFP model. <b>D</b> Training with retinal wave image sequences. Histograms in <b>A</b>, <b>B</b>, and <b>D</b> were obtained by pooling OSI values from the first 50 SFA units of 10 simulation runs with identical parameters for the training input generation.</p>