Neural adjustments to image blur
Neural adjustments to image blur
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DOI：
10.1038/nn906
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发表时间：
2002-09-01
影响因子：
25
通讯作者：
Webster, SM
中科院分区：
文献类型：
--
作者：
Webster, MA;Georgeson, MA;Webster, SM
模糊是视网膜图像的一个固有特征，在图像和观察者之间存在很大差异，但世界通常仍然“清晰可见”。在这里，我们通过测量模糊判断如何依赖于适应状态来研究神经适应在人类图像焦点感知中的假定作用。之前已经证明，暴露于未聚焦的图像会影响敏锐度和对比敏感度，在这里我们表明，适应也可以深刻地影响图像焦点的实际感知。
Blur is an intrinsic feature of retinal images that varies widely across images and observers, yet the world still typically appears 'in focus'. Here we examine the putative role of neural adaptation in the human perception of image focus by measuring how blur judgments depended on the state of adaptation. Exposure to unfocused images has previously been shown to influence acuity,and contrast sensitivity,, and here we show that adaptation can also profoundly affect the actual perception of image focus.