Neural adjustments to image blur

Webster, Michael A., Georgeson, Mark A. and Webster, Shernaaz M. (2002). Neural adjustments to image blur. Nature Neuroscience, 5 (9), pp. 839-840.


Blur is an intrinsic feature of retina images that varies widely across images and observers, yet the world still typically appears 'in focus'. Here we examine the putative role of neural adaptation1 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.

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Divisions: Life & Health Sciences > Optometry
Uncontrolled Keywords: blur,retinal images,neural adaptation,human perception,focus,blur judgments,adaptation,acuity,contrast sensitivity
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Published Date: 2002-09
Authors: Webster, Michael A.
Georgeson, Mark A. ( 0000-0002-8173-9522)
Webster, Shernaaz M.

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