Neural adjustments to image blur
- 26 August 2002
- journal article
- Published by Springer Science and Business Media LLC in Nature Neuroscience
- Vol. 5 (9), 839-840
- https://doi.org/10.1038/nn906
Abstract
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.Keywords
This publication has 12 references indexed in Scilit:
- Improving vision: neural compensation for optical defocusProceedings Of The Royal Society B-Biological Sciences, 1998
- Visual sensitivity, blur and the sources of variability in the amplitude spectra of natural scenesVision Research, 1997
- Human colour perception and its adaptationNetwork: Computation in Neural Systems, 1996
- Discrimination of changes in the second-order statistics of natural and synthetic imagesVision Research, 1994
- Decreased Uncorrected Vision After a Period of Distance Fixation with Spectacle WearOptometry and Vision Science, 1993
- Visual Pattern AnalyzersPublished by Oxford University Press (OUP) ,1989
- Texture interactions determine perceived contrast.Proceedings of the National Academy of Sciences of the United States of America, 1989
- Relations between the statistics of natural images and the response properties of cortical cellsJournal of the Optical Society of America A, 1987
- An outline of the primal sketch in human visionPattern Recognition Letters, 1987
- Color and spatial structure in natural scenesApplied Optics, 1987