title: (In) sensitivity to spatial distortion in natural scenes.
abstract: The perception of object structure in the natural environment is remarkably stable under large variation in image size and projection, especially given our insensitivity to spatial position outside the fovea. Sensitivity to periodic spatial distortions that were introduced into one quadrant of gray-scale natural images was measured in a 4AFC task. Observers were able to detect the presence of distortions in unfamiliar images even though they did not significantly affect the amplitude spectrum. Sensitivity depended on the spatial period of the distortion and on the image structure at the location of the distortion. The results suggest that the detection of distortion involves decisions made in the late stages of image perception and is based on an expectation of the typical structure of natural scenes.
authors.affiliation: Schepens Eye Research Institute, Harvard Medical School, Boston, MA, USA. peter.bex@schepens.harvard.edu
authors.forename: Peter J
authors.initials: PJ
authors.lastname: Bex
mesh_terms: D015350:Contrast Sensitivity / Q000502:physiology*; D005556:Form Perception / Q000502:physiology*; D005584:Fovea Centralis / Q000502:physiology; D006801:Humans; D008297:Male; D008959:Models, Neurological; D009949:Orientation / Q000502:physiology; D010469:Perceptual Distortion / Q000502:physiology*; D010775:Photic Stimulation / Q000379:methods*; D013028:Space Perception / Q000502:physiology*
references.citation: J Vis. 2007 Dec 13;7(14):11.1-13
references.pmid: 18217806
references.citation: Can J Psychol. 1992 Jun;46(2):191-214
references.pmid: 1451041
references.citation: Br J Physiol Opt. 1966;23(2):75-106
references.pmid: 5958276
references.citation: Br J Math Stat Psychol. 1965 May;18:1-10
references.pmid: 14324842
references.citation: Proc R Soc Lond B Biol Sci. 1988 Dec 22;235(1280):221-45
references.pmid: 2907382
references.citation: Br J Ophthalmol. 2007 Mar;91(3):391-3
references.pmid: 17322466
references.citation: Arch Ophthalmol. 2000 Jan;118(1):41-6
references.pmid: 10636412
references.citation: Vision Res. 1991;31(7-8):1271-88
references.pmid: 1891818
references.citation: Perception. 2000;29(9):1117-26
references.pmid: 11144823
references.citation: Vision Res. 2001 Mar;41(6):711-24
references.pmid: 11248261
references.citation: Invest Ophthalmol Vis Sci. 1985 Jul;26(7):909-16
references.pmid: 4008207
references.citation: Nature. 1970 Apr 11;226(5241):177-8
references.pmid: 5437004
references.citation: Arch Ophthalmol. 1993 Jun;111(6):776-80
references.pmid: 8512478
references.citation: J Neurophysiol. 1995 Jan;73(1):218-26
references.pmid: 7714567
references.citation: Vision Res. 2000;40(5):473-84
references.pmid: 10820606
references.citation: J Physiol. 1968 Aug;197(3):551-66
references.pmid: 5666169
references.citation: Vision Res. 2007 Feb;47(3):298-308
references.pmid: 17178143
references.citation: Percept Psychophys. 1998 Jan;60(1):65-81
references.pmid: 9503912
references.citation: Curr Biol. 1995 May 1;5(5):552-63
references.pmid: 7583105
references.citation: J Exp Psychol Hum Percept Perform. 1987 Aug;13(3):323-34
references.pmid: 2958581
references.citation: Vision Res. 2009 Mar;49(8):843-50
references.pmid: 19275912
references.citation: Arch Ophthalmol. 1998 Oct;116(10):1303-6
references.pmid: 9790627
references.citation: J Vis. 2006 Jun 19;6(7):696-711
references.pmid: 16895453
references.citation: Cogn Psychol. 1989 Apr;21(2):233-82
references.pmid: 2706928
references.citation: J Vis. 2009 Sep 04;9(10):1.1-19
references.pmid: 19810782
references.citation: Psychol Sci. 2002 Mar;13(2):142-9
references.pmid: 11933998
references.citation: Graefes Arch Clin Exp Ophthalmol. 2003 Feb;241(2):89-93
references.pmid: 12605261
references.citation: Spat Vis. 1990;5(2):81-100
references.pmid: 2090197
references.citation: Vision Res. 1985;25(2):253-65
references.pmid: 4013092
references.citation: Vision Res. 1998 Nov;38(22):3555-68
references.pmid: 9893789
references.citation: Vision Res. 2000;40(19):2661-9
references.pmid: 10958916
references.citation: J Vis. 2007 Aug 31;7(11):12.1-12
references.pmid: 17997667
references.citation: Perception. 1991;20(5):585-93
references.pmid: 1806902
references.citation: Curr Biol. 2000 Nov 16;10(22):1455-8
references.pmid: 11102809
references.citation: Science. 1971 Feb 19;171(3972):701-3
references.pmid: 5540314
references.citation: Spat Vis. 1997;10(4):437-42
references.pmid: 9176953
references.citation: Psychol Rev. 1992 Jul;99(3):480-517
references.pmid: 1502274
references.citation: Percept Psychophys. 1990 Jul;48(1):1-11
references.pmid: 2377436
references.citation: Vision Res. 1997 Jul;37(14):1873-83
references.pmid: 9274773
references.citation: Nature. 1978 Jan 5;271(5640):54-6
references.pmid: 625324
references.citation: Neuron. 2000 Aug;27(2):227-35
references.pmid: 10985344
references.citation: Graefes Arch Clin Exp Ophthalmol. 2003 Oct;241(10):785-91
references.pmid: 12928905
references.citation: J Neurophysiol. 1994 Sep;72(3):1049-60
references.pmid: 7807195
references.citation: J Comput Neurosci. 1995 Mar;2(1):45-62
references.pmid: 8521279
references.citation: Vision Res. 2007 May;47(11):1518-22
references.pmid: 17316737
references.citation: Vision Res. 1985;25(7):963-77
references.pmid: 4049746
references.citation: Invest Ophthalmol Vis Sci. 2003 Apr;44(4):1555-67
references.pmid: 12657592
references.citation: Science. 2004 Aug 13;305(5686):1020-2
references.pmid: 15310908
references.citation: Invest Ophthalmol Vis Sci. 2003 Sep;44(9):4012-6
references.pmid: 12939323
references.citation: Invest Ophthalmol Vis Sci. 1981 Feb;20(2):263-8
references.pmid: 7461929
references.citation: Percept Psychophys. 1988 Jan;43(1):1-6
references.pmid: 3340493
references.citation: Spat Vis. 1997;10(4):433-6
references.pmid: 9176952
references.citation: Invest Ophthalmol Vis Sci. 2009 Jul;50(7):3218-25
references.pmid: 19255157
references.citation: Network. 2005 Jun-Sep;16(2-3):261-84
references.pmid: 16411499
references.citation: Proc Biol Sci. 1998 Mar 7;265(1394):359-66
references.pmid: 9523437
references.citation: J Exp Psychol Hum Percept Perform. 1990 Feb;16(1):217-20
references.pmid: 2137520
references.citation: Vision Res. 2003 Apr;43(9):971-82
references.pmid: 12676241
references.citation: Nature. 1995 Dec 14;378(6558):670-2
references.pmid: 7501012
references.citation: Spat Vis. 1997;10(4):369-77
references.pmid: 9176946
references.citation: Vision Res. 1985;25(11):1661-74
references.pmid: 3832590
references.citation: Prog Neurobiol. 1997 Feb;51(2):167-94
references.pmid: 9247963
references.citation: Vision Res. 2009 Sep;49(18):2306-17
references.pmid: 19580822
references.citation: Vision Res. 1999 Jul;39(14):2421-7
references.pmid: 10367062