Relationship between facilitation at threshold and suprathreshold contour integration

被引：94

作者：

Williams, CB ^{[1
]}

Hess, RF ^{[1
]}

机构：

[1] McGill Univ, Dept Ophthalmol H4 14, McGill Vis Res Unit, Montreal, PQ H3A 1A1, Canada

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION | 1998年 / 15卷 / 08期

关键词：

D O I：

10.1364/JOSAA.15.002046

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We reevaluate the facilitation at threshold previously reported between aligned micropatterns and assess the role of such lateral spatial interactions in suprathreshold contour integration tasks. Contrary to previous claims, we show that these interactions are phase dependent. Furthermore, they are clearly evident only for foveal viewing, are not evident for curved alignments (>20 degrees), and do not produce any suprathreshold consequence for contrast perception. Such findings question their usefulness for contour integration of smoothly curved suprathreshold paths. (C) 1998 Optical Society of America.

引用

页码：2046 / 2051

页数：6

共 25 条

[1] SPATIAL INTERACTIONS IN APPARENT CONTRAST - INDIVIDUAL-DIFFERENCES IN ENHANCEMENT AND SUPPRESSION EFFECTS [J].

CANNON, MW ;

FULLENKAMP, SC .

VISION RESEARCH, 1993, 33 (12) :1685-1695

[2]

Field David J., 1997, Investigative Ophthalmology and Visual Science, V38, pS999

[3] CONTOUR INTEGRATION BY THE HUMAN VISUAL-SYSTEM - EVIDENCE FOR A LOCAL ASSOCIATION FIELD [J].

FIELD, DJ ;

HAYES, A ;

HESS, RF .

VISION RESEARCH, 1993, 33 (02) :173-193

[4] HORIZONTAL INTEGRATION AND CORTICAL DYNAMICS [J].

GILBERT, CD .

NEURON, 1992, 9 (01) :1-13

[5] Absence of contour linking in peripheral vision [J].

Hess, RF ;

Dakin, SC .

NATURE, 1997, 390 (6660) :602-604

[6] THE CODING OF SPATIAL POSITION BY THE HUMAN VISUAL-SYSTEM - EFFECTS OF SPATIAL SCALE AND RETINAL ECCENTRICITY [J].

HESS, RF ;

HAYES, A .

VISION RESEARCH, 1994, 34 (05) :625-643

[7] The role of "contrast enhancement" in the detection and appearance of visual contours [J].

Hess, RF ;

Dakin, SC ;

Field, DJ .

VISION RESEARCH, 1998, 38 (06) :783-787

[8] A CLOSED CURVE IS MUCH MORE THAN AN INCOMPLETE ONE - EFFECT OF CLOSURE IN FIGURE GROUND SEGMENTATION [J].

KOVACS, I ;

JULESZ, B .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1993, 90 (16) :7495-7497

[9] Contour integration with colour and luminance contrast [J].

McIlhagga, WH ;

Mullen, KT .

VISION RESEARCH, 1996, 36 (09) :1265-1279

[10] CONTRAST DETECTION FACILITATION BY SPATIALLY SEPARATED TARGETS AND INDUCERS [J].

MORGAN, MJ ;

DRESP, B .

VISION RESEARCH, 1995, 35 (08) :1019-1024

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