Perception of contours and shapes: Low and intermediate stage mechanisms

Vision Research

Volumn 48, Issue 20, 2008, Pages 2106-2127

  Loffler, Gunter ^a  

^a GLASGOW CALEDONIAN UNIVERSITY   (United Kingdom)

Author keywords

Contour integration; Form perception; Global processing; Long range interaction; Object recognition; Shape discrimination; Shape perception; Shape representation; Spatial vision; Visual integration

Indexed keywords

ARTICLE; ASSOCIATION; CELL ACTIVITY; CELL INTERACTION; CONTRAST; DEPTH PERCEPTION; FACILITATION; HUMAN; NERVE CELL NETWORK; PATTERN RECOGNITION; PRIORITY JOURNAL; PSYCHOPHYSICS; PYRAMIDAL NERVE CELL; SPATIAL DISCRIMINATION; TASK PERFORMANCE; VISUAL DISCRIMINATION; VISUAL STIMULATION; VISUAL SYSTEM;

CONTRAST SENSITIVITY; DISCRIMINATION (PSYCHOLOGY); FORM PERCEPTION; HUMANS; MODELS, PSYCHOLOGICAL; NEURONS; PATTERN RECOGNITION, VISUAL; PSYCHOPHYSICS;

EID: 51349098792     PISSN: 00426989     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.visres.2008.03.006     Document Type: Article

References (259)

1. Achtman R.L., Hess R.F., and Wang Y.-Z. Sensitivity for global shape detection. Journal of Vision 3 10 (2003) 616-624
2. Adini Y., Sagi D., and Tsodyks M. Excitatory-inhibitory network in the visual cortex: Psychophysical evidence. Proceedings of the National Academy of Sciences of the United States of America 94 19 (1997) 10426-10431
3. Alter I., and Schwartz E.L. Psychophysical studies of shape with Fourier descriptor stimuli. Perception 17 2 (1988) 191-202
4. Anderson N.D., Habak C., Wilkinson F., and Wilson H.R. Evaluating shape after-effects with radial frequency patterns. Vision Research 47 3 (2007) 298-308
5. Anderson N.D., and Wilson H.R. The nature of synthetic face adaptation. Vision Research 45 14 (2005) 1815-1828
6. Appelle S. Perception and discrimination as a function of stimulus orientation: The oblique effect in man and animals. Psychological Bulletin 78 (1972) 266-278
7. Attneave F. Some information aspects of visual perception. Psychological Review 61 (1954) 183-193
8. Barenholtz E., Cohen E.H., Feldman J., and Singh M. Detection of change in shape: An advantage for concavities. Cognition 89 1 (2003) 1-9
9. Barlow H.B., and Reeves B.C. The versatility and absolute efficiency of detecting mirror symmetry in random dot displays. Vision Research 19 7 (1979) 783-793
10. Beck J., Rosenfeld A., and Ivry R. Line segmentation. Spatial Vision 42 (1989) 75-101
11. Bell, J. (2008). An analysis of global shape processing using radial frequency contours. Ph.D. thesis, University of Western Australia.
12. Bell J., Badcock D.R., Wilson H., and Wilkinson F. Detection of shape in radial frequency contours: Independence of local and global form information. Vision Research 47 11 (2007) 1518-1522
13. Ben-Shahar O., and Zucker S. Geometrical computations explain projection patterns of long-range horizontal connections in visual cortex. Neural Computation 16 3 (2004) 445-476
14. Bertamini M. The importance of being convex: An advantage for convexity when judging position. Perception 30 11 (2001) 1295-1310
15. Bertamini M., and Mosca F. Early computation of contour curvature and part structure: Evidence from holes. Perception 33 1 (2004) 35-48
16. Biederman I. Recognition-by-components: A theory of human image understanding. Psychological Review 94 2 (1987) 115-147
17. Birch E.E., Swanson W.H., and Wang Y.Z. Infant hyperacuity for radial deformation. Investigative Ophthalmology and Visual Science 41 11 (2000) 3114-3410
18. Blakemore C., and Over R. Curvature detectors in human vision?. Perception 3 1 (1974) 3-7
19. Blum H. A transformation for extracting new descriptors of shape. Models for the Perception of Speech and Visual Form (1967) 362-380
20. Blum H. Biological shape and visual science. I. Journal of Theoretical Biology 38 2 (1973) 205-287
21. Bolz J., and Gilbert C.D. The role of horizontal connections in generating long receptive fields in the cat visual cortex. European Journal of Neuroscience 1 3 (1989) 263-268
22. Bonds A.B. Role of inhibition in the specification of orientation selectivity in the cat striate cortex. Visual Neuroscience 2 (1989) 41-55
23. Bonds A.B. Temporal dynamics of contrast gain in single cells of the cat striate cortex. Visual Neuroscience 6 (1991) 239-255
24. Bosking W.H., Yang Y., Schofield B., and Fitzpatrick D. Orientation selectivity and the arrangement of horizontal connections in tree shrew striate cortex. Journal of Neuroscience 17 (1997) 2112-2127
25. Boynton G.M., and Hegde J. Visual cortex: The continuing puzzle of area V2. Current Biology 14 13 (2004) 523-524
26. Braun J. On the detection of salient contours. Spatial Vision 12 2 (1999) 211-225
27. Brincat S.L., and Connor C.E. Underlying principles of visual shape selectivity in posterior inferotemporal cortex. Nature Neuroscience 7 8 (2004) 880-886
28. Burbeck C.A., and Pizer S.M. Object representation by cores: Identifying and representing primitive spatial regions. Vision Research 35 13 (1995) 1917-1930
29. Caelli T., and Bevan P. Visual sensitivity to two-dimensional spatial phase. Journal of the Optical Society of America 72 10 (1982) 1375-1381
30. Caelli T., and Dodwell P. Orientation-position coding and invariance characteristics of pattern discrimination. Perception and Psychophysics 36 2 (1984) 159-168
31. Campbell F.W., and Robson J.G. Application of Fourier analysis to the visibility of gratings. Journal of Physiology 197 (1968) 551-566
32. Cannon M.W., and Fullenkamp S.C. Spatial interactions in apparent contrast: Inhibitory effects among grating patterns of different spatial frequencies, spatial positions and orientations. Vision Research 31 11 (1991) 1985-1998
33. Cavanaugh J.R., Bair W., and Movshon J.A. Nature and interaction of signals from the receptive field center and surround in macaque V1 neurons. Journal of Neurophysiology 88 5 (2002) 2530-2546
34. Cavanaugh J.R., Bair W., and Movshon J.A. Selectivity and spatial distribution of signals from the receptive field surround in macaque V1 neurons. Journal of Neurophysiology 88 5 (2002) 2547-2556
35. Chen C.C., Kasamatsu T., Polat U., and Norcia A.M. Contrast response characteristics of longrange lateral interactions in cat striate cortex. NeuroReport 12 4 (2001) 655-661
36. Chen C.C., and Tyler C.W. Spatial pattern summation is phase-insensitive in the fovea but not in the periphery. Spatial Vision 12 3 (1999) 267-285
37. Chen C.C., and Tyler C.W. Lateral modulation of contrast discrimination: Flanker orientation effects. Journal of Vision 2 6 (2002) 520-530
38. Chen S., and Levi D.M. Angle judgment: Is the whole the sum of its parts?. Vision Research 36 12 (1996) 1721-1735
39. Coltheart M. Visual feature-analyzers and after-effects of tilt and curvature. Psychological review 78 2 (1971) 114-121
40. Dakin S.C. The detection of structure in glass patterns: Psychophysics and computational models. Vision Research 37 16 (1997) 2227-2246
41. Dakin S.C., and Bex P.J. Summation of concentric orientation structure: Seeing the glass or the window?. Vision Research 42 16 (2002) 2013-2020
42. Dakin S.C., and Hess R.F. Spatial-frequency tuning of visual contour integration. Journal of the Optical Society of America A: Optics and Image Science, and Vision 15 6 (1998) 1486-1499
43. Dakin S.C., and Hess R.F. Contour integration and scale combination processes in visual edge detection. Spatial Vision 12 3 (1999) 309-327
44. Das A., and Gilbert C.D. Topography of contextual modulations mediated by short-range interactions in primary visual cortex. Nature 399 (1999) 655-661
45. Das A., and Gilbert C.D. Long-range horizontal connections and their role in cortical reorganization revealed by optical recording of cat primary visual cortex. Nature 375 6534 (1995) 780-784
46. Day M., and Loffler G. A shape illusion: Orientation, not position, drives global shape perception. Perception 36 (2007) 105
47. DeAngelis G.C., Anzai A., Ohzawa I., and Freeman R.D. Receptive field structure in the visual cortex: Does selective stimulation induce plasticity?. Proceedings of the National Academy of Sciences of the United States of America 92 21 (1995) 9682-9686
48. Desimone R. Face-selective cells in the temporal cortex of monkeys. Journal of Cognitive Neuroscience 3 1 (1991) 1-8
49. Desimone R., and Schein S.J. Visual properties of neurons in area V4 of the macaque: Sensitivity to stimulus form. Journal of Neurophysiology 57 3 (1987) 835-969
50. DeValois R., and DeValois K. Spatial vision (1988), Oxford University Press, (New York
51. Dobbins A., Zucker S.W., and Cynader M.S. Endstopped neurons in the visual cortex as a substrate for calculating curvature. Nature 329 (1987) 438-441
52. Dobbins A., Zucker S.W., and Cynader M.S. Endstopping and curvature. Vision Research 29 10 (1989) 1371-1387
53. Dresp B. Bright lines and edges facilitate the detection of small light targets. Spatial Vision 7 3 (1993) 213-225
54. Dresp B. Dynamic characteristics of spatial mechanisms coding contour structures. Spatial Vision 12 2 (1999) 129-142
55. Dresp B., and Grossberg S. Contour integration across polarities and spatial gaps: From local contrast filtering to global grouping. Vision Research 37 7 (1997) 913-924
56. Dumoulin S.O., and Hess R.F. Cortical specialization for concentric shape processing. Vision Research 47 12 (2007) 1608-1613
57. Elder J., and Zucker S. The effect of contour closure on the rapid discrimination of two-dimensional shapes. Vision Research 33 7 (1993) 924-981
58. Elder J.H. Contour grouping: Ecological statistics, generative models and ideal observers. Journal of Vision 3 12 (2003) 10a
59. Elder J.H., and Goldberg R.M. Ecological statistics of Gestalt laws for the perceptual organization of contours. Journal of Vision 2 4 (2002) 324-353
60. Ellemberg D., Allen H.A., and Hess R.F. Investigating local network interactions underlying first- and second-order processing. Vision Research 44 15 (2004) 1787-1797
61. Fahle M. Parallel perception of vernier offsets, curvature, and chevrons in humans. Vision Research 31 12 (1991) 2149-2184
62. Felleman D.J., and Van Essen D.C. Distributed hierarchical processing in the primate cerebral cortex. Cerebral Cortex 1 (1991) 1-47
63. Field D.J., and Hayes A. Contour integration and lateral connections of V1 neurons. In: Chapupa L.M., and Werner J.S. (Eds). The visual neurosciences Vol. 2 (2004), MIT Press, Cambridge, MA 1069-1079
64. Field D.J., Hayes A., and Hess R.F. Contour integration by the human visual-system-Evidence for a local association field. Vision Research 33 2 (1993) 173-193
65. Field D.J., Hayes A., and Hess R.F. Roles of polarity and symmetry in the perceptual grouping of contour fragments. Spatial Vision 13 1 (2000) 51-66
66. Fitzpatrick D. The functional organization of local circuits in visual cortex: Insights from the study of tree shrew striate cortex. Cerebral Cortex 6 3 (1996) 329-341
67. Foley J.M., and Legge G.E. Contrast detection and near-threshold discrimination in human vision. Vision Research 21 (1981) 1041-1053
68. Foley J.M. Human luminance pattern-vision mechanisms: Masking experiments required a new model. Journal of the Optical Society of America A: Optics and Image Science, and Vision 11 6 (1994) 1710-1719
69. Foster D.H., Simmons D.R., and Cook M.J. The cue for contour-curvature discrimination. Vision Research 33 3 (1993) 329-341
70. Gallant J.L., Braun J., and Vanessen D.C. Selectivity for polar, hyperbolic, and cartesian gratings in macaque visual-cortex. Science 259 5091 (1993) 100-103
71. Gallant J.L., Connor C.E., Rakshit S., Lewis J.W., and VanEssen D.C. Neural responses to polar, hyperbolic, and Cartesian gratings in area V4 of the macaque monkey. Journal of Neurophysiology 76 4 (1996) 2718-2739
72. Gallant J.L., Shoup R.E., and Mazer J.A. A human extrastriate area functionally homologous to macaque V4. Neuron 27 2 (2000) 227-235
73. Geisler W.S., Perry J.S., Super B.J., and Gallogly D.P. Edge co-occurrence in natural images predicts contour grouping performance. Vision Research 41 6 (2001) 711-724
74. Gheorghiu E., and Kingdom F.A.A. Luminance-contrast properties of contour-shape processing revealed through the shape-frequency after-effect. Vision Research 46 21 (2006) 3603-3615
75. Gheorghiu E., and Kingdom F.A.A. The spatial feature underlying the shape-frequency and shape-amplitude after-effects. Vision Research 47 6 (2007) 834-844
76. Gilbert C.D., and Wiesel T.N. Morphology and intracortical projections of functionally characterised neurones in the cat visual cortex. Nature 280 5718 (1979) 120-125
77. Gilbert C.D., and Wiesel T.N. Laminar specialization and intercortical connections in cat primary visual cortex. In: Schmitt F.O., Worden F.G., Adelman G., and Dennis S.G. (Eds). The organization of the cerebral cortex (1981), The MIT Press, Cambridge Massachusetts 163-191
78. Gilbert C.D., and Wiesel T.N. Clustered intrinsic connections in cat visual cortex. Journal of Neuroscience 3 5 (1983) 1116-1133
79. Gilbert C.D., and Wiesel T.N. Columnar specificity of intrinsic horizontal and corticocortical connections in cat visual cortex. Journal of Neuroscience 9 7 (1989) 2432-2442
80. Gilbert C.D., and Wiesel T.N. The influence of contextual stimuli on the orientation selectivity of cells in primary visual cortex of the cat. Vision Research 30 11 (1990) 1689-1701
81. Glass L. Moire effect from random dots. Nature 223 (1969) 578-580
82. Goodale M.A., and Milner A.D. Separate visual pathways for perception and action. Trends in Neurosciences 15 1 (1992) 20-25
83. Gray C.M. The temporal correlation hypothesis of visual feature integration: Still alive and well. Neuron 24 1 (1999) 31-47
84. Gray C.M., Konig P., Engel A.K., and Singer W. Oscillatory responses in cat visual cortex exhibit inter-columnar synchronization which reflects global stimulus properties. Nature 338 6213 (1989) 334-337
85. Gray C.M., and Singer W. Stimulus-specific neuronal oscillations in orientation columns of cat visual cortex. Proceedings of the National Academy of Sciences of the United States of America 86 5 (1989) 1698-1702
86. Grill-Spector K., and Malach R. fMR-adaptation: A tool for studying the functional properties of human cortical neurons. Acta Psychologica 107 1-3 (2001) 293-321
87. Grinvald A., Lieke E.E., Frostig R.D., and Hildesheim R. Cortical point-spread function and long-range lateral interactions revealed by real-time optical imaging of macaque monkey primary visual-cortex. Journal of Neuroscience 14 5 Pt1 (1994) 2545-2568
88. Gross C.G. Representation of visual-stimuli in inferior temporal cortex. Philosophical Transactions of the Royal Society of London Series B-Biological Sciences 335 1273 (1992) 3-10
89. Grossberg S., and Mingolla E. Neural dynamics of form perception: Boundary completion, illusory figures, and neon color spreading. Psychological review 92 2 (1985) 173-211
90. Guttman S.E., and Kellman P.J. Contour interpolation revealed by a dot localization paradigm. Vision Research 44 15 (2004) 1799-1815
91. Habak C., Wilkinson F., and Wilson H.R. Dynamics of shape interaction in human vision. Vision Research 46 26 (2006) 4305-4320
92. Habak C., Wilkinson F., Zakher B., and Wilson H.R. Curvature population coding for complex shapes in human vision. Vision Research 44 24 (2004) 2815-2823
93. Heeger D.J. Normalization of cell responses in cat striate cortex. Visual Neuroscience 9 (1992) 181-197
94. Heeley D.W., and Buchanan-Smith H.M. Mechanisms specialized for the perception of image geometry. Vision Research 36 22 (1996) 3607-3627
95. Hegde J., and Van Essen D.C. Selectivity for complex shapes in primate visual area V2. Journal of Neuroscience 20 5 (2000) RC61
96. Hess R.F., and Dakin S.C. Absence of contour linking in peripheral vision. Nature 390 6660 (1997) 602-604
97. Hess R.F., Dakin S.C., and Field D.J. The role of 'contrast enhancement' in the detection and appearance of visual contours. Vision Research 38 6 (1998) 783-787
98. Hess R.F., and Field D.J. Contour integration across depth. Vision Research 35 12 (1995) 1699-1711
99. Hess R.F., Hayes A., and Kingdom F.A.A. Integrating contours within and through depth. Vision Research 37 6 (1997) 691-696
100. Hess R.F., Wang Y.Z., and Dakin S.C. Are judgements of circularity local or global?. Vision Research 39 26 (1999) 4354-4360
101. Hess R.F., Wang Y.Z., Demanins R., Wilkinson F., and Wilson H.R. A deficit in strabismic amblyopia for global shape detection. Vision Research 39 5 (1999) 901-914
102. Hess R.F., and Watt R.J. Regional distribution of the mechanisms that underlie spatial localization. Vision Research 30 7 (1990) 1021-1031
103. Heywood C.A., and Cowey A. On the role of cortical area V4 in the discrimination of hue and pattern in macaque monkeys. Journal of Neuroscience 7 9 (1987) 2601-2617
104. Heywood C.A., Gadotti A., and Cowey A. Cortical area V4 and its role in the perception of color. Journal of Neuroscience 12 10 (1992) 4056-4065
105. Hirsch J.A., and Gilbert C.D. Synaptic physiology of horizontal connections in the cat's visual cortex. Journal of Neuroscience 11 6 (1991) 1800-1809
106. Hon A.K., Maloney L.T., and Landy M.S. The influence function for visual interpolation. SPIE Conference Proceedings 3016 (1997) 409-419
107. Huang L., and Vul E. Role of a circle's center in visual interpolation. Vision Research 46 15 (2006) 2311-2314
108. Hubel D.H., and Wiesel T.N. Receptive fields, binocular interaction and functional architecture in the cat's visual cortex. Journal of Physiology 160 (1962) 106-154
109. Hubel D.H., and Wiesel T.N. Receptive fields and functional architecture of the monkey striate cortex. Journal of Physiology 195 (1968) 215-243
110. Ito M., and Gilbert C.D. Attention modulates contextual influences in the primary visual cortex of alert monkeys. Neuron 22 3 (1999) 593-604
111. Ito M., Kapadia M.K., Gilbert C.D., and Westheimer G. The role of contextual influences on spatial integration in V1 of the alert primate. Society of Neuroscience Abstracts 21 (1995) 771
112. Ito M., and Komatsu H. Representation of angles embedded within contour stimuli in area V2 of macaque monkeys. Journal of Neuroscience 24 13 (2004) 3313-3324
113. Jeffrey B.G., Wang Y.Z., and Birch E.E. Circular contour frequency in shape discrimination. Vision Research 42 25 (2002) 2773-2779
114. Jeffrey B.G., Wang Y.Z., and Birch E.E. Altered global shape discrimination in deprivation amblyopia. Vision Research 44 2 (2004) 167-177
115. Kapadia M.K., Ito M., Gilbert C.D., and Westheimer G. Improvement in visual sensitivity by changes in local context: Parallel studies in human observers and in V1 of alert monkeys. Neuron 15 4 (1995) 843-856
116. Kapadia M.K., Westheimer G., and Gilbert C.D. Dynamics of spatial summation in primary visual cortex of alert monkeys. Proceedings of the National Academy of Sciences of the United States of America 96 21 (1999) 12073-12078
117. Kapadia M.K., Westheimer G., and Gilbert C.D. Spatial distribution of contextual interactions in primary visual cortex and in visual perception. Journal of Neurophysiology 84 4 (2000) 2048-2062
118. Kayaert G., Biederman I., Op De Beeck H.P., and Vogels R. Tuning for shape dimensions in macaque inferior temporal cortex. European Journal of Neuroscience 22 1 (2005) 212-224
119. Kayaert G., Biederman I., and Vogels R. Shape tuning in macaque inferior temporal cortex. Journal of Neuroscience 23 7 (2003) 3016-3027
120. Keeble D.R., and Hess R.F. Discriminating local continuity in curved figures. Vision Research 39 19 (1999) 3287-3299
121. Keeble D.R.T., and Hess R.F. Orientation masks 3-Gabor alignment performance. Vision Research 38 6 (1998) 827-840
122. Kennedy G.J., Orbach H.S., and Loffler G. Effects of global shape on angle discrimination. Vision Research 46 8-9 (2006) 1530-1539
123. Kennedy G.J., Orbach H.S., and Loffler G. 2 Global shape versus local feature: An angle illusion. Vision Research 48 (2008) 1281-1289
124. Kimia B.B., Tannenbaum A.R., and Zucker S.W. Shapes, shocks, and deformations I: The components of two-dimensional shape and the reaction-diffusion space. International Journal of Computer Vision 15 3 (1995) 189-224
125. Kisvarday Z.F., Martin K.A.C., and Freund T.F. Synaptic targets of HRP-filled layer III pyramidal cells in the cat striate cortex. Experimental Brain Research 64 3 (1986) 541-552
126. Knierim J.J., and van Essen D.C. Neuronal responses to static texture patterns in area V1 of the alert macaque monkey. Journal of Neurophysiology 67 (1992) 961-980
127. Kobatake E., and Tanaka K. Neuronal selectivities to complex object features in the ventral visual pathway of the macaque cerebral cortex. Journal of Neurophysiology 71 3 (1994) 856-867
128. Koenderink J.J., and Richards W. Two-dimensional curvature operators. Journal of the Optical Society of America A 5 7 (1988) 1136-1141
129. Kovacs, Papathomas A., and Feher A. When the brain changes its mind: Interocular grouping during binocular rivalry. Society of Neuroscience Abstracts 22 (1996) 271
130. Kovacs I. Gestalten of today: Early processing of visual contours and surfaces. Behavioural Brain Research 82 1 (1996) 1-11
131. Kovacs I., Feher A., and Julesz B. Medial-point description of shape: A representation for action coding and its psychophysical correlates. Vision Research 38 15-16 (1998) 2323-2333
132. Kovacs I., and Julesz B. A closed curve is much more than an incomplete one-Effect of closure in figure ground segmentation. Proceedings of the National Academy of Sciences of the United States of America 90 16 (1993) 7495-7497
133. Kovacs I., and Julesz B. Perceptual sensitivity maps within globally defined visual shapes. Nature 370 6491 (1994) 644-646
134. Kramer D., and Fahle M. A simple mechanism for detecting low curvatures. Vision Research 36 10 (1996) 1411-1419
135. Lamme V.A.F., and Roelfsema P.R. The distinct modes of vision offered by feedforward and recurrent processing. Trends in Neurosciences 23 11 (2000) 571-579
136. Lamme V.A.F., and Spekreijse H. Feedforward, horizontal, and feedback processing in the visual cortex. Current Opinion in Neurobiology 8 4 (1998) 529-535
137. Laursen A.M., and Rasmussen J.B. Circle ellipse discrimination in man and monkey. Vision Research 15 2 (1975) 173-174
138. Leopold, D. A., Bondar, Mahlknecht, & Logothetis, N. K. (2003). Prototype-referenced encoding of faces in the monkey inferotemporal cortex. Society for Neuroscience Annual Meeting (pp. 590-597).
139. Leopold D.A., O'Toole A.J., Vetter T., and Blanz V. Prototype-referenced shape encoding revealed by high-level after effects. Nature Neuroscience 4 1 (2001) 89-94
140. Levi D.M., and Klein S.A. Equivalent intrinsic blur in amblyopia. Vision Research 30 12 (1990) 1995-2020
141. Levi D.M., and Klein S.A. Seeing circles: What limits shape perception?. Vision Research 40 17 (2000) 2329-2339
142. Levi D.M., Li R.W.H., and Klein S.A. "Phase capture" in the perception of interpolated shape: Cue combination and the influence function. Vision Research 43 21 (2003) 2233-2243
143. Levitt J.B., and Lund J.S. Contrast dependence of contextual effects in primate visual cortex. Nature 387 6628 (1997) 73-76
144. Levitt J.B., and Lund J.S. The spatial extent over which neurons in macaque striate cortex pool visual signals. Visual Neuroscience 19 4 (2002) 439-452
145. Lewis T.L., Ellemberg D., Maurer D., Wilkinson F., Wilson H.R., Dirks M., et al. Sensitivity to global form in glass patterns after early visual deprivation in humans. Vision Research 42 8 (2002) 939-948
146. Li W., and Gilbert C.D. Global contour saliency and local colinear interactions. Journal of Neurophysiology 88 5 (2002) 2846-2856
147. Li W., Thier P., and Wehrhahn C. Contextual influence on orientation discrimination of humans and responses of neurons in V1 of alert monkeys. Journal of Neurophysiology 83 2 (2000) 941-954
148. Li W., Thier P., and Wehrhahn C. Neuronal responses from beyond the classic receptive field in V1 of alert monkeys. Experimental Brain Research 139 4 (2001) 359-365
149. Li Z. A neural model of contour integration in the primary visual cortex. Neural Computation 10 4 (1998) 903-940
150. Loffler G., Bennett D.M., and Gordon G.E. Seeing shapes in noise: tuning characteristics of global shape mechanisms. Journal of Vision 7 9 (2007) 202a
151. Loffler G., Wilson H.R., and Wilkinson F. Local and global contributions to shape discrimination. Vision Research 43 5 (2003) 519-530
152. Loffler G., Yourganov G., Wilkinson F., and Wilson H.R. fMRI evidence for the neural representation of faces. Nature Neuroscience 8 10 (2005) 1386-1390
153. Malach R., Amir Y., Harel M., and Grinvald A. Relationship between intrinsic connections and functional architecture revealed by optical imaging and in-vivo targeted biocytin injections in primate striate cortex. Proceedings of the National Academy of Sciences of the United States of America 90 22 (1993) 10469-10473
154. McGuire B.A., Gilbert C.D., Rivlin P.K., and Wiesel T.N. Targets of horizontal connections in macaque primary visual cortex. Journal of Comparative Neurology 305 3 (1991) 370-392
155. Merigan W.H. Basic visual capacities and shape discrimination after lesions of extrastriate area V4 in macaques. Visual Neuroscience 13 1 (1996) 51-60
156. Milner P.M. A model for visual shape recognition. Psychological review 81 6 (1974) 521-535
157. Morgan M.J. The visual computation of 2-D area by human observers. Vision Research 45 19 (2005) 2564-2570
158. Morgan M.J., and Dresp B. Contrast detection facilitation by spatially separated targets and inducers. Vision Research 35 8 (1995) 1019-1024
159. Morgan M.J., and Watt R.J. The Weber relation for position is not an artefact of eccentricity. Vision Research 29 10 (1989) 1457-1462
160. Nachmias J., and Sainsbury R.V. Grating contrast: Discrimination may be better than detection. Vision Research 14 (1974) 1039-1042
161. Nelson J.I. Binding in the visual system. Handbook of Brain Theory and Neural Networks (1995) 157-159
162. Nelson J.I., and Frost B.J. Intracortical facilitation among co-oriented, co-axially aligned simple cells in cat striate cortex. Experimental Brain Research 61 1 (1985) 54-61
163. Nothdurft H.C., Gallant J.L., and Van Essen D.C. Response modulation by texture surround in primate area V1: Correlates of 'popout' under anesthesia. Visual Neuroscience 16 1 (1999) 15-34
164. Nugent A.K., Keswani R.N., Woods R.L., and Peli E. Contour integration in peripheral vision reduces gradually with eccentricity. Vision Research 43 23 (2003) 2427-2437
165. Ogilvie J., and Daicar E. The perception of curvature. Canadian Journal of Psychology 21 6 (1967) 521-525
166. Parent P., and Zucker S.W. Trace inference, curvature consistency, and curve detection. IEEE Transactions on Pattern Analysis and Machine Intelligence 11 8 (1989) 823-839
167. Pasupathy A., and Connor C.E. Responses to contour features in macaque area V4. Journal of Neurophysiology 82 5 (1999) 2490-2502
168. Pasupathy A., and Connor C.E. Shape representation in area V4: Position-specific tuning for boundary conformation. Journal of Neurophysiology 86 5 (2001) 2505-2519
169. Pasupathy A., and Connor C.E. Population coding of shape in area V4. Nature Neuroscience 5 12 (2002) 1332-1338
170. Pelli D.G. Uncertainty explains many aspects of visual contrast detection and discrimination. Journal of the Optical Society of America. A, Optics and image science 2 9 (1985) 1508-1532
171. Petkov N., and Westenberg M.A. Suppression of contour perception by band-limited noise and its relation to non-classical receptive field inhibition. Biological Cybernetics 88 (2003) 236-246
172. Petrov Y., Verghese, and McKee S.P. The effect of spatial configuration on surround suppression of contrast sensitivity. Journal of Vision 6 3 (2006) 224-238
173. Pettet M.W. Shape and contour detection. Vision Research 39 3 (1999) 551-557
174. Pettet M.W., McKee S.P., and Grzywacz N.M. Constraints on long range interactions mediating contour detection. Vision Research 38 6 (1998) 865-880
175. Poirier F.J.A.M., and Wilson H.R. A biologically plausible model of human radial frequency perception. Vision Research 46 15 (2006) 2443-2455
176. Poirier F.J.A.M., and Wilson H.R. Object perception and masking: Contributions of sides and convexities. Vision Research 47 23 (2007) 3001-3011
177. Polat U. Functional architecture of long-range perceptual interactions. Spatial Vision 12 2 (1999) 143-162
178. Polat U., Mizobe K., Pettet M.W., Kasamatsu T., and Norcia A.M. Collinear stimuliregulate visual responses depending on cell's contrast threshold. Nature 391 6667 (1998) 580-584
179. Polat U., and Sagi D. Lateral interactions between spatial channels-Suppression and facilitation revealed by lateral masking experiments. Vision Research 33 7 (1993) 993-999
180. Polat U., and Sagi D. The architecture of perceptual spatial interactions. Vision Research 34 1 (1994) 73-78
181. Pollen D.A., Przybyszewski A.W., Rubin M.A., and Foote W. Spatial receptive field organization of macaque V4 neurons. Cerebral Cortex 12 6 (2002) 601-616
182. Prins N., Kingdom F.A.A., and Hayes A. Detecting low shape-frequencies in smooth and jagged contours. Vision Research 47 18 (2007) 2390-2402
183. Rainville S.J., Yurganov G., and Wilson H.R. Closed-contour shapes encoded through deviations from circularity in lateral-occipital complex (LOC): An fMRI study. Journal of Vision 5 8 (2005)
184. Regan D., Gray R., and Hamstra S.J. Evidence for a neural mechanism that encodes angles. Vision Research 36 2 (1996) 323-330
185. Regan D., and Hamstra S.J. Shape discrimination and the judgement of perfect symmetry: Dissociation of shape from size. Vision Research 32 10 (1992) 1845-1864
186. Rhodes G., Carey S., Byatt G., and Proffitt F. Coding spatial variations in faces and simple shapes: A test of two models. Vision Research 38 (1998) 2307-2321
187. Rockland K.S., and Lund J.S. Widespread periodic intrinsic connections in the tree shrew visual-cortex. Science 215 4539 (1982) 1532-1534
188. Rockland K.S., and Lund J.S. Intrinsic laminar lattice connections in primate visual cortex. Journal of Comparative Neurology 216 3 (1983) 303-318
189. Saarinen J., and Levi D.M. Effect of contour closure on shape perception. Spatial Vision 12 2 (1999) 227-238
190. Saarinen J., and Levi D.M. Integration of local features into a global shape. Vision Research 41 14 (2001) 1785-1790
191. Saarinen J., Levi D.M., and Shen B. Integration of local pattern elements into a global shape in human vision. Proceedings of the National Academy of Sciences of the United States of America 94 15 (1997) 8267-8271
192. Sary G., Vogels R., and Orban G.A. Cue-invariant shape selectivity of macaque inferior temporal neurons. Science 260 5110 (1993) 995-997
193. Schiller P.H. Effect of lesions in visual cortical area V4 on the recognition of transformed objects. Nature 376 6538 (1995) 342-344
194. Schmidt K.E., Goebel R., Lowel S., and Singer W. The perceptual grouping criterion of colinearity is reflected by anisotropies of connections in the primary visual cortex. European Journal of Neuroscience 9 5 (1997) 1083-1089
195. Schoumans N., and Sittig A.C. Illusory contours and spatial judgment. Perception and Psychophysics 62 6 (2000) 1191-1203
196. Schwartz E.L., Desimone R., Albright T.D., and Gross C.G. Shape recognition and inferior temporal neurons. Proceedings of the National Academy of Sciences of the United States of America 80 181 (1983) 5776-5778
197. Sengpiel F., Troilo D., Kind P.C., Graham B., and Blakemore C. Functional architecture of area 17 in normal and monocularly deprived marmosets (Callithrix jacchus). Visual Neuroscience 13 1 (1996) 145-160
198. Sha'ashua, A., & Ullman, S. (1988). Structural saliency: The detection of globally salient structures using a locally connected network. In Proceedings of the 2nd International Conference on Computer Vision (pp. 321-327), Insbrook Resort.
199. Sigman M., Cecchi G.A., Gilbert C.D., and Magnasco M.O. On a common circle: Natural scenes and gestalt rules. Proceedings of the National Academy of Sciences of the United States of America 98 4 (2001) 1935-1940
200. Sillito A.M., Grieve K.L., Jones H.E., Cudeiro J., and Davis J. Visual cortical mechanisms detecting focal orientation discontinuities. Nature 378 6556 (1995) 492-496
201. Singer W. Neuronal synchrony: A versatile code for the definition of relations?. Neuron 24 1 (1999) 49-65
202. Singer W., and Gray C.M. Visual feature integration and the temporal correlation hypothesis. Annual Review of Neuroscience 18 (1995) 555-586
203. Smits J.T., Vos P.G., and van Oeffelen M.P. The perception of a dotted line in noise: A model of good continuation and some experimental results. Spatial Vision 1 2 (1985) 163-177
204. Snippe H.P., and Koenderink J.J. Discrimination of geometric angle in the fronto-parallel plane. Spatial Vision 8 3 (1994) 309-328
205. Solomon J.A., and Morgan M.J. Facilitation from collinear flanks is cancelled by non-collinear flanks. Vision Research 40 (2000) 279-286
206. Steeves J.K.E., Wilkinson F., Gonzalez E.G., Wilson H.R., and Steinbach M.J. Global shape discrimination at reduced contrast in enucleated observers. Vision Research 44 9 (2004) 943-949
207. Stettler D.D., Das A., Bennett J., and Gilbert C.D. Lateral connectivity and contextual interactions in macaque primary visual cortex. Neuron 36 4 (2002) 739-750
208. Suzuki S. Attention-dependent brief adaptation to contour orientation: A high-level aftereffect for convexity?. Vision Research 41 28 (2001) 3883-3902
209. Suzuki S. Attentional selection of overlapped shapes: A study using brief shape aftereffects. Vision Research 43 5 (2003) 549-561
210. Suzuki S., and Cavanagh P. A shape-contrast effect for briefly presented stimuli. Journal of Experimental Psychology: Human Perception and Performance 24 5 (1998) 1315-1341
211. Tanaka K. Inferotemporal cortex and object vision. Annual Review of Neuroscience 19 (1996) 109-139
212. Toth L.J., Rao S.C., Kim D.S., Somers D., and Sur M. Subthreshold facilitation and suppression in primary visual cortex revealed by intrinsic signal imaging. Proceedings of the National Academy of Sciences of the United States of America 93 18 (1996) 9869-9874
213. Treisman A., and Gormican S. Feature analysis in early vision: Evidence from search asymmetries. Psychological review 95 1 (1988) 15-48
214. Ts'o D.Y., and Gilbert C.D. The organization of chromatic and spatial interactions in the primate striate cortex. Journal of Neuroscience 8 5 (1988) 1712-1727
215. Ts'o D.Y., Gilbert C.D., and Wiesel T.N. Relationships between horizontal interactions and functional architecture in cat striate cortex as revealed by cross-correlational analysis. Journal of Neuroscience 6 4 (1986) 1160-1170
216. Tyler C.W. Periodic vernier acuity. Journal of Physiology 228 3 (1973) 637-647
217. Ullman S. Low-level aspects of segmentation and recognition. Philosophical transactions of the Royal Society of London. Series B: Biological Sciences 337 1281 (1992) 371-379
218. Ungerleider L.G., and Mishkin M. Two cortical visual systems. In: Ingle D.J., Goodale M.A., and Mansfield R.J.W. (Eds). Analysis of visual behaviour (1982), MIT Press, Cambridge, MA 549-586
219. Valentine T. A unified account of the effects of distinctiveness, inversion, and race in face recognition. Quarterly Journal of Experimental Psychology Section A-Human Experimental Psychology 43 2 (1991) 161-204
220. Van Essen D.C., Anderson C.H., and Felleman D.J. Information processing in the primate visual system: An integrated systems perspective. Science 255 5043 (1992) 419-423
221. VanRullen R., Delorme A., and Thorpe S. Feed-forward contour integration in primary visual cortex based on asynchronous spike propagation. Neurocomputing 38-40 (2001) 1003
222. Virsu V., and Taskinen H. Central inhibitory interactions in human vision. Experimental Brain Research 23 1 (1975) 65-74
223. Wallach H. Über visuell wahrgenommene Bewegungsrichtung. Psychologische Forschung 20 (1935) 325-380
224. Wang Y.Z. Effects of aging on shape discrimination. Optometry and Vision Science 78 6 (2001) 447-454
225. Wang Y.Z., and Hess R.F. Contributions of local orientation and position features to shape integration. Vision Research 45 11 (2005) 1375-1383
226. Wang Y.Z., Wilson E., Locke K.G., and Edwards A.O. Shape discrimination in age-related macular degeneration. Investigative Ophthalmology and Visual Science 43 6 (2002) 2055-2062
227. Watt R.J., and Andrews D.P. Contour curvature analysis: Hyperacuities in the discrimination of detailed shape. Vision Research 22 4 (1982) 449-460
228. Watt R.J., Ward R.M., and Casco C. The detection of deviation from straightness in lines. Vision Research 27 9 (1987) 1659-1678
229. Wehrhahn C., and Dresp B. Detection facilitation by collinear stimuli in humans: Dependence on strength and sign of contrast. Vision Research 38 3 (1998) 423-428
230. Weliky M., and Katz L.C. Functional mapping of horizontal connections in developing ferret visual cortex: Experiments and modeling. Journal of Neuroscience 14 12 (1994) 7291-7305
231. Wenderoth P., and Johnstone S. The different mechanisms of the direct and indirect tilt illusions. Vision Research 28 2 (1988) 301-312
232. Wertheimer M. Untersuchungen zur Lehre von der Gestalt, II. Psychologische Forschung 4 (1923) 301-350
233. Westheimer G. Simultaneous orientation contrast for lines in the human fovea. Vision Research 30 11 (1990) 1913-1921
234. Westheimer G., and McKee P. Integration regions for visual hyperacuity. Vision Research 17 1 (1977) 89-93
235. Whitaker D., and McGraw P.V. Geometric representation of the mechanisms underlying human curvature detection. Vision Research 38 24 (1998) 3843-3848
236. Whitaker D., McGraw P.V., Keeble D.R.T., and Skillen J. Pulling the other one: 1st- and 2nd-order visual information interact to determine perceived location. Vision Research 44 3 (2004) 279-286
237. Wilkinson F., James T.W., Wilson H.R., Gati J.S., Menon R.S., and Goodale M.A. An fMRI study of the selective activation of human extrastriate form vision areas by radial and concentric gratings. Current Biology 10 22 (2000) 1455-1458
238. Wilkinson F., Wilson H.R., and Habak C. Detection and recognition of radial frequency patterns. Vision Research 38 22 (1998) 3555-3568
239. Williams C.B., and Hess R.F. Relationship between facilitation at threshold and suprathreshold contour integration. Journal of the Optical Society of America A: Optics and Image Science, and Vision 15 8 (1998) 2046-2051
240. Wilson H.R., and Humanski R. Spatial frequency adaptation and contrast gain control. Vision Research 33 8 (1993) 1133-1149
241. Wilson H.R., Loffler G., and Wilkinson F. Synthetic faces, face cubes, and the geometry of face space. Vision Research 42 (2002) 2909-2923
242. Wilson H.R., McFarlane D.K., and Phillips G.C. Spatial frequency tuning of orientation selective units estimated by oblique masking. Vision Research 23 9 (1983) 873-882
243. Wilson H.R., and Richards W.A. Mechanisms of contour curvature discrimination. Journal of the Optical Society of America A 6 1 (1989) 106-115
244. Wilson H.R., and Richards W.A. Curvature and separation discrimination at texture boundaries. Journal of the Optical Society of America A 9 10 (1992) 1653-1662
245. Wilson H.R., and Wilkinson F. Detection of global structure in glass patterns: Implications for form vision. Vision Research 38 19 (1998) 2933-2947
246. Wilson H.R., and Wilkinson F. Spatial channels in vision and spatial pooling. In: Chapupa L.M., and Werner J.S. (Eds). The visual neurosciences Vol. 2 (2002), MIT Press, Cambridge, MA 1060-1068
247. Wilson H.R., and Wilkinson F. Symmetry perception: A novel approach for biological shapes. Vision Research 42 5 (2002) 589-597
248. Wilson H.R., Wilkinson F., and Asaad W. Concentric orientation summation in human form vision. Vision Research 37 17 (1997) 2325-2330
249. Wilson H.R., Wilkinson F., Lin L.-M., and Castillo M. Perception of head orientation. Vision Research 40 (2000) 459-472
250. Wolfe J.M., Yee A., and Friedman-Hill S.R. Curvature is a basic feature for visual search tasks. Perception 21 4 (1992) 465480
251. Yen S.C., and Finkel L.H. Extraction of perceptually salient contours by striate cortical networks. Vision Research 38 5 (1998) 719-741
252. Young M.P. Objective analysis of the topological organization of the primate cortical visual system. Nature 358 6382 (1992) 152-155
253. Yu C., and Levi D.M. End stopping and length tuning in psychophysical spatial filters. Journal of the Optical Society of America A: Optics and Image Science, and Vision 14 9 (1997) 2346-2354
254. Yu C., and Levi D.M. Spatial facilitation predicted with end-stopped spatial filters. Vision Research 37 22 (1997) 3117-3128
255. Yu C., and Levi D.M. Surround modulation in human vision unmasked by masking experiments. Nature Neuroscience 3 7 (2000) 724-728
256. Zanker J.M., and Quenzer T. How to tell circles from ellipses: Perceiving the regularity of simple shapes. Naturwissenschaften 86 10 (1999) 492-495
257. Zeki S. Colour coding in the cerebral cortex: The reaction of cells in monkey visual cortex to wavelengths and colours. Neuroscience 9 4 (1983) 741-765
258. Zenger B., and Sagi D. Isolating excitatory and inhibitory nonlinear spatial interactions involved in contrast detection. Vision Research 36 16 (1996) 2497-2513
259. Zetzsche C., and Barth E. Fundamental limits of linear filters in the visual processing of 2-dimensional signals. Vision Research 30 7 (1990) 1111-1117