Johan Wagemans

Summary

Affiliation: Katholieke Universiteit Leuven
Country: Belgium

Publications

  1. doi Perceived shape similarity among unfamiliar objects and the organization of the human object vision pathway
    Hans P Op de Beeck
    Laboratory of Experimental Psychology, Katholieke Universiteit Leuven, 3000 Leuven, Belgium
    J Neurosci 28:10111-23. 2008
  2. pmc Identification of everyday objects on the basis of Gaborized outline versions
    Michaël Sassi
    Laboratory of Experimental Psychology, Tiensestraat 102 bus 3711, 3000 Leuven, Belgium
    Iperception 1:121-42. 2010
  3. pmc A computational model of visual anisotropy
    Bart Ons
    Laboratory of Experimental Psychology, University of Leuven, Leuven, Belgium
    PLoS ONE 6:e21091. 2011
  4. pmc Context modulates the ERP signature of contour integration
    Bart Machilsen
    Laboratory of Experimental Psychology, University of Leuven K U Leuven, Leuven, Belgium
    PLoS ONE 6:e25151. 2011
  5. pmc Interaction of depth probes and style of depiction
    Andrea J van Doorn
    Industrial Design, Delft University of Technology, Landbergstraat 15, NL 2628 CE Delft, The Netherlands E mail
    Iperception 3:528-40. 2012
  6. pmc Rank order scaling of pictorial depth
    Andrea van Doorn
    Delft University of Technology, Industrial Design, Landbergstraat 15, NL 2628 CE Delft, The Netherlands Email
    Iperception 2:724-44. 2011
  7. pmc Awareness of the light field: the case of deformation
    Andrea J van Doorn
    Industrial Design Delft University of Technology e mail
    Iperception 3:467-80. 2012
  8. pmc Empirical aesthetics, the beautiful challenge: An introduction to the special issue on Art & Perception
    M Dorothee Augustin
    University of Leuven KU Leuven, Laboratory of Experimental Psychology, Tiensestraat 102, Box 3711, 3000 Leuven, Belgium E mail
    Iperception 3:455-8. 2012
  9. pmc Development of differential sensitivity for shape changes resulting from linear and nonlinear planar transformations
    Bart Ons
    Laboratory of Experimental Psychology, University of Leuven K U Leuven, Tiensestraat 102, Box 3711, BE 3000 Leuven, Belgium E mail
    Iperception 2:121-36. 2011
  10. pmc A developmental difference in shape processing and word-shape associations between 4 and 6.5 year olds
    Bart Ons
    Laboratory of Experimental Psychology, University of Leuven K U Leuven, Tiensestraat 102, Box 3711, 3000 Leuven, Belgium E mail
    Iperception 3:481-94. 2012

Detail Information

Publications105 found, 100 shown here

  1. doi Perceived shape similarity among unfamiliar objects and the organization of the human object vision pathway
    Hans P Op de Beeck
    Laboratory of Experimental Psychology, Katholieke Universiteit Leuven, 3000 Leuven, Belgium
    J Neurosci 28:10111-23. 2008
    ..Thus, for unfamiliar objects, the organization of human object-selective cortex is strongly related to perceived shape, and this shape-based organization emerges gradually throughout the object vision pathway...
  2. pmc Identification of everyday objects on the basis of Gaborized outline versions
    Michaël Sassi
    Laboratory of Experimental Psychology, Tiensestraat 102 bus 3711, 3000 Leuven, Belgium
    Iperception 1:121-42. 2010
    ....
  3. pmc A computational model of visual anisotropy
    Bart Ons
    Laboratory of Experimental Psychology, University of Leuven, Leuven, Belgium
    PLoS ONE 6:e21091. 2011
    ..We discuss the scope of the theory in the context of other anisotropies in perception...
  4. pmc Context modulates the ERP signature of contour integration
    Bart Machilsen
    Laboratory of Experimental Psychology, University of Leuven K U Leuven, Leuven, Belgium
    PLoS ONE 6:e25151. 2011
    ..A modulatory effect of context on contour integration was observed on the N1 component. These results highlight the importance of the context in which contour integration takes place...
  5. pmc Interaction of depth probes and style of depiction
    Andrea J van Doorn
    Industrial Design, Delft University of Technology, Landbergstraat 15, NL 2628 CE Delft, The Netherlands E mail
    Iperception 3:528-40. 2012
    ..They are apparently characteristic of the person. The differences between depths as sampled by the 2 methods depend upon the style of the picture. This is the case for all observers except one...
  6. pmc Rank order scaling of pictorial depth
    Andrea van Doorn
    Delft University of Technology, Industrial Design, Landbergstraat 15, NL 2628 CE Delft, The Netherlands Email
    Iperception 2:724-44. 2011
    ..Perhaps surprisingly, we find no correlation between the number of distinct depth layers and the total metrical depth range. Thus, the relation between subjective magnitude and discrimination threshold fails to hold for pictorial depth...
  7. pmc Awareness of the light field: the case of deformation
    Andrea J van Doorn
    Industrial Design Delft University of Technology e mail
    Iperception 3:467-80. 2012
    ..This is an idiosyncrasy of the human visual system, on par with the fact that visual awareness fails to present the observer with saddle shapes...
  8. pmc Empirical aesthetics, the beautiful challenge: An introduction to the special issue on Art & Perception
    M Dorothee Augustin
    University of Leuven KU Leuven, Laboratory of Experimental Psychology, Tiensestraat 102, Box 3711, 3000 Leuven, Belgium E mail
    Iperception 3:455-8. 2012
    ..The contributions span a wide range of topics, but are all centred around two questions: How can one understand art perception and aesthetics from a psychological point of view, and how is this reflected in art itself?..
  9. pmc Development of differential sensitivity for shape changes resulting from linear and nonlinear planar transformations
    Bart Ons
    Laboratory of Experimental Psychology, University of Leuven K U Leuven, Tiensestraat 102, Box 3711, BE 3000 Leuven, Belgium E mail
    Iperception 2:121-36. 2011
    ....
  10. pmc A developmental difference in shape processing and word-shape associations between 4 and 6.5 year olds
    Bart Ons
    Laboratory of Experimental Psychology, University of Leuven K U Leuven, Tiensestraat 102, Box 3711, 3000 Leuven, Belgium E mail
    Iperception 3:481-94. 2012
    ..When children were distinguishing shapes, new words were paired with the target shapes, and in 2 additional tasks, the acquired name-shape associations were tested. The younger age group was able to remember more words correctly...
  11. pmc Putting reward in art: A tentative prediction error account of visual art
    Sander Van de Cruys
    Laboratory of Experimental Psychology, Tiensestraat 102, 3000 Leuven, Belgium E mail
    Iperception 2:1035-62. 2011
    ..We compare our proposal to other influential theories on aesthetics and explore its advantages and limitations...
  12. pmc A century of Gestalt psychology in visual perception: II. Conceptual and theoretical foundations
    Johan Wagemans
    University of Leuven KU Leuven, Laboratory of Experimental Psychology, Tiensestraat 102, Box 3711, BE 3000 Leuven, Belgium
    Psychol Bull 138:1218-52. 2012
    ..To answer the fundamental question of why things look as they do, a further synthesis of these complementary perspectives is required...
  13. pmc A century of Gestalt psychology in visual perception: I. Perceptual grouping and figure-ground organization
    Johan Wagemans
    University of Leuven KU Leuven, Laboratory of Experimental Psychology, Tiensestraat 102, Box 3711, BE 3000 Leuven, Belgium
    Psychol Bull 138:1172-217. 2012
    ..A better integration of this research tradition with the rest of vision science requires further progress regarding the conceptual and theoretical foundations of the Gestalt approach, which is the focus of a second review article...
  14. pmc The shading cue in context
    Johan Wagemans
    University of Leuven K U Leuven, Laboratory of Experimental Psychology, Tiensestraat 102 bus 3711 3000 Leuven present address Tiensestraat 102 bus 3711 3000 Leuven, Belgium E mail
    Iperception 1:159-78. 2010
    ....
  15. pmc Measuring 3D point configurations in pictorial space
    Johan Wagemans
    University of Leuven, Laboratory of Experimental Psychology, Tiensestraat 102 Box 3711, 3000 Leuven, The Netherlands E mail
    Iperception 2:77-111. 2011
    ..This is expected on the basis of a formal analysis of monocular optical structure. The method will prove useful in a variety of potential applications...
  16. pmc Pictorial depth probed through relative sizes
    Johan Wagemans
    University of Leuven KU Leuven, Laboratory of Experimental Psychology, Tiensestraat 102 Box 3711, BE 3000 Leuven, Belgium E mail
    Iperception 2:992-1013. 2011
    ..We discuss a simple formal framework that allows one to handle individual differences. We also compare the depth scale obtained by way of this method with depth scales obtained in totally different ways, finding generally good agreement...
  17. pmc Towards a new kind of experimental psycho-aesthetics? Reflections on the Parallellepipeda project
    Johan Wagemans
    University of Leuven K U Leuven, Laboratory of Experimental Psychology, Tiensestraat 102 Box 3711, BE 3000 Leuven, Belgium E mail
    Iperception 2:648-78. 2011
    ....
  18. ncbi Identification of everyday objects on the basis of silhouette and outline versions
    Johan Wagemans
    Department of Psychology, University of Leuven, Tiensestraat 102, B 3000 Leuven, Belgium
    Perception 37:207-44. 2008
    ....
  19. ncbi Introduction to Michotte's heritage in perception and cognition research
    Johan Wagemans
    Laboratory of Experimental Psychology, University of Leuven, Tiensestraat 102, B 3000 Leuven, Belgium
    Acta Psychol (Amst) 123:1-19. 2006
    ..We hope that the papers in this special issue will serve both to celebrate Michotte's heritage in this respect, and to inspire other investigators to continue the projects he began...
  20. doi The visual word form area is organized according to orthography
    Wouter Braet
    Laboratory of Experimental Psychology, University of Leuven, Belgium
    Neuroimage 59:2751-9. 2012
    ..Given the relationships between the internal organization and how visual input is processed in a brain region, our findings provide important constraints for computational models of how visual word forms are represented in the brain...
  21. doi Single trial ERP reading based on parallel factor analysis
    Katrien Vanderperren
    Department of Electrical Engineering, ESAT SCD, Katholieke Universiteit Leuven, Leuven, Belgium
    Psychophysiology 50:97-110. 2013
    ..Despite the need for parameter tuning and careful preprocessing, the approach is shown to be successful, especially when prior knowledge about the expected ERPs is incorporated...
  22. doi Multiple scales of organization for object selectivity in ventral visual cortex
    Marijke Brants
    Laboratory of Biological Psychology, University of Leuven K U Leuven, Leuven, Belgium
    Neuroimage 56:1372-81. 2011
    ..This finding confirms the existence of multiple scales of organization in the ventral visual pathway...
  23. doi The influence of orientation jitter and motion on contour saliency and object identification
    Geir Eliassen Nygård
    Laboratory of Experimental Psychology, University of Leuven, B 3000 Leuven, Belgium
    Vision Res 49:2475-84. 2009
    ..Both contour properties ("good continuation") and object properties (identifiability) had a positive effect on detection and reaction time for identification...
  24. doi Offside decision making of assistant referees in the English Premier League: impact of physical and perceptual-cognitive factors on match performance
    Peter Catteeuw
    Department of Biomedical Kinesiology, Katholieke Universiteit Leuven, Leuven, Belgium
    J Sports Sci 28:471-81. 2010
    ..The increased awareness of factors involved in offside decision making and the instructions to give the benefit of the doubt to attackers could have contributed to this situation...
  25. doi Offside decision making in the 2002 and 2006 FIFA World Cups
    Peter Catteeuw
    Department of Biomedical Kinesiology, Katholieke Universiteit Leuven, Leuven, Belgium
    J Sports Sci 28:1027-32. 2010
    ..Overall, quality of offside decisions was not influenced by the position of the assistant referee relative to the offside line. In addition, flag errors can best be explained by the perceptual illusion induced by the flash-lag effect...
  26. doi Time-course contingencies in perceptual organization and identification of fragmented object outlines
    Sven Panis
    Laboratory of Experimental Psychology, University of Leuven, Leuven, Belgium
    J Exp Psychol Hum Percept Perform 35:661-87. 2009
    ..This new insight can explain why different studies on shape-based object identification have produced seemingly contradictory results...
  27. doi The representation of subordinate shape similarity in human occipitotemporal cortex
    Sven Panis
    Laboratory of Experimental Psychology, University of Leuven, Belgium
    J Vis 8:9.1-15. 2008
    ..Together, these results suggest a narrow tuning in object-selective cortex for individual exemplars from natural object categories, consistent with an exemplar-based encoding principle...
  28. ncbi Identification of everyday objects on the basis of fragmented outline versions
    Sven Panis
    Laboratory of Experimental Psychology, University of Leuven, Tiensestraat 102, B 3000 Leuven, Belgium
    Perception 37:271-89. 2008
    ....
  29. ncbi Detection of symmetry and repetition in one and two objects. Structures versus strategies
    Arno Koning
    University of Leuven, Belgium
    Exp Psychol 56:5-17. 2009
    ..We conclude that structural coding, not matching strategies, underlies the one-object advantage for symmetry and the two-objects advantage for repetition...
  30. doi Impaired texture segregation but spared contour integration following damage to right posterior parietal cortex
    Kathleen Vancleef
    Laboratory of Experimental Psychology, University of Leuven, Tiensestraat 102, Box 3711, 3000 Leuven, Belgium
    Exp Brain Res 230:41-57. 2013
    ..These results indicate that texture segregation is modulated by attention-related brain areas in the right posterior parietal cortex. ..
  31. ncbi Both predictability and familiarity facilitate contour integration
    Michaël Sassi
    Laboratory of Experimental Psychology, University of Leuven, Leuven, Belgium
    J Vis 14:11. 2014
    ..However, we found that their facilitatory effects did not differ between central and peripheral vision and thus cannot explain that particular discrepancy in the literature...
  32. doi The "side" matters: how configurality is reflected in completion
    Naoki Kogo
    a Laboratory of Experimental Psychology, University of Leuven, Belgium
    Cogn Neurosci 4:31-45. 2013
    ..The implications of this result to the general property of emerging Gestalt percepts are discussed. ..
  33. doi Crowding with conjunctions of simple features
    Endel Põder
    Laboratory of Experimental Psychology, University of Leuven, Leuven, Belgium
    J Vis 7:23.1-12. 2007
    ..Feature errors were not purely random, but biased by the features of distractors. We propose a simple feature integration model that predicts most of the observed regularities...
  34. doi The representation of perceived shape similarity and its role for category learning in monkeys: a modeling study
    Hans P Op de Beeck
    Laboratory of Experimental Psychology, University of Leuven, Tiensestraat 102, B 3000 Leuven, Belgium
    Vision Res 48:598-610. 2008
    ..These results show the intimate link between category learning and perceived similarity as represented in IT cortex...
  35. ncbi Texture and object motion in slant discrimination: failure of reliability-based weighting of cues may be evidence for strong fusion
    Pedro Rosas
    Katholieke Universiteit Leuven, Leuven, Belgium
    J Vis 7:3. 2007
    ..Furthermore, the fitted motion thresholds as a function of texture type are correlated with the slant thresholds as a function of texture type. One interpretation of such a finding is a strong coupling of cues...
  36. doi Activation of fusiform face area by Greebles is related to face similarity but not expertise
    Marijke Brants
    University of Leuven K U Leuven, Belgium
    J Cogn Neurosci 23:3949-58. 2011
    ..This indicates that the activity in the FFA for Greebles does not depend on the degree of expertise acquired with the objects but on the interpretation of the stimuli as face-related...
  37. doi Subordinate categorization enhances the neural selectivity in human object-selective cortex for fine shape differences
    Celine R Gillebert
    University of Leuven K U Leuven, Belgium
    J Cogn Neurosci 21:1054-64. 2009
    ..This result indicates that the task context during training modulates the extent to which object selectivity is enhanced as a result of training...
  38. doi Object form discontinuity facilitates displacement discrimination across saccades
    Maarten Demeyer
    Laboratory of Experimental Psychology, Leuven, Belgium
    J Vis 10:17. 2010
    ..We conclude that a strong assumption of visual stability underlies the suppression of transsaccadic change detection performance, the rejection of which generalizes from stimulus form to stimulus position...
  39. doi Transsaccadic identification of highly similar artificial shapes
    Maarten Demeyer
    Laboratory of Experimental Psychology, University of Leuven, B 3000 Leuven, Belgium
    J Vis 9:28.1-14. 2009
    ....
  40. ncbi Parametric integration of visual form across saccades
    Maarten Demeyer
    Laboratory of Experimental Psychology, University of Leuven, Tiensestraat 102, B 3000 Leuven, Belgium
    Vision Res 50:1225-34. 2010
    ..We conclude that integration of parametric visual form information occurs across saccades, but that it relies on a quickly decaying and maskable visual memory...
  41. ncbi Similarity, typicality, and category-level matching of morphed outlines of everyday objects
    Sven Panis
    Laboratory of Experimental Psychology, University of Leuven, Tiensestraat 102, B 3000 Leuven, Belgium
    Perception 37:1822-49. 2008
    ....
  42. ncbi Texture and haptic cues in slant discrimination: reliability-based cue weighting without statistically optimal cue combination
    Pedro Rosas
    Department of Psychology, University of Leuven, Tiensestraat 102, B 3000 Leuven, Belgium
    J Opt Soc Am A Opt Image Sci Vis 22:801-9. 2005
    ..Our results show that the weights for the cues were generally sensitive to their reliability but fell short of statistically optimal combination--we find reliability-based reweighting but not statistically optimal cue combination...
  43. doi The "why" and "how" of JointICA: results from a visual detection task
    Bogdan Mijovic
    Katholieke Universiteit Leuven, Department of Electrical Engineering, ESAT SCD, Leuven, Belgium
    Neuroimage 60:1171-85. 2012
    ..The performance of the algorithm in all the experiments is validated based on results from previous studies...
  44. doi The emergent property of border-ownership and the perception of illusory surfaces in a dynamic hierarchical system
    Naoki Kogo
    a Laboratory of Experimental Psychology, University of Leuven, Leuven, Belgium
    Cogn Neurosci 4:54-61. 2013
    ..In this reply, we explain our position on a dynamic feedback system reflecting the global configuration, and clarify our view on completion, by examining the example figures and neurophysiological data indicated in the commentaries. ..
  45. doi The role of vertical mirror symmetry in visual shape detection
    Bart Machilsen
    Laboratory of Experimental Psychology, University of Leuven, Leuven, Belgium
    J Vis 9:11.1-11. 2009
    ..Across the different noise levels, symmetric shapes were easier to detect than asymmetric ones. This finding indicates that vertical mirror symmetry is indeed used as a cue in perceptual grouping...
  46. ncbi Eccentric grouping by proximity in multistable dot lattices
    Lizzy Bleumers
    Laboratory of Experimental Psychology, Department of Psychology, Faculty of Psychology and Educational Sciences, K U Leuven, Tiensestraat 102, B 3000 Leuven, Belgium
    Vision Res 48:179-92. 2008
    ....
  47. doi Advance information modulates the global effect even without instruction on where to look
    Frouke Hermens
    Laboratory of Experimental Psychology, University of Leuven, Tiensestraat 102, Bus 3711, 3000 Leuven, Belgium
    Exp Brain Res 226:639-48. 2013
    ....
  48. doi Emergence of perceptual Gestalts in the human visual cortex: the case of the configural-superiority effect
    Jonas Kubilius
    University of Leuven, Leuven 3000, Belgium
    Psychol Sci 22:1296-303. 2011
    ..These results show how at least some Gestalt phenomena in vision emerge only at the higher stages of visual information processing and suggest that feed-forward processing might be sufficient to produce such phenomena...
  49. pmc Perceptual grouping of object contours survives saccades
    Maarten Demeyer
    Laboratory of Experimental Psychology, University of Leuven K U Leuven, Leuven, Belgium
    PLoS ONE 6:e21257. 2011
    ..We conclude that an intermediate-level description of object shape persists in the visual system across gaze shifts, providing it with a robust basis for balancing efficiency and continuity during scene exploration...
  50. doi Modelling contrast discrimination data suggest both the pedestal effect and stochastic resonance to be caused by the same mechanism
    Robbe L T Goris
    Laboratory for Experimental Psychology, University of Leuven, Tiensestraat, Leuven, Belgium
    J Vis 8:17.1-21. 2008
    ....
  51. pmc A new perceptual bias reveals suboptimal population decoding of sensory responses
    Tom Putzeys
    Laboratory of Experimental Psychology, University of Leuven, Leuven, Belgium
    PLoS Comput Biol 8:e1002453. 2012
    ....
  52. doi Removal of BCG artifacts from EEG recordings inside the MR scanner: a comparison of methodological and validation-related aspects
    Katrien Vanderperren
    Katholieke Universiteit Leuven, Department of Electrical Engineering, ESAT SCD, Leuven, Belgium
    Neuroimage 50:920-34. 2010
    ..Moreover, applying OBS prior to ICA can optimize the data quality even more, but caution is recommended since the effect of the additional ICA step may be strongly subject-dependent...
  53. doi Decision-making skills, role specificity, and deliberate practice in association football refereeing
    Peter Catteeuw
    Department of Biomedical Kinesiology, Katholieke Universiteit Leuven, Leuven, Belgium
    J Sports Sci 27:1125-36. 2009
    ..The results support role specificity in association football refereeing. Further research should help to create role-specific perception and decision-making training programmes both for referees and assistant referees...
  54. doi Increased Stroop interference with better second-language reading skill
    Wouter Braet
    Laboratory of Experimental Psychology, University of Leuven, Tiensestraat 102, Leuven, Belgium
    Q J Exp Psychol (Hove) 64:596-607. 2011
    ..We suggest that the lack of consistency in the results of earlier studies may be due, at least in part, to these studies looking at Stroop interference in isolation, rather than comparing interference between languages...
  55. doi Disturbed interplay between mid- and high-level vision in ASD? Evidence from a contour identification task with everyday objects
    Kris Evers
    Laboratory of Experimental Psychology, KU Leuven, Tiensestraat 102, Box 3711, 3000, Leuven, Belgium
    J Autism Dev Disord 44:801-15. 2014
    ..Together, our results suggest that the interplay between local and global processes and between bottom-up and top-down processes is disturbed in ASD. ..
  56. doi The influence of orientation and contrast flicker on contour saliency of outlines of everyday objects
    Geir Eliassen Nygård
    Laboratory of Experimental Psychology, University of Leuven K U Leuven, Belgium
    Vision Res 51:65-73. 2011
    ..In addition, we found that object properties, such as identity and complexity, affected detection performance...
  57. doi Component processes in contour integration: a direct comparison between snakes and ladders in a detection and a shape discrimination task
    Kathleen Vancleef
    Laboratory of Experimental Psychology, University of Leuven, Leuven, Belgium Electronic address
    Vision Res 92:39-46. 2013
    ..By applying a generalized linear mixed model we found that differences in snake and ladder processing are not limited to a detection stage but are also apparent at a shape encoding stage...
  58. doi An anxiety-induced bias in the perception of a bistable point-light walker
    Sander Van de Cruys
    Laboratory of Experimental Psychology, University of Leuven, Belgium Electronic address
    Acta Psychol (Amst) 144:548-53. 2013
    ..We discuss reasons for this divergence and possible limitations of the current study. ..
  59. doi Perceptual wholes can reduce the conscious accessibility of their parts
    Ervin Poljac
    Laboratory of Experimental Psychology, University of Leuven K U Leuven, Belgium
    Cognition 123:308-12. 2012
    ....
  60. doi Dynamic norm-based encoding for unfamiliar shapes in human visual cortex
    Sven Panis
    University of Leuven K U Leuven, Belgium
    J Cogn Neurosci 23:1829-43. 2011
    ....
  61. ncbi Perceptual grouping in Gabor lattices: proximity and alignment
    Peter M Claessens
    University of Leuven, Leuven, Belgium
    Percept Psychophys 67:1446-59. 2005
    ..In light of these results, we further motivate the relevance of these stimuli and the associated experimental paradigm...
  62. ncbi Identification of everyday objects on the basis of kinetic contours
    Katrien Segaert
    Department of Psychology, University of Leuven, Belgium
    Vision Res 49:417-28. 2009
    ..A linear increase in either the speed difference or the direction difference caused a linear decrease in RT for correct identification. In addition, the combination of speed and motion differences appeared to be super-additive...
  63. doi Some observations on contrast detection in noise
    Robbe L T Goris
    Laboratory for Experimental Psychology, University of Leuven, Leuven, Belgium
    J Vis 8:4.1-15. 2008
    ..Both simple uncertainty reduction and an energy discrimination strategy can be excluded as possible explanations for this effect. We present a quantitative model consistent with the effects and discuss the implications...
  64. doi Dynamic prototypicality effects in visual search
    Greet Kayaert
    Laboratory of Experimental Psychology, University of Leuven K U Leuven, Tiensestraat 102, Bus 3711, B 3000 Leuven, Belgium
    J Exp Psychol Gen 140:506-19. 2011
    ..In general, we show that the prototypical status of a stimulus in visual search is a highly dynamic property, depending on the distribution of stimuli within a shape space but not on familiarity with the prototype...
  65. doi Delayed shape matching benefits from simplicity and symmetry
    Greet Kayaert
    Laboratory of Experimental Psychology, University of Leuven, Tiensestraat 102, B 3000 Leuven, Belgium
    Vision Res 49:708-17. 2009
    ..Thus, we show that simplicity in general and symmetry in particular enhance the short-term recognition of unfamiliar shapes...
  66. ncbi Segmentation of object outlines into parts: a large-scale integrative study
    Joeri De Winter
    Department of Psychology, University of Leuven, Tiensestraat 102, B 3000 Leuven, Belgium
    Cognition 99:275-325. 2006
    ..Based on these results, a framework is presented in which all of the previously proposed (and now empirically validated) segmentation rules or rules for part formation are integrated...
  67. ncbi The effect of category learning on the representation of shape: dimensions can be biased but not differentiated
    Hans Op de Beeck
    Lab for Neuro and Psychophysiology, University of Leuven, Leuven, Belgium
    J Exp Psychol Gen 132:491-511. 2003
    ..Thus, category learning is capable of biasing separable shape dimensions but does not alter the status of dimensions in the visual system as either separable or integral...
  68. doi Subjectively interpreted shape dimensions as privileged and orthogonal axes in mental shape space
    Bart Ons
    Laboratory of Experimental Psychology, University of Leuven, Tiensestraat 102 bus 3711, B 3000 Leuven, Belgium
    J Exp Psychol Hum Percept Perform 37:422-41. 2011
    ..The implications of these findings for shape-based object processing are discussed...
  69. pmc Grouping by proximity in haptic contour detection
    Krista E Overvliet
    Laboratory of Experimental Psychology, University of Leuven KU Leuven, Leuven, Belgium
    PLoS ONE 8:e65412. 2013
    ..Moreover, this was the case independent of the contour/background ratio. We conclude that the Gestalt law of proximity applies to haptic contour detection...
  70. ncbi The distributed representation of random and meaningful object pairs in human occipitotemporal cortex: the weighted average as a general rule
    Annelies Baeck
    Laboratory of Biological Psychology, University of Leuven KU Leuven, Tiensestraat 102, 3000 Leuven, Belgium
    Neuroimage 70:37-47. 2013
    ..A weighted average thus relates the response patterns of object pairs to the response patterns of single objects, even when the objects interact...
  71. pmc Spatial arrangement in texture discrimination and texture segregation
    Kathleen Vancleef
    Laboratory of Experimental Psychology, University of Leuven KU Leuven, Tiensestraat 102, Box 3711, BE 3000 Leuven, Belgium E mail
    Iperception 4:36-52. 2013
    ....
  72. doi Perceptual grouping in haptic search: the influence of proximity, similarity, and good continuation
    Krista E Overvliet
    University of Leuven, Laboratory of Experimental Psychology, Tiensestraat 102 Box 3711, B 3000 Leuven, Belgium
    J Exp Psychol Hum Percept Perform 38:817-21. 2012
    ..PsycINFO Database Record (c) 2012 APA, all rights reserved)...
  73. pmc Integrating biological motion: the role of grouping in the perception of point-light actions
    Ervin Poljac
    Laboratory of Experimental Psychology, University of Leuven K U Leuven, Leuven, Belgium
    PLoS ONE 6:e25867. 2011
    ..These results provide evidence that Gestalt principles of good continuity and similarity also apply to more complex and dynamic meaningful stimuli...
  74. doi Integration of contour and surface information in shape detection
    Bart Machilsen
    Laboratory of Experimental Psychology, University of Leuven, Leuven, Belgium
    Vision Res 51:179-86. 2011
    ..Results from Experiment 2 indicate that participants applied a combination rule that was better than mere probability summation. We found no evidence against the integration rule...
  75. doi A Bayesian framework for cue integration in multistable grouping: Proximity, collinearity, and orientation priors in zigzag lattices
    Peter M E Claessens
    Laboratory of Experimental Psychology, Department of Psychology, University of Leuven, Belgium
    J Vis 8:33.1-23. 2008
    ..H. Elder & R. M. Goldberg, 2002). The potential of hierarchically extended Bayes models for a better understanding of principles in cue integration is discussed...
  76. ncbi The awakening of Attneave's sleeping cat: identification of everyday objects on the basis of straight-line versions of outlines
    Joeri De Winter
    Laboratory of Experimental Psychology, University of Leuven, Tiensestraat 102, B 3000 Leuven, Belgium
    Perception 37:245-70. 2008
    ..Results are discussed in relation to Attneave's original hypotheses as well as in the light of more recent theories on shape perception and object identification...
  77. doi Linking depth to lightness and anchoring within the differentiation-integration formalism
    Naoki Kogo
    Katholieke Universiteit Leuven, Laboratory of Experimental Psychology, B 3000 Leuven, Belgium
    Vision Res 50:1486-500. 2010
    ..By applying the same principles to simple figures consisting of black and white areas of different size ratios, the model succeeded in reproducing published empirical results on lightness anchoring (Li & Gilchrist, 1999)...
  78. doi Sex differences in human virtual water maze performance: novel measures reveal the relative contribution of directional responding and spatial knowledge
    Daniel G Woolley
    Department of Biomedical Kinesiology, Research Centre for Movement Control and Neuroplasticity, KU Leuven, Heverlee, Belgium
    Behav Brain Res 208:408-14. 2010
    ..Instead, the largest sex differences were observed during the initial trajectory phase of the trial, which is thought to depend on effective processing of distal features of the environment...
  79. ncbi The effects of mirror reflections and planar rotations of pictures on the shape percept of the depicted object
    Els V K Cornelis
    Industrial Design, Delft University of Technology, Landbergstraat 15, 2628 CC Delft, The Netherlands
    Perception 38:1439-66. 2009
    ..In all cases, the differences between the pictorial reliefs could be resolved by affine transformations, and could thus be ascribed to different solutions of the depth ambiguities inherent in pictures...
  80. ncbi Perception-action coupling during bimanual coordination: the role of visual perception in the coalition of constraints that govern bimanual action
    Stephan P Swinnen
    Laboratory of Motor Control, Department of Kinesiology, K U Leuven, Tervuursevest 101, B 3001 Heverlee, Belgium
    J Mot Behav 36:394-8, 402-7; discussion 408-17. 2004
    ....
  81. ncbi The influence of motion coherence manipulations on the synchronization level of a perception-action task
    Tanja Ceux
    Motor Learning Laboratory, Department of Kinesiology, Faculty of Kinesiology and Rehabilitation Sciences, Katholieke Universiteit Leuven, Tervuursevest 101, 3001 Leuven, Belgium
    Behav Brain Res 162:83-9. 2005
    ..In general, these findings highlighted the impact of the perception of motion based on the level of motion coherence in the visual signal on the synchronization behavior in a perception-action setting...
  82. ncbi Embodied simulation and the meaning of facial expression in autism
    Kris Evers
    Laboratory of Experimental Psychology, University of Leuven K U Leuven, Belgium www gestaltrevision be
    Behav Brain Sci 33:445-6. 2010
    ..Second, there is no room for subjective and high-level conceptual processes in the model. Third, disentangling the different stages in the model is very difficult...
  83. doi Picasso in the mind's eye of the beholder: three-dimensional filling-in of ambiguous line drawings
    Jan Koenderink
    University of Leuven KU Leuven, Laboratory of Experimental Psychology, Belgium
    Cognition 125:394-412. 2012
    ..Observers also freely insert "template knowledge" about the structure of familiar generic objects...
  84. doi Generalization of visual shapes by flexible and simple rules
    Bart Ons
    Laboratory of Experimental Psychology, University of Leuven K U Leuven, Tiensestraat 102, P O Box 3711, B 3000 Leuven, Belgium
    Seeing Perceiving 25:237-61. 2012
    ....
  85. ncbi Perceptual saliency of points along the contour of everyday objects: a large-scale study
    Joeri De Winter
    University of Leuven, Leuven, Belgium
    Percept Psychophys 70:50-64. 2008
    ..A point is more salient when the two line segments connecting it with its two neighboring salient points make a sharp turning angle and when the 2-D part defined by the triplet of salient points is less compact and sticks out more...
  86. doi Switching dynamics of border ownership: a stochastic model for bi-stable perception
    Naoki Kogo
    Katholieke Universiteit Leuven, Laboratory of Experimental Psychology, Leuven, Belgium
    Vision Res 51:2085-98. 2011
    ..In this framework, the adaptation and the recovery processes need to be perception dependent (not physical input dependent) to reproduce human perception...
  87. ncbi Synchronising horizontal arm movement with transparent motion
    Lizzy Bleumers
    Laboratory of Experimental Psychology, Department of Psychology, Faculty of Psychology and Educational Sciences, K U Leuven, Tiensestraat 102, B 3000 Leuven, Belgium
    Behav Brain Res 173:199-204. 2006
    ..Overall, these results suggest that colour can serve as a strong top-down cue for proper target selection and tracking, provided that bottom-up motion signals are sufficiently strong...
  88. doi Surface construction by a 2-D differentiation-integration process: a neurocomputational model for perceived border ownership, depth, and lightness in Kanizsa figures
    Naoki Kogo
    Laboratory of Experimental Psychology, Katholieke Universiteit Leuven, Leuven, Belgium
    Psychol Rev 117:406-39. 2010
    ....
  89. doi Distributed subordinate specificity for bodies, faces, and buildings in human ventral visual cortex
    Hans P Op de Beeck
    Laboratory of Experimental Psychology, University of Leuven K U Leuven, Belgium Laboratory of Biological Psychology, University of Leuven K U Leuven, Leuven, Belgium
    Neuroimage 49:3414-25. 2010
    ....
  90. ncbi Contour-based object identification and segmentation: stimuli, norms and data, and software tools
    Joeri De Winter
    University of Leuven, Leuven, Belgium
    Behav Res Methods Instrum Comput 36:604-24. 2004
    ..g., priming, agnosia, perceptual organization, and picture naming). The full set of norms, data, and stimuli may be downloaded from www.psychonomic.org/archive/...
  91. pmc Depth
    Jan J Koenderink
    University of Leuven K U Leuven, Laboratory of Experimental Psychology, Tiensestraat 102 Box 3711, BE 3000 Leuven, Belgium, and Delft University of Technology, EEMCS, MMI, Mekelweg 4, NL 2628 CD Delft, The Netherlands E mail
    Iperception 2:541-64. 2011
    ..We introduce a number of general ways to design and implement methods of geodesy in pictorial space, and discuss some basic problems associated with such measurements. We deal mainly with conceptual issues...
  92. pmc Artful terms: A study on aesthetic word usage for visual art versus film and music
    M Dorothee Augustin
    Laboratory of Experimental Psychology, University of Leuven KU Leuven, Tiensestraat 102, Box 3711, 3000 Leuven, Belgium E mail
    Iperception 3:319-37. 2012
    ..The results render important information about aesthetic word usage in the realm of the arts and may serve as a starting point to develop tailored measurement instruments for different art forms...
  93. ncbi The concavity effect is a compound of local and global effects
    Joachim Vandekerckhove
    University of Leuven, Department of Psychology, Leuven, Belgium
    Percept Psychophys 69:1253-60. 2007
    ..For our data analysis, we used a nonparametric bootstrap method, which greatly increases sensitivity (compared to more traditional analyses like ANOVA)...
  94. ncbi Low-level correlations between object properties and viewpoint can cause viewpoint-dependent object recognition
    Maarten Demeyer
    University of Leuven, Belgium
    Spat Vis 20:79-106. 2007
    ..We conclude that low-level correlations do exist prior to object recognition, and can offer an explanation for some viewpoint effects on the discrimination of metrically manipulated 3-D objects...
  95. pmc Infants and toddlers show enlarged visual sensitivity to nonaccidental compared with metric shape changes
    Greet Kayaert
    Laboratory of Experimental Psychology, University of Leuven, Tiensestraat 102, B 3000, Leuven, Belgium E mail
    Iperception 1:149-58. 2010
    ....
  96. doi All is beautiful? Generality vs. specificity of word usage in visual aesthetics
    M Dorothee Augustin
    Laboratory of Experimental Psychology, University of Leuven, Belgium
    Acta Psychol (Amst) 139:187-201. 2012
    ..Such a common vocabulary should facilitate the development of cross-disciplinary models of aesthetics and create a basis for the construction of standardised aesthetic measures...
  97. doi What is required for a signal to be qualified as a 'grouping' tag?
    Naoki Kogo
    Laboratory of Experimental Psychology, University of Leuven K U Leuven, Belgium
    Br J Psychol 102:676-81; author reply 682-3. 2011
    ..Instead, the perception of the illusory contours corresponds to the existence of border-ownership signals, which reflect the global configuration of the image...
  98. ncbi Ambiguous figures: living versus nonliving objects
    Ilse M Verstijnen
    Laboratory of Experimental Psychology, Department of Psychology, University of Leuven, Tiensestraat 102, B 3000 Leuven, Belgium
    Perception 33:531-46. 2004
    ..The bias found with figures of living objects may be explained on the basis of top-down processes. For nonliving figures, an hypothesis based on bottom-up processes like neural fatigue was considered but rejected...
  99. ncbi Some observations on the effects of slant and texture type on slant-from-texture
    Pedro Rosas
    Department of Psychology, University of Leuven, Tiensestraat 102, B 3000 Leuven, Belgium
    Vision Res 44:1511-35. 2004
    ....
  100. ncbi Mental rotation versus invariant features in object perception from different viewpoints: an fMRI study
    Jan Vanrie
    Department of Psychology, University of Leuven, Tiensestraat 102, B 3000 Leuven, Belgium
    Neuropsychologia 40:917-30. 2002
    ..Furthermore, some areas were activated uniquely by the rotation condition, probably reflecting the additional processes apparent in the behavioral response patterns...
  101. ncbi Perceptual-motor adaptations in a synchronization task: the joint effects of frequency and motion coherence manipulations
    Tanja Ceux
    Department of Biomedical Kinesiology, Motor Learning Laboratory, Faculty of Kinesiology and Rehabilitation Sciences, Katholieke Universiteit Leuven, Tervuursevest 101, 3001 Leuven, Belgium
    Behav Brain Res 168:226-35. 2006
    ..In general, these findings provided evidence for the important role of perceptual constraints on perception-action coupling in this type of synchronization task...