H R Wilson

Summary

Affiliation: York University
Country: Canada

Publications

  1. doi request reprint Hysteresis effects in stereopsis and binocular rivalry
    Athena Buckthought
    Centre for Vision Research, York University, Computer Science Building, Room B0002E, 4700 Keele Street, Toronto, Ont, Canada M3J 1P3
    Vision Res 48:819-30. 2008
  2. pmc Face context advantage explained by vernier and separation discrimination acuity
    Michael Vesker
    Department of Biology, Centre for Vision Research, York University Toronto, ON, Canada
    Front Psychol 3:617. 2012
  3. doi request reprint Visual bandwidths for face orientation increase during healthy aging
    Hugh R Wilson
    Centre for Vision Research, York University, Toronto, Canada
    Vision Res 51:160-4. 2011
  4. pmc Computational evidence for a rivalry hierarchy in vision
    Hugh R Wilson
    Centre for Vision Research and Department of Biology, York University, 4700 Keele Street, Toronto, ON, Canada M3J 1P3
    Proc Natl Acad Sci U S A 100:14499-503. 2003
  5. ncbi request reprint Minimal physiological conditions for binocular rivalry and rivalry memory
    Hugh R Wilson
    Centre for Vision Research, York University, Toronto, Ont, Canada
    Vision Res 47:2741-50. 2007
  6. ncbi request reprint Learning alters local face space geometry
    Hugh R Wilson
    Department of Biology and Centre for Vision Research, York University, Toronto, Ont, Canada M3J 1P3
    Vision Res 46:4143-51. 2006
  7. ncbi request reprint Symmetry perception: a novel approach for biological shapes
    Hugh R Wilson
    Centre for Vision Research, 103 Farquharson, York University, Toronto, Ontario, Canada
    Vision Res 42:589-97. 2002
  8. ncbi request reprint Dynamics of travelling waves in visual perception
    H R Wilson
    Biology and Centre for Vision Research, York University, 4700 Keele Street, Toronto, Ontario M3J 1P3, Canada
    Nature 412:907-10. 2001
  9. ncbi request reprint An inverse oblique effect in human vision
    H R Wilson
    Centre for Vision Research, York University, 103 Farquharson, 4700 Keele Street, Toronto, Ont, Canada M3J 1P3
    Vision Res 41:1749-53. 2001
  10. doi request reprint Binocular rivalry: neurons unwire when they can't simultaneously fire
    Hugh R Wilson
    Centre for Vision Research, York University, Toronto, Ontario, Canada
    Curr Biol 20:R715-7. 2010

Research Grants

Detail Information

Publications43

  1. doi request reprint Hysteresis effects in stereopsis and binocular rivalry
    Athena Buckthought
    Centre for Vision Research, York University, Computer Science Building, Room B0002E, 4700 Keele Street, Toronto, Ont, Canada M3J 1P3
    Vision Res 48:819-30. 2008
    ..The results are consistent with a cortical model which includes positive feedback and recurrent inhibition between neural units representing different eyes and orientations...
  2. pmc Face context advantage explained by vernier and separation discrimination acuity
    Michael Vesker
    Department of Biology, Centre for Vision Research, York University Toronto, ON, Canada
    Front Psychol 3:617. 2012
    ..Deficiencies in these measurements may also play a role in prosopagnosia. Additionally, we show interference of the eyebrows with the face-inversion effect for interocular discrimination...
  3. doi request reprint Visual bandwidths for face orientation increase during healthy aging
    Hugh R Wilson
    Centre for Vision Research, York University, Toronto, Canada
    Vision Res 51:160-4. 2011
    ..Thus, high levels of form vision degrade in parallel with higher levels of motion perception and likely result from similar causes...
  4. pmc Computational evidence for a rivalry hierarchy in vision
    Hugh R Wilson
    Centre for Vision Research and Department of Biology, York University, 4700 Keele Street, Toronto, ON, Canada M3J 1P3
    Proc Natl Acad Sci U S A 100:14499-503. 2003
    ..This result provides a synthesis of competing rivalry theories and suggests that neural competition may be a general characteristic throughout the form-vision hierarchy...
  5. ncbi request reprint Minimal physiological conditions for binocular rivalry and rivalry memory
    Hugh R Wilson
    Centre for Vision Research, York University, Toronto, Ont, Canada
    Vision Res 47:2741-50. 2007
    ..Finally, addition of brief, recurrent synaptic facilitation to the model generates properties of rivalry memory...
  6. ncbi request reprint Learning alters local face space geometry
    Hugh R Wilson
    Department of Biology and Centre for Vision Research, York University, Toronto, Ont, Canada M3J 1P3
    Vision Res 46:4143-51. 2006
    ..Thus, face learning selectively alters or distorts face space in the vicinity of learned faces. This alteration may be due to an improvement in the signal/noise ratio as a result of face learning...
  7. ncbi request reprint Symmetry perception: a novel approach for biological shapes
    Hugh R Wilson
    Centre for Vision Research, 103 Farquharson, York University, Toronto, Ontario, Canada
    Vision Res 42:589-97. 2002
    ..Human V4 is hypothesized to be the site for symmetry discrimination of RF patterns but not of random dot patterns...
  8. ncbi request reprint Dynamics of travelling waves in visual perception
    H R Wilson
    Biology and Centre for Vision Research, York University, 4700 Keele Street, Toronto, Ontario M3J 1P3, Canada
    Nature 412:907-10. 2001
    ..Dominance waves provide a new tool for investigating fundamental cortical dynamics...
  9. ncbi request reprint An inverse oblique effect in human vision
    H R Wilson
    Centre for Vision Research, York University, 103 Farquharson, 4700 Keele Street, Toronto, Ont, Canada M3J 1P3
    Vision Res 41:1749-53. 2001
    ..The results can be explained quantitatively by a model for complex cells in which the final filtering stage in a filter-rectify-filter sequence is of significantly larger area for oblique orientations...
  10. doi request reprint Binocular rivalry: neurons unwire when they can't simultaneously fire
    Hugh R Wilson
    Centre for Vision Research, York University, Toronto, Ontario, Canada
    Curr Biol 20:R715-7. 2010
    ..New evidence suggests that this results from synaptic weakening or decoupling of neurons that are prevented from firing together...
  11. doi request reprint Preservation of shape discrimination in aging
    Claudine Habak
    Centre for Vision Research, York University, Toronto, ON, Canada
    J Vis 9:18.1-8. 2009
    ..Findings suggest that the effect of age on shapes defined by texture arises from lower stages of visual processing, and that the representation of shape combinations is spared because of its robust nature...
  12. doi request reprint Stimulus specificity in spatially-extended interocular suppression
    David F Nichols
    Centre for Vision Research, York University, Toronto, Ont, Canada M3J 1P3
    Vision Res 49:2110-20. 2009
    ..All of the results are consistent with selectively suppressing stimulus information that would interfere with stereoscopic matching to aid the binocular fusion of disparate retinal images...
  13. doi request reprint Binocular rivalry in migraine
    F Wilkinson
    Centre for Vision Research, York University, Toronto, ON, Canada
    Cephalalgia 28:1327-38. 2008
    ..Optical or neural precortical differences in the eyes' input strengths paired with enhanced recurrent cortical excitation can explain these findings...
  14. ncbi request reprint Heterogeneous structure in face-selective human occipito-temporal cortex
    Lisa R Betts
    York University, Toronto, Ontario, Canada
    J Cogn Neurosci 22:2276-88. 2010
    ....
  15. ncbi request reprint Evaluating shape after-effects with radial frequency patterns
    Nicole D Anderson
    Centre for Vision Research, York University, 4700 Keele Street, Toronto, Ont, Canada M3J 1P3
    Vision Res 47:298-308. 2007
    ..Together, these results suggest that shape-specific after-effects reflect gain control processes at various stages of processing along the ventral pathway...
  16. ncbi request reprint Dynamics of shape interaction in human vision
    Claudine Habak
    Centre for Vision Research, York University, 4700 Keele St, Toronto, Ont, Canada M3J 1P3
    Vision Res 46:4305-20. 2006
    ....
  17. ncbi request reprint Aging disrupts the neural transformations that link facial identity across views
    Claudine Habak
    Centre for Vision Research, York University, 4700 Keele Street, CSEB 0009, Toronto, Ont, Canada M3J 1P3
    Vision Res 48:9-15. 2008
    ....
  18. doi request reprint Effect of transient versus sustained activation on interocular suppression
    David F Nichols
    Centre for Vision Research, 0009 Computer Science and Engineering Bldg, 4700 Keele St, York University, Toronto, Ont, Canada
    Vision Res 49:102-14. 2009
    ..Therefore, it is likely that perceptual dominance in both binocular rivalry and flash suppression is based on the same mechanism of interocular suppression...
  19. doi request reprint Face recognition: Are viewpoint and identity processed after face detection?
    Charles C F Or
    Centre for Vision Research, York University, Toronto, Ontario, Canada M3J 1P3
    Vision Res 50:1581-9. 2010
    ..Thus, additional processing is essential for viewpoint and identity extraction as opposed to face detection...
  20. ncbi request reprint Interaction between binocular rivalry and depth in plaid patterns
    Athena Buckthought
    Centre for Vision Research, York University, 4700 Keele Street, Toronto, Ont, Canada M3J 1P3
    Vision Res 47:2543-56. 2007
    ..These results place constraints on models of stereopsis and rivalry, indicating that depth and rivalry can coexist in different spatial frequency and orientation bands but that each interferes with the other in the same band...
  21. ncbi request reprint A biologically plausible model of human radial frequency perception
    Frédéric J A M Poirier
    Centre for Vision Research, Neurodynamics and Vision Lab, York University, Computer Sciences and Engineering Building, Room B0002E, 4700 Keele Street, Toronto, Ont, Canada M3J 1P3
    Vision Res 46:2443-55. 2006
    ..Moreover, the model also shows size invariance of detection performance due to scaling of the curvature mechanisms. The model is then used to make novel predictions...
  22. ncbi request reprint Size-invariant but viewpoint-dependent representation of faces
    Yunjo Lee
    Centre for Vision Research, York University, Toronto, Ont, Canada
    Vision Res 46:1901-10. 2006
    ..7 degrees side views together and 13.3 degrees and 20 degrees side views together. This suggests categorical perception of face view. The present study concludes that face view and size are processed by parallel mechanisms...
  23. ncbi request reprint Curvature population coding for complex shapes in human vision
    Claudine Habak
    Centre for Vision Research, York University, 4700 Keele St, CSEB 0009, Toronto, Ont, Canada M3J 1P3
    Vision Res 44:2815-23. 2004
    ..The paradigm we introduce provides a new tool for evaluating the representation of complex percepts...
  24. ncbi request reprint The nature of synthetic face adaptation
    Nicole D Anderson
    Centre for Vision Research, York University, 4700 Keele Street, Toronto, Ont, Canada M3J 1P3
    Vision Res 45:1815-28. 2005
    ..Together, these results suggest that face adaptation reflects activity from mechanisms common to various processing stages along the visual pathway...
  25. ncbi request reprint The influence of motion-defined form on the perception of spatially-defined form
    Stéphane J M Rainville
    Center for Vision Research, York University, 4700 Keele Street, North York, Ont, Canada M1J 1P3
    Vision Res 44:1065-77. 2004
    ....
  26. ncbi request reprint Global shape coding for motion-defined radial-frequency contours
    Stéphane J M Rainville
    Center for Visual Neuroscience, Department of Psychology, North Dakota State University, Fargo, ND 58105 5075, USA
    Vision Res 45:3189-201. 2005
    ..These results are integrated with data on perceptual interactions between motion RFs and spatial-RFs and are discussed in terms of cue-specific and cue-invariant representations of object shape in human vision...
  27. ncbi request reprint Detecting shape deformation of moving patterns
    G Loffler
    Centre for Vision Research, 103 Farquharson Bldg, York University, 4700 Keele St, Ont, M3J 1P3, Toronto, Canada
    Vision Res 41:991-1006. 2001
    ..This indicates that detectors tuned to radial and circular motion are involved in the computation of shape deformation...
  28. ncbi request reprint An fMRI study of the selective activation of human extrastriate form vision areas by radial and concentric gratings
    F Wilkinson
    Centre for Vision Research, York University, 4700 Keele Street, ON M3J 1P3, Toronto, Canada
    Curr Biol 10:1455-8. 2000
    ..These findings support recent psychophysical [2,3] and physiological [4,5] data indicating that analysis of concentric and radial structure represents an important aspect of processing at intermediate levels of form vision...
  29. ncbi request reprint Synthetic faces, face cubes, and the geometry of face space
    Hugh R Wilson
    Centre for Vision Research, York University, Toronto, Canada
    Vision Res 42:2909-23. 2002
    ..Synthetic faces and face cubes thus provide a useful new quantitative approach to the study of face perception and face space...
  30. ncbi request reprint Quantifying facial expression recognition across viewing conditions
    Deborah Goren
    Centre for Vision Research, Department of Biology, York University, 4700 Keele Street, Toronto, Ont, Canada M3J 1P3
    Vision Res 46:1253-62. 2006
    ..These findings further support the idea that these emotions are processed separately from each other...
  31. ncbi request reprint Three cases of developmental prosopagnosia from one family: detailed neuropsychological and psychophysical investigation of face processing
    Yunjo Lee
    Centre for Vision Research, York University, Toronto, ON, Canada
    Cortex 46:949-64. 2010
    ..FA performed poorly on face learning and recognition relative to the age-appropriate controls. These cases provide evidence for familial transmission of high-level visual recognition deficits with normal intermediate-level form vision...
  32. ncbi request reprint Sensitivity to global form in glass patterns after early visual deprivation in humans
    Terri L Lewis
    Department of Ophthalmology, The Hospital for Sick Children, Toronto, Canada M5G 1X8
    Vision Res 42:939-48. 2002
    ....
  33. ncbi request reprint Further evidence for global orientation processing in circular Glass patterns
    Hugh R Wilson
    Vision Res 43:563-4; author reply 565-6. 2003
  34. ncbi request reprint Local and global contributions to shape discrimination
    Gunter Loffler
    Department of Vision Sciences, Glasgow Caledonian University, Cowcaddens Road, Glasgow G4 0BA, Scotland, UK
    Vision Res 43:519-30. 2003
    ..We conclude that RF patterns in the global processing range are analysed by detecting the points of maximum curvature and that, in this range, the visual system can only reliably process up to about 5 local curvature extrema...
  35. ncbi request reprint Global shape discrimination at reduced contrast in enucleated observers
    Jennifer K E Steeves
    Department of Psychology, The University of Western Ontario, London, Ont, Canada N6A 5C2
    Vision Res 44:943-9. 2004
    ..The previously reported enhanced sensitivity to luminance-defined form in early enucleated observers also occurs for low-contrast global shape discrimination...
  36. ncbi request reprint A window on the normal development of sensitivity to global form in Glass patterns
    Terri L Lewis
    Department of Psychology, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4K1, Canada
    Perception 33:409-18. 2004
    ..During middle childhood, the mechanisms mediating sensitivity to concentric structure develop at the same rate as those mediating sensitivity to parallel structure...
  37. ncbi request reprint Object perception and masking: contributions of sides and convexities
    Frédéric J A M Poirier
    Departement de Psychologie, Universite de Montreal, 90, avenue Vincent d Indy, Montreal, Que, Canada
    Vision Res 47:3001-11. 2007
    ..This supports a theory where convexities constitute a prime source of information for shape processing, and sides do also contribute but to a smaller extent...
  38. ncbi request reprint Configural masking of faces: evidence for high-level interactions in face perception
    Gunter Loffler
    Department of Vision Sciences, Glasgow Caledonian University, Cowcaddens Road, Glasgow G4 0BA, Scotland, UK
    Vision Res 45:2287-97. 2005
    ..The duration over which a face mask can impair face discrimination (130 ms) is markedly longer than previously assumed and is sufficient for iterative and feedback computations to be part of face processing...
  39. ncbi request reprint fMRI evidence for the neural representation of faces
    Gunter Loffler
    Department of Vision Sciences, Glasgow Caledonian University, Cowcaddens Road, Glasgow G4 0BA, Scotland, UK
    Nat Neurosci 8:1386-90. 2005
    ..Furthermore, adaptation of the fMRI signal showed that the same neural population responds to faces falling along single identity axes within this space...
  40. ncbi request reprint Is there an age-related positivity effect in visual attention? A comparison of two methodologies
    Derek M Isaacowitz
    Department of Psychology, Brandeis University, Waltham, MA, USA
    Emotion 6:511-6. 2006
    ..Dot-probe results were less robust, but in the same direction. Methodological and theoretical implications for the study of socioemotional aging are discussed...
  41. pmc Recognition memory for realistic synthetic faces
    Yuko Yotsumoto
    Brandeis University, Waltham, Massachusetts, USA
    Mem Cognit 35:1233-44. 2007
    ..Experiment 2 confirmed the importance of within-list homogeneity directly, without mediation of a model. We discuss the affinities and differences between visual memory for synthetic faces and memory for simpler stimuli...
  42. ncbi request reprint Selective preference in visual fixation away from negative images in old age? An eye-tracking study
    Derek M Isaacowitz
    Department of Psychology, Brandeis University, MS 062, Waltham, MA 02454, USA
    Psychol Aging 21:40-8. 2006
    ..The age groups were not different in overall cognitive functioning, suggesting that these attentional differences are specific and motivated rather than due to general cognitive change with age...
  43. ncbi request reprint Age-related positivity enhancement is not universal: older Chinese look away from positive stimuli
    Helene H Fung
    Department of Psychology, Chinese University of Hong Kong, New Territories, Hong Kong
    Psychol Aging 23:440-6. 2008
    ..In contrast to prior Western findings, older but not younger Chinese looked away from happy facial expressions, suggesting that they do not show attentional preferences toward positive stimuli...

Research Grants4

  1. Mechanisms in Face Perception: Psychophysics & fMRI
    Hugh Wilson; Fiscal Year: 2003
    ..These studies will provide new insights into the global processes underlying face perception and the ways in which they may be clinically compromised ..
  2. Mechanisms in Face Perception: Psychophysics & fMRI
    Hugh Wilson; Fiscal Year: 2006
    ..These studies will provide new insights into the global processes underlying face perception and the ways in which they may be clinically compromised ..