This user has been on Wikipedia for 19 years, 7 months and 22 days.
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I am Robert P. O'Shea, a researcher, author, and compulsive tinkerer with other people's prose. I work at Leipzig University, Germany. Robert P. O'Shea is my real name.

I have made more than 5,000 edits to more than 1,300 pages in all parts of Wikipedia. I have created, or made major revisions to, 90 pages, of which 82 still exist (see below). I have also made substantial or significant changes to 50 pages (also see below).

Initial entries and major revisions I have authored include:

  1. 2AFC
  2. Adelbert Ames, Jr.
  3. Aerial perspective
  4. Anneros Meischner-Metge [de]
  5. Arthur König
  6. Australasian Experimental Psychology Society (now called Australasian Society for Experimental Psychology)
  7. Autokinetic effect
  8. Binocular rivalry
  9. Binocular vision
  10. Celeste McCollough
  11. Convergence micropsia
  12. Cyanopsia
  13. David Rubinoff, and Dave Rubinoff, Rubinoff, Rubinoff and his Orchestra, and Rubinoff Orchestra
  14. Eloise (Barry Ryan song) (now called Eloise (Paul Ryan song))
  15. Emission theory (vision)
  16. Endaural phenomena
  17. Entopic
  18. Equilateral Triathlon
  19. Erich Schröger
  20. Ernst Leitz II
  21. Farm tools (disambiguation)
  22. Fergus W. Campbell
  23. Ganglion cell
  24. Giant retinal ganglion cells
  25. Glenn A. Fry
  26. Grating
  27. Gustav Adolf Wohlgemuth
  28. H. Carl Haywood
  29. Half-life of knowledge
  30. Haploscope
  31. Harvey J. Howard
  32. Howler (examination)
  33. Ian P. Howard
  34. Ibn Sahl
  35. Ignaz Paul Vital Troxler
  36. Illusions of self-motion
  37. Induced movement
  38. Instrument myopia (still under construction)
  39. Irradiation illusion
  40. Jeremy Hinton
  41. Johannes Theodor Müller, along with redirect and entry in disambiguation page for Johannes Müller
  42. John Graham Kerr
  43. Kenneth N. Ogle
  44. Kurt Koffka Medal, along with four redirects
  45. Law of specific nerve energies (major revision)
  46. Lilac chaser
  47. Loess curve
  48. Lowess
  49. Loxene
  50. Mary O'Neill (disambiguation)
  51. McCollough effect
  52. Meridian (perimetry, visual field)
  53. Michael Bach (vision scientist)
  54. Michael von Grünau
  55. Monocular rivalry
  56. Motion aftereffect
  57. Motion induced blindness
  58. Mylestom, New South Wales
  59. Neglect
  60. Neurotree (also Academic family tree as a redirect)
  61. Ogle
  62. Pacman (original article disappeared when it was moved to a redirect)
  63. Pattern glare (stub)
  64. Phosphene
  65. Piece of My Heart (disambiguation)
  66. Pinocchio illusion
  67. Post-micturition convulsion syndrome (now overwritten by a later article)
  68. Progressive lenses
  69. Purkinje images
  70. Receptive field
  71. Refraction error
  72. Sea legs
  73. Self-motion
  74. Semir Zeki
  75. StatView
  76. Stereopsis
  77. Stomach stapling (now called Vertical banded gastroplasty surgery)
  78. Ternus illusion
  79. Tetris effect
  80. Troxler (Disambiguation)
  81. Troxler's fading
  82. Two-body problem (disambiguation) (replaced by list of articles at Two-body problem)
  83. Urte
  84. Verdelle Smith (Disambiguation)
  85. Verdell Smith (boxer) (now Verdell Smith)
  86. Verdelle Smith (Singer)
  87. Wagon-wheel effect
  88. Wike's law of low odd primes
  89. WriteNow
  90. Zograscope (also diagonal mirror, optical pillar machine, and optical diagonal machine as redirects)

Substantial revisions I have made include:

  1. Ames Room
  2. Anticrepuscular rays
  3. Atmospheric optics (the introductory part)
  4. Autostereogram
  5. Barry Ryan (singer)
  6. Breaststroke
  7. Far point
  8. Gerald Westheimer
  9. Horopter
  10. Hyperalgesia
  11. Michael Corballis
  12. Philosophische Studien with redirect for Psychologische Studien
  13. Psychophysics (the introductory part)
  14. Richie Poulton (Early life, University education and career, and Personal life)
  15. Schultüte (also Zuckertüte as a redirect)
  16. Transcranial Doppler
  17. University of Queensland (Foundation of the university)
  18. Valentino Braitenberg
  19. Verdell Smith (boxer)
  20. Watercolor illusion
  21. Wu Lien-teh (Personal life)

Significant revisions I have made include:

  1. AMP Limited (History section, and AMP Banking as a redirect)
  2. Angus Young (mainly Early life)
  3. Anne Treisman
  4. Aurora
  5. Bad Dürrenberg (History section)
  6. Café wall illusion (contribution of Münsterberg, 1894, 1897)
  7. Cape Raoul
  8. Carl Bergmann (anatomist)
  9. Cathy Freeman
  10. Colin Blakemore
  11. Dynamic assessment
  12. Empiricism (the early history)
  13. G. Stanley Hall
  14. Gustav Fechner
  15. Jack Pettigrew
  16. Pick-up sticks
  17. Pioneer River (mainly Pioneer Valley section)
  18. Random dot stereogram (mainly Illustrative example)
  19. Retinal ganglion cell
  20. Rhyl Hinwood
  21. Sonic Healthcare (mainly History section)
  22. Spicks and Specks (TV series)
  23. Split-brain (to information about JW)
  24. Sprite (lightning)
  25. The Kangaroo Chronicles (the Movie section)
  26. Thunder
  27. Shepard tone (the Examples)
  28. Wilhelm Wundt
  29. William Forgan Smith (with redirect from Forgan-Smith)