A Comparison of the Haptic and Visual Horizontal-Vertical Illusion

  • Jacqui Howell
  • Mark Symmons
  • Dianne Wuillemin
Part of the Lecture Notes in Computer Science book series (LNCS, volume 6192)


Participants attempted to create squares of four different sizes in two orientations in one of three modality conditions - physically adjusting a tangible template while blindfolded (haptic condition), directing the experimenter to adjust the template (vision condition), or adjusting the template themselves without the blindfold (mixed-mode condition). The side of square was robustly overestimated, resulting in a rectangle elongated in the horizontal direction - evidence for the horizontal-vertical illusion. There was no difference in the illusion’s strength as a function of modality conditions or orientation.


Horizontal-vertical illusion vision haptics 


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Copyright information

© Springer-Verlag Berlin Heidelberg 2010

Authors and Affiliations

  • Jacqui Howell
    • 1
  • Mark Symmons
    • 1
  • Dianne Wuillemin
    • 1
  1. 1.Monash UniversityChurchillAustralia

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