Chapter

Haptics: Generating and Perceiving Tangible Sensations

Volume 6192 of the series Lecture Notes in Computer Science pp 347-352

A Comparison of the Haptic and Visual Horizontal-Vertical Illusion

  • Jacqui HowellAffiliated withLancaster UniversityMonash University
  • , Mark SymmonsAffiliated withLancaster UniversityMonash University
  • , Dianne WuilleminAffiliated withLancaster UniversityMonash University

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Abstract

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.

Keywords

Horizontal-vertical illusion vision haptics