Abstract

We can haptically extract thermal properties of different material, but we can also sense object temperature. It has been shown that thermal properties of materials are not very salient features. In this study, we investigate saliency of actual temperature differences. To this end we let subjects grasp varying numbers of spheres in the hand. These spheres were warmer (38°C) than the hand temperature, but in half of the trials there was one sphere colder (22°C) than the hand temperature. Subjects had to indicate whether the cold sphere was present and response times were measured as a function of the number of spheres. This yielded a target present slope as small as 32 ms/item. This is comparable to slopes found earlier for search for a tetrahedron among spheres and indicates that there is pop-out effect for a cold sphere among warm spheres.

Keywords

Haptic search Temperature perception Psychophysics 

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References

  1. 1.
    Lederman, S.J., Klatzky, R.L.: Relative availability of surface and object properties during early haptic processing. Journal of Experimental Psychology: Human Perception and Performance 23, 1680–1707 (1997)Google Scholar
  2. 2.
    Plaisier, M.A., Bergmann Tiest, W.M., Kappers, A.M.L.: Haptic pop-out in a hand sweep. Acta Psychologica 128, 368–377 (2008)CrossRefGoogle Scholar
  3. 3.
    Plaisier, M.A., Bergmann Tiest, W.M., Kappers, A.M.L.: Salient features in three-dimensional haptic shape perception. Attention, Perception & Psychophysics 71(2), 421–430 (2009)CrossRefGoogle Scholar
  4. 4.
    Ho, H.N., Jones, L.A.: Contribution of thermal cues to material discrimination and localization. Perception & Psychophysics 68, 118–128 (2006)CrossRefGoogle Scholar
  5. 5.
    Treisman, A., Gelade, G.: A feature-integration theory of attention. Cognitive Psychology 12, 97–136 (1980)CrossRefGoogle Scholar
  6. 6.
    Wolfe, J.M., Cave, K.R., Franzel, S.L.: Guided search: an alternative to the feature integration model for visual search. Journal of Experimental Psychology: Human Perception and Performance 15, 419–433 (1989)Google Scholar
  7. 7.
    Jones, L.A., Ho, H.N.: Warm or cool, large or small? The challenge of thermal displays. IEEE Transactions on Haptics 1, 53–70 (2008)CrossRefGoogle Scholar
  8. 8.
    Coren, S.: The left-hander syndrome: The causes and consequences of left-handedness. Vintage Books, New York (1993)Google Scholar
  9. 9.
    Plaisier, M.A., Bergmann Tiest, W.M., Kappers, A.M.L.: Haptic search for spheres and cubes. In: Ferre, M. (ed.) EuroHaptics 2008. LNCS, vol. 5024, pp. 275–282. Springer, Heidelberg (2008)CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2010

Authors and Affiliations

  • Myrthe A. Plaisier
    • 1
    • 2
  • Astrid M. L. Kappers
    • 1
  1. 1.Helmholtz InstituteUtrecht UniversityThe Netherlands
  2. 2.Faculty of human movement scienceVU University AmsterdamThe Netherlands

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