Centralizing Bias and the Vibrotactile Funneling Illusion on the Forehead

  • Hamideh Kerdegari
  • Yeongmi Kim
  • Tom Stafford
  • Tony J. Prescott
Conference paper

DOI: 10.1007/978-3-662-44196-1_8

Part of the Lecture Notes in Computer Science book series (LNCS, volume 8619)
Cite this paper as:
Kerdegari H., Kim Y., Stafford T., Prescott T.J. (2014) Centralizing Bias and the Vibrotactile Funneling Illusion on the Forehead. In: Auvray M., Duriez C. (eds) Haptics: Neuroscience, Devices, Modeling, and Applications. EuroHaptics 2014. Lecture Notes in Computer Science, vol 8619. Springer, Berlin, Heidelberg

Abstract

This paper provides a novel psychophysical investigation of head-mounted vibrotactile interfaces for sensory augmentation. A 1-by-7 headband vibrotactile display was used to provide stimuli on each participant’s forehead. Experiment I investigated the ability to identify the location of a vibrotactile stimulus presented to a single tactor in the display; results indicated that localization error is uniform but biased towards the forehead midline. In Experiment II, two tactors were activated simultaneously, and participants were asked to indicate whether they experienced one or two stimulus locations. Participants reported the funneling illusion—experiencing one stimulus when two tactors were activated—mainly for the shortest inter-tactor difference. We discuss the significance of these results for the design of head-mounted vibrotactile displays and in relation to research on localization and funneling on different body surfaces.

Keywords

Head-mounted vibrotactile display Localization Funneling illusion 

Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  • Hamideh Kerdegari
    • 1
  • Yeongmi Kim
    • 2
  • Tom Stafford
    • 1
  • Tony J. Prescott
    • 1
  1. 1.Sheffield Center for Robotics (SCentRo)University of SheffieldSheffieldUK
  2. 2.Interactive Graphics and Simulation LabUniversity of InnsbruckInnsbruckAustria

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