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Cognitive Evaluation of Haptic and Audio Feedback in Short Range Navigation Tasks

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Computers Helping People with Special Needs (ICCHP 2014)

Part of the book series: Lecture Notes in Computer Science ((LNISA,volume 8548))

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Abstract

Assistive navigation systems for the blind commonly use speech to convey directions to their users. However, this is problematic for short range navigation systems that need to provide fine but diligent guidance in order to avoid obstacles. For this task, we have compared haptic and audio feedback systems under the NASA-TLX protocol to analyze the additional cognitive load that they place on users. Both systems are able to guide the users through a test obstacle course. However, for white cane users, auditory feedback results in a 22 times higher cognitive load than haptic feedback. This discrepancy in cognitive load was not found on blindfolded users, thus we argue against evaluating navigation systems solely with blindfolded users.

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Author information

Authors and Affiliations

  1. cv:hci lab, Karlsruhe Institute of Technology Institute for Anthropomatics and Robotics, Karlsruhe, Germany

    Manuel Martinez, Boris Schauerte, Daniel Koester & Rainer Stiefelhagen

  2. Study Center for the Visually Impaired Students, Karlsruhe, Germany

    Angela Constantinescu & Rainer Stiefelhagen

Authors
  1. Manuel Martinez
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  2. Angela Constantinescu
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  3. Boris Schauerte
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  4. Daniel Koester
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  5. Rainer Stiefelhagen
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Editor information

Editors and Affiliations

  1. Institute "Integriert Studieren", Johannes Kepler University, Altenbergerstr. 69, 4040, Linz, Austria

    Klaus Miesenberger

  2. Ryerson University, 350 Victoria Street, M5B 2K3, Toronto, ON, Canada

    Deborah Fels

  3. THIM/EA 4004 CHArt, Université Paris 8 Vincennes-Saint Denis, 2 rue de la liberté, 93526, Saint-Denis Cedex, France

    Dominique Archambault

  4. Teiresias Centre, Botanická 68A, Masaryk University, 602 00, Brno, Czech Republic

    Petr Peňáz

  5. Institute "Integriert Studieren", Vienna University of Technology, Favoritenstraße 11/029, 1050, Vienna, Austria

    Wolfgang Zagler

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© 2014 Springer International Publishing Switzerland

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Martinez, M., Constantinescu, A., Schauerte, B., Koester, D., Stiefelhagen, R. (2014). Cognitive Evaluation of Haptic and Audio Feedback in Short Range Navigation Tasks. In: Miesenberger, K., Fels, D., Archambault, D., Peňáz, P., Zagler, W. (eds) Computers Helping People with Special Needs. ICCHP 2014. Lecture Notes in Computer Science, vol 8548. Springer, Cham. https://doi.org/10.1007/978-3-319-08599-9_20

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  • DOI: https://doi.org/10.1007/978-3-319-08599-9_20

  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-08598-2

  • Online ISBN: 978-3-319-08599-9

  • eBook Packages: Computer ScienceComputer Science (R0)

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