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Proceedings Paper

Vibrotactile target saliency
Author(s): Alexander Toet; Eric L. Groen; Marjolaine Oosterbeek; Ignace T. C. Hooge
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Paper Abstract

We tested the saliency of a single vibrotractile target (T) among 2 to 7 nontargets (N), presented by 8 tactors that were equally distributed over a horizontal band around the torso. Targets and nontargets had different pulse duration, but the same activation period and no onset asynchrony. T-N similarity was varied by changing the difference between T and N pulse duration. For target present trials the response times increased with the number of stimulus items for all conditions tested, suggesting a serial discrimination process. For target absent trials the response times were independent of the number of stimulus items, suggesting a parallel discrimination process. We found no effect of T-N similarity and no search asymmetry. The present results suggest that tactile target search is not comparable to visual search.

Paper Details

Date Published: 17 April 2008
PDF: 10 pages
Proc. SPIE 6956, Display Technologies and Applications for Defense, Security, and Avionics II, 695605 (17 April 2008); doi: 10.1117/12.776121
Show Author Affiliations
Alexander Toet, TNO Human Factors (Netherlands)
Eric L. Groen, TNO Human Factors (Netherlands)
Marjolaine Oosterbeek, TNO Human Factors (Netherlands)
Ignace T. C. Hooge, Utrecht Univ. (Netherlands)

Published in SPIE Proceedings Vol. 6956:
Display Technologies and Applications for Defense, Security, and Avionics II
John Tudor Thomas; Andrew Malloy, Editor(s)

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