Vibrotactile target saliency
conference paper
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.
Topics
TNO Identifier
22172
Article nr.
695605
Source title
Display Technologies and Applications for Defense, Security, and Avionics II, 18 March 2008 through 20 March 2008, Orlando, FL,
Editor(s)
Thomas, J.T.
Malloy, A.
Malloy, A.
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