Vibrotactile target saliency | Zendy

Alexander Toet | Zendy; Eric L. Groen | Zendy; Marjolaine Oosterbeek | Zendy; Ignace T. C. Hooge | Zendy

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Vibrotactile target saliency

Author(s) -

Alexander Toet,

Eric L. Groen,

Marjolaine Oosterbeek,

Ignace T. C. Hooge

Publication year - 2008

Publication title -

proceedings of spie, the international society for optical engineering/proceedings of spie

Language(s) - English

Resource type - Conference proceedings

SCImago Journal Rank - 0.192

H-Index - 176

eISSN - 1996-756X

pISSN - 0277-786X

DOI - 10.1117/12.776121

Subject(s) - torso , stimulus (psychology) , stimulus onset asynchrony , audiology , visual search , artificial intelligence , computer science , psychology , pattern recognition (psychology) , mathematics , cognitive psychology , neuroscience , perception , medicine , anatomy

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.

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