Prevalence Effect in Haptic Search

In visual search tasks, the ratio of target-present to target-absent trials has important effects on miss rates. In this study, we examined whether the target prevalence effect occurs in a haptic search task by using artificial tactile maps. The results indicated that target prevalence has effects o...

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Bibliographic Details
Published ini-Perception (London) Vol. 3; no. 8; pp. 495 - 498
Main Authors Ishibashi, Kazuya, Watanabe, Ken, Takaoka, Yutaka, Watanabe, Tetsuya, Kita, Shinichi
Format Journal Article
LanguageEnglish
Published London, England SAGE Publications 01.01.2012
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SAGE Publishing
Subjects
Short and Sweet
search termination time
criterion
sensitivity
prevalence effect
haptic search
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Summary:In visual search tasks, the ratio of target-present to target-absent trials has important effects on miss rates. In this study, we examined whether the target prevalence effect occurs in a haptic search task by using artificial tactile maps. The results indicated that target prevalence has effects on miss rates, sensitivity, and criterion. Moreover, an increase in miss rates in the low-prevalence condition (10%) was strongly correlated with a decrease in search termination times (target-absent reaction times). These results suggest that the prevalence effect on haptic search is caused by a decrease in the search termination time and a shift in decision criterion and a decrease in sensitivity.
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ISSN:2041-6695
2041-6695
DOI:10.1068/i0509sas