Haptic pop-out of movable stimuli
Identifieur interne : 002757 ( Main/Exploration ); précédent : 002756; suivant : 002758Haptic pop-out of movable stimuli
Auteurs : Vonne Van Polanen [Pays-Bas] ; Wouter M. Bergmann Tiest [Pays-Bas] ; Astrid M. L. Kappers [Pays-Bas]Source :
- Attention, perception & psychophysics [ 1943-3921 ] ; 2012.
Descripteurs français
- Pascal (Inist)
- Wicri :
- topic : Homme.
English descriptors
Abstract
When, in visual and haptic search, a target is easily found among distractors, this is called a pop-out effect. The target feature is then believed to be salient, and the search is performed in a parallel way. We investigated this effect with movable stimuli in a haptic search task. The task was to find a movable ball among anchored distractors or the other way round. Results show that reaction times were independent of the number of distractors if the movable ball was the target but increased with the number of items if the anchored ball was the target. Analysis of hand movements revealed a parallel search strategy, shorter movement paths, a higher average movement speed, and a narrower direction distribution with the movable target, as compared with a more detailed search for an anchored target. Taken together, these results show that a movable object pops out between anchored objects and this indicates that movability is a salient object feature. Vibratory signals resulting from the movable ball were found to be a reasonable explanation regarding the sensation responsible for the pop-out of movability.
Affiliations:
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Bergmann Tiest</name><affiliation wicri:level="4"><inist:fA14 i1="01"><s1>Helmholtz Institute, Utrecht University, Padualaan 8</s1><s2>3584 CH Utrecht</s2><s3>NLD</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>Pays-Bas</country><wicri:noRegion>3584 CH Utrecht</wicri:noRegion><orgName type="university">Université d'Utrecht</orgName><placeName><settlement type="city">Utrecht</settlement><region nuts="2">Utrecht (province)</region></placeName></affiliation></author><author><name sortKey="Kappers, Astrid M L" sort="Kappers, Astrid M L" uniqKey="Kappers A" first="Astrid M. L." last="Kappers">Astrid M. L. Kappers</name><affiliation wicri:level="4"><inist:fA14 i1="01"><s1>Helmholtz Institute, Utrecht University, Padualaan 8</s1><s2>3584 CH Utrecht</s2><s3>NLD</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>Pays-Bas</country><wicri:noRegion>3584 CH Utrecht</wicri:noRegion><orgName type="university">Université d'Utrecht</orgName><placeName><settlement type="city">Utrecht</settlement><region nuts="2">Utrecht (province)</region></placeName></affiliation></author></analytic><series><title level="j" type="main">Attention, perception & psychophysics</title><title level="j" type="abbreviated">Atten. percept. psychophys. </title><idno type="ISSN">1943-3921</idno><imprint><date when="2012">2012</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Attention, perception & psychophysics</title><title level="j" type="abbreviated">Atten. percept. psychophys. </title><idno type="ISSN">1943-3921</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Experimental study</term><term>Exploratory behavior</term><term>Human</term><term>Stimulus movement</term><term>Tactile sensitivity</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Sensibilité tactile</term><term>Mouvement stimulus</term><term>Etude expérimentale</term><term>Comportement explorateur</term><term>Homme</term><term>Recherche haptique</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Homme</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">When, in visual and haptic search, a target is easily found among distractors, this is called a pop-out effect. The target feature is then believed to be salient, and the search is performed in a parallel way. We investigated this effect with movable stimuli in a haptic search task. The task was to find a movable ball among anchored distractors or the other way round. Results show that reaction times were independent of the number of distractors if the movable ball was the target but increased with the number of items if the anchored ball was the target. Analysis of hand movements revealed a parallel search strategy, shorter movement paths, a higher average movement speed, and a narrower direction distribution with the movable target, as compared with a more detailed search for an anchored target. Taken together, these results show that a movable object pops out between anchored objects and this indicates that movability is a salient object feature. Vibratory signals resulting from the movable ball were found to be a reasonable explanation regarding the sensation responsible for the pop-out of movability.</div></front></TEI><affiliations><list><country><li>Pays-Bas</li></country><region><li>Utrecht (province)</li></region><settlement><li>Utrecht</li></settlement><orgName><li>Université d'Utrecht</li></orgName></list><tree><country name="Pays-Bas"><region name="Utrecht (province)"><name sortKey="Polanen, Vonne Van" sort="Polanen, Vonne Van" uniqKey="Polanen V" first="Vonne Van" last="Polanen">Vonne Van Polanen</name></region><name sortKey="Bergmann Tiest, Wouter M" sort="Bergmann Tiest, Wouter M" uniqKey="Bergmann Tiest W" first="Wouter M." last="Bergmann Tiest">Wouter M. Bergmann Tiest</name><name sortKey="Kappers, Astrid M L" sort="Kappers, Astrid M L" uniqKey="Kappers A" first="Astrid M. L." last="Kappers">Astrid M. L. Kappers</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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