HapticV1, Main, Merge, bibRecord, 002B92

Haptic pop-out of movable stimuli

Identifieur interne : 002B92 ( Main/Merge ); précédent : 002B91; suivant : 002B93

Haptic 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 ] ; 2011.

RBID : PMC:3264877

English descriptors

KwdEn :
- Adolescent, Attention, Discrimination (Psychology), Exploratory Behavior, Female, Humans, Kinesthesis, Male, Orientation, Psychophysics, Reaction Time, Stereognosis, Young Adult.
MESH :
- Adolescent, Attention, Discrimination (Psychology), Exploratory Behavior, Female, Humans, Kinesthesis, Male, Orientation, Psychophysics, Reaction Time, Stereognosis, Young Adult.

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.

Url:

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3264877

DOI: 10.3758/s13414-011-0216-5
PubMed: 22006526
PubMed Central: 3264877

Links to Exploration step

PMC:3264877

Le document en format XML

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<front><div type="abstract" xml:lang="en"><p>When, in visual and haptic search, a target is easily found among distractors, this is called a <italic>pop-out effect</italic>
. 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.</p>
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Serveur d'exploration sur les dispositifs haptiques

Haptic pop-out of movable stimuli

Haptic pop-out of movable stimuli

Source :

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Links to Exploration step

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri

Pour générer des pages wiki

	Serveur d'exploration sur les dispositifs haptiques
	Attention, ce site est en cours de développement ! Attention, site généré par des moyens informatiques à partir de corpus bruts. Les informations ne sont donc pas validées.