Contact Force and Scanning Velocity during Active Roughness Perception
Identifieur interne : 001341 ( Main/Exploration ); précédent : 001340; suivant : 001342Contact Force and Scanning Velocity during Active Roughness Perception
Auteurs : Yoshihiro Tanaka [Japon] ; Wouter M. Bergmann Tiest [Pays-Bas] ; Astrid M. L. Kappers [Pays-Bas] ; Akihito Sano [Japon]Source :
- PLoS ONE [ 1932-6203 ] ; 2014.
English descriptors
- KwdEn :
- MESH :
Abstract
Haptic perception is bidirectionally related to exploratory movements, which means that exploration influences perception, but perception also influences exploration. We can optimize or change exploratory movements according to the perception and/or the task, consciously or unconsciously. This paper presents a psychophysical experiment on active roughness perception to investigate movement changes as the haptic task changes. Exerted normal force and scanning velocity are measured in different perceptual tasks (discrimination or identification) using rough and smooth stimuli. The results show that humans use a greater variation in contact force for the smooth stimuli than for the rough stimuli. Moreover, they use higher scanning velocities and shorter break times between stimuli in the discrimination task than in the identification task. Thus, in roughness perception humans spontaneously use different strategies that seem effective for the perceptual task and the stimuli. A control task, in which the participants just explore the stimuli without any perceptual objective, shows that humans use a smaller contact force and a lower scanning velocity for the rough stimuli than for the smooth stimuli. Possibly, these strategies are related to aversiveness while exploring stimuli.
Url:
DOI: 10.1371/journal.pone.0093363
PubMed: 24676036
PubMed Central: 3968175
Affiliations:
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Kappers</name><affiliation wicri:level="4"><nlm:aff id="aff2"><addr-line>Helmholtz Institute, Utrecht University, Utrecht, The Netherlands</addr-line></nlm:aff><country xml:lang="fr">Pays-Bas</country><wicri:regionArea>Helmholtz Institute, Utrecht University, Utrecht</wicri:regionArea><placeName><settlement type="city">Utrecht</settlement><region nuts="2" type="province">Utrecht (province)</region></placeName><orgName type="university">Université d'Utrecht</orgName></affiliation></author><author><name sortKey="Sano, Akihito" sort="Sano, Akihito" uniqKey="Sano A" first="Akihito" last="Sano">Akihito Sano</name><affiliation wicri:level="1"><nlm:aff id="aff1"><addr-line>Department of Engineering Physics, Electronics and Mechanics, Graduate School of Engineering, Nagoya Institute of Technology, Nagoya, Japan</addr-line></nlm:aff><country xml:lang="fr">Japon</country><wicri:regionArea>Department of Engineering Physics, Electronics and Mechanics, Graduate School of Engineering, Nagoya Institute of Technology, Nagoya</wicri:regionArea><wicri:noRegion>Nagoya</wicri:noRegion></affiliation></author></analytic><series><title level="j">PLoS ONE</title><idno type="eISSN">1932-6203</idno><imprint><date when="2014">2014</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Adult</term><term>Discrimination (Psychology)</term><term>Female</term><term>Humans</term><term>Male</term><term>Movement</term><term>Pattern Recognition, Physiological (physiology)</term><term>Psychophysics</term><term>Reaction Time (physiology)</term><term>Surface Properties</term><term>Touch (physiology)</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Pattern Recognition, Physiological</term><term>Reaction Time</term><term>Touch</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Adult</term><term>Discrimination (Psychology)</term><term>Female</term><term>Humans</term><term>Male</term><term>Movement</term><term>Psychophysics</term><term>Surface Properties</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><p>Haptic perception is bidirectionally related to exploratory movements, which means that exploration influences perception, but perception also influences exploration. We can optimize or change exploratory movements according to the perception and/or the task, consciously or unconsciously. This paper presents a psychophysical experiment on active roughness perception to investigate movement changes as the haptic task changes. Exerted normal force and scanning velocity are measured in different perceptual tasks (discrimination or identification) using rough and smooth stimuli. The results show that humans use a greater variation in contact force for the smooth stimuli than for the rough stimuli. Moreover, they use higher scanning velocities and shorter break times between stimuli in the discrimination task than in the identification task. Thus, in roughness perception humans spontaneously use different strategies that seem effective for the perceptual task and the stimuli. A control task, in which the participants just explore the stimuli without any perceptual objective, shows that humans use a smaller contact force and a lower scanning velocity for the rough stimuli than for the smooth stimuli. Possibly, these strategies are related to aversiveness while exploring stimuli.</p></div></front><back><div1 type="bibliography"><listBibl><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct><analytic><author><name sortKey="Gamzu, E" uniqKey="Gamzu E">E Gamzu</name></author><author><name sortKey="Ahissar, E" uniqKey="Ahissar E">E Ahissar</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Smith, Am" uniqKey="Smith A">AM Smith</name></author><author><name sortKey="Gosselin, G" uniqKey="Gosselin G">G Gosselin</name></author><author><name sortKey="Houde, B" uniqKey="Houde B">B Houde</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Kaim, L" uniqKey="Kaim L">L Kaim</name></author><author><name sortKey="Drewing, K" uniqKey="Drewing K">K Drewing</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Drewing, K" uniqKey="Drewing K">K Drewing</name></author><author><name sortKey="Lezkan, A" 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Bergmann Tiest</name></region><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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