Active haptic detection and discrimination of shape
Identifieur interne : 007980 ( Main/Merge ); précédent : 007979; suivant : 007981Active haptic detection and discrimination of shape
Auteurs : S. Louw [Pays-Bas] ; A. M. L. Kappers [Pays-Bas] ; J. J. Koenderink [Pays-Bas]Source :
- Perception & psychophysics [ 0031-5117 ] ; 2002.
Descripteurs français
- Pascal (Inist)
- Wicri :
- topic : Homme.
English descriptors
- KwdEn :
Abstract
In previous research, we have shown that detection thresholds for Gaussian shapes increase with a power of 1.3 of spatial width. In the present three experiments, we generalized this finding to more complex shapes and to discrimination tasks. In Experiment 1, we found that the slope of the psychometric function for detection (i.e., distinguishing curved from flat surfaces) was independent of surface shape. In Experiment 3, we found the same result for discrimination of two different curved shapes. In Experiment 2, we found that detection and discrimination functions had the same dependence on spatial width, except that discrimination thresholds were two to four times larger. Possible neural mechanisms underlying these results are discussed.
Links toward previous steps (curation, corpus...)
- to stream PascalFrancis, to step Corpus: 001220
- to stream PascalFrancis, to step Curation: 000291
- to stream PascalFrancis, to step Checkpoint: 001040
Links to Exploration step
Pascal:03-0026442Le document en format XML
<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en" level="a">Active haptic detection and discrimination of shape</title>
<author><name sortKey="Louw, S" sort="Louw, S" uniqKey="Louw S" first="S." last="Louw">S. Louw</name>
<affiliation wicri:level="4"><inist:fA14 i1="01"><s1>Utrecht University</s1>
<s2>Utrecht</s2>
<s3>NLD</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
</inist:fA14>
<country>Pays-Bas</country>
<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="Kappers, A M L" sort="Kappers, A M L" uniqKey="Kappers A" first="A. M. L." last="Kappers">A. M. L. Kappers</name>
<affiliation wicri:level="4"><inist:fA14 i1="01"><s1>Utrecht University</s1>
<s2>Utrecht</s2>
<s3>NLD</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
</inist:fA14>
<country>Pays-Bas</country>
<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="Koenderink, J J" sort="Koenderink, J J" uniqKey="Koenderink J" first="J. J." last="Koenderink">J. J. Koenderink</name>
<affiliation wicri:level="4"><inist:fA14 i1="01"><s1>Utrecht University</s1>
<s2>Utrecht</s2>
<s3>NLD</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
</inist:fA14>
<country>Pays-Bas</country>
<placeName><settlement type="city">Utrecht</settlement>
<region nuts="2" type="province">Utrecht (province)</region>
</placeName>
<orgName type="university">Université d'Utrecht</orgName>
</affiliation>
</author>
</titleStmt>
<publicationStmt><idno type="wicri:source">INIST</idno>
<idno type="inist">03-0026442</idno>
<date when="2002">2002</date>
<idno type="stanalyst">PASCAL 03-0026442 INIST</idno>
<idno type="RBID">Pascal:03-0026442</idno>
<idno type="wicri:Area/PascalFrancis/Corpus">001220</idno>
<idno type="wicri:Area/PascalFrancis/Curation">000291</idno>
<idno type="wicri:Area/PascalFrancis/Checkpoint">001040</idno>
<idno type="wicri:doubleKey">0031-5117:2002:Louw S:active:haptic:detection</idno>
<idno type="wicri:Area/Main/Merge">007980</idno>
</publicationStmt>
<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Active haptic detection and discrimination of shape</title>
<author><name sortKey="Louw, S" sort="Louw, S" uniqKey="Louw S" first="S." last="Louw">S. Louw</name>
<affiliation wicri:level="4"><inist:fA14 i1="01"><s1>Utrecht University</s1>
<s2>Utrecht</s2>
<s3>NLD</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
</inist:fA14>
<country>Pays-Bas</country>
<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="Kappers, A M L" sort="Kappers, A M L" uniqKey="Kappers A" first="A. M. L." last="Kappers">A. M. L. Kappers</name>
<affiliation wicri:level="4"><inist:fA14 i1="01"><s1>Utrecht University</s1>
<s2>Utrecht</s2>
<s3>NLD</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
</inist:fA14>
<country>Pays-Bas</country>
<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="Koenderink, J J" sort="Koenderink, J J" uniqKey="Koenderink J" first="J. J." last="Koenderink">J. J. Koenderink</name>
<affiliation wicri:level="4"><inist:fA14 i1="01"><s1>Utrecht University</s1>
<s2>Utrecht</s2>
<s3>NLD</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
</inist:fA14>
<country>Pays-Bas</country>
<placeName><settlement type="city">Utrecht</settlement>
<region nuts="2" type="province">Utrecht (province)</region>
</placeName>
<orgName type="university">Université d'Utrecht</orgName>
</affiliation>
</author>
</analytic>
<series><title level="j" type="main">Perception & psychophysics</title>
<title level="j" type="abbreviated">Percept. psychophys.</title>
<idno type="ISSN">0031-5117</idno>
<imprint><date when="2002">2002</date>
</imprint>
</series>
</biblStruct>
</sourceDesc>
<seriesStmt><title level="j" type="main">Perception & psychophysics</title>
<title level="j" type="abbreviated">Percept. psychophys.</title>
<idno type="ISSN">0031-5117</idno>
</seriesStmt>
</fileDesc>
<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Detection threshold</term>
<term>Differential threshold</term>
<term>Experimental study</term>
<term>Human</term>
<term>Perception</term>
<term>Psychometric function</term>
<term>Psychophysics</term>
<term>Stimulus discrimination</term>
<term>Stimulus shape</term>
<term>Tactile sensitivity</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Etude expérimentale</term>
<term>Sensibilité tactile</term>
<term>Discrimination stimulus</term>
<term>Seuil détection</term>
<term>Forme stimulus</term>
<term>Fonction psychométrique</term>
<term>Seuil différentiel</term>
<term>Psychophysique</term>
<term>Perception</term>
<term>Homme</term>
</keywords>
<keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Homme</term>
</keywords>
</textClass>
</profileDesc>
</teiHeader>
<front><div type="abstract" xml:lang="en">In previous research, we have shown that detection thresholds for Gaussian shapes increase with a power of 1.3 of spatial width. In the present three experiments, we generalized this finding to more complex shapes and to discrimination tasks. In Experiment 1, we found that the slope of the psychometric function for detection (i.e., distinguishing curved from flat surfaces) was independent of surface shape. In Experiment 3, we found the same result for discrimination of two different curved shapes. In Experiment 2, we found that detection and discrimination functions had the same dependence on spatial width, except that discrimination thresholds were two to four times larger. Possible neural mechanisms underlying these results are discussed.</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="Louw, S" sort="Louw, S" uniqKey="Louw S" first="S." last="Louw">S. Louw</name>
</region>
<name sortKey="Kappers, A M L" sort="Kappers, A M L" uniqKey="Kappers A" first="A. M. L." last="Kappers">A. M. L. Kappers</name>
<name sortKey="Koenderink, J J" sort="Koenderink, J J" uniqKey="Koenderink J" first="J. J." last="Koenderink">J. J. Koenderink</name>
</country>
</tree>
</affiliations>
</record>
Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Ticri/CIDE/explor/HapticV1/Data/Main/Merge
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 007980 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Main/Merge/biblio.hfd -nk 007980 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien |wiki= Ticri/CIDE |area= HapticV1 |flux= Main |étape= Merge |type= RBID |clé= Pascal:03-0026442 |texte= Active haptic detection and discrimination of shape }}
This area was generated with Dilib version V0.6.23. |