Exploratory pressure influences haptic shape perception via force signals.
Identifieur interne : 003785 ( Main/Merge ); précédent : 003784; suivant : 003786Exploratory pressure influences haptic shape perception via force signals.
Auteurs : Lukas Kaim [Allemagne] ; Knut DrewingSource :
- Attention, perception & psychophysics [ 1943-393X ] ; 2010.
English descriptors
- KwdEn :
- MESH :
Abstract
In this study of the haptic perception of small bumps, we investigated the influence of exploratory movement variation on signal integration and the percept's reliability. When sliding across a bump on a surface, the finger follows the geometry of the bump (i.e., the position signal). At the same time, patterns of forces depending on the gradient of the bump act on the finger (i.e., the force signal; Robles-de-la-Torre & Hayward, 2001). Consistent with the maximum likelihood estimation (MLE) model, haptically perceived shape can be described by a weighted average of the shapes signaled by the position and force signals (Drewing & Ernst, 2006; Ernst & Banks, 2002). Here, we found that the weights of the position and force signals and the reliability of the shape percept depend on the pressure (and velocity) of the exploratory movement (Experiment 1). These effects could not be traced back to pressure effects on the reliability of the single signals, as would be predicted from the MLE model (Experiment 2). However, we found that the signal-specific shape estimate derived from the force signal increases with increasing pressure (Experiment 3), and this bias can explain the perceptual effects of exploratory pressure.
DOI: 10.3758/APP.72.3.823
PubMed: 20348586
Links toward previous steps (curation, corpus...)
- to stream PubMed, to step Corpus: 001120
- to stream PubMed, to step Curation: 001120
- to stream PubMed, to step Checkpoint: 000F53
- to stream Ncbi, to step Merge: 001485
- to stream Ncbi, to step Curation: 001485
- to stream Ncbi, to step Checkpoint: 001485
Links to Exploration step
pubmed:20348586Le document en format XML
<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Exploratory pressure influences haptic shape perception via force signals.</title>
<author><name sortKey="Kaim, Lukas" sort="Kaim, Lukas" uniqKey="Kaim L" first="Lukas" last="Kaim">Lukas Kaim</name>
<affiliation wicri:level="1"><nlm:affiliation>Institute for Psychology, University of Giessen, Giessen, Germany. lukas.kaim@psychol.uni-giessen.de</nlm:affiliation>
<country xml:lang="fr">Allemagne</country>
<wicri:regionArea>Institute for Psychology, University of Giessen, Giessen</wicri:regionArea>
<wicri:noRegion>Giessen</wicri:noRegion>
<wicri:noRegion>Giessen</wicri:noRegion>
<wicri:noRegion>Giessen</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Drewing, Knut" sort="Drewing, Knut" uniqKey="Drewing K" first="Knut" last="Drewing">Knut Drewing</name>
</author>
</titleStmt>
<publicationStmt><idno type="wicri:source">PubMed</idno>
<date when="2010">2010</date>
<idno type="doi">10.3758/APP.72.3.823</idno>
<idno type="RBID">pubmed:20348586</idno>
<idno type="pmid">20348586</idno>
<idno type="wicri:Area/PubMed/Corpus">001120</idno>
<idno type="wicri:Area/PubMed/Curation">001120</idno>
<idno type="wicri:Area/PubMed/Checkpoint">000F53</idno>
<idno type="wicri:Area/Ncbi/Merge">001485</idno>
<idno type="wicri:Area/Ncbi/Curation">001485</idno>
<idno type="wicri:Area/Ncbi/Checkpoint">001485</idno>
<idno type="wicri:Area/Main/Merge">003785</idno>
</publicationStmt>
<sourceDesc><biblStruct><analytic><title xml:lang="en">Exploratory pressure influences haptic shape perception via force signals.</title>
<author><name sortKey="Kaim, Lukas" sort="Kaim, Lukas" uniqKey="Kaim L" first="Lukas" last="Kaim">Lukas Kaim</name>
<affiliation wicri:level="1"><nlm:affiliation>Institute for Psychology, University of Giessen, Giessen, Germany. lukas.kaim@psychol.uni-giessen.de</nlm:affiliation>
<country xml:lang="fr">Allemagne</country>
<wicri:regionArea>Institute for Psychology, University of Giessen, Giessen</wicri:regionArea>
<wicri:noRegion>Giessen</wicri:noRegion>
<wicri:noRegion>Giessen</wicri:noRegion>
<wicri:noRegion>Giessen</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Drewing, Knut" sort="Drewing, Knut" uniqKey="Drewing K" first="Knut" last="Drewing">Knut Drewing</name>
</author>
</analytic>
<series><title level="j">Attention, perception & psychophysics</title>
<idno type="eISSN">1943-393X</idno>
<imprint><date when="2010" type="published">2010</date>
</imprint>
</series>
</biblStruct>
</sourceDesc>
</fileDesc>
<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Adult</term>
<term>Female</term>
<term>Form Perception</term>
<term>Humans</term>
<term>Male</term>
<term>Models, Psychological</term>
<term>Pressure</term>
<term>Signal Detection, Psychological</term>
<term>Touch</term>
<term>Young Adult</term>
</keywords>
<keywords scheme="MESH" xml:lang="en"><term>Adult</term>
<term>Female</term>
<term>Form Perception</term>
<term>Humans</term>
<term>Male</term>
<term>Models, Psychological</term>
<term>Pressure</term>
<term>Signal Detection, Psychological</term>
<term>Touch</term>
<term>Young Adult</term>
</keywords>
</textClass>
</profileDesc>
</teiHeader>
<front><div type="abstract" xml:lang="en">In this study of the haptic perception of small bumps, we investigated the influence of exploratory movement variation on signal integration and the percept's reliability. When sliding across a bump on a surface, the finger follows the geometry of the bump (i.e., the position signal). At the same time, patterns of forces depending on the gradient of the bump act on the finger (i.e., the force signal; Robles-de-la-Torre & Hayward, 2001). Consistent with the maximum likelihood estimation (MLE) model, haptically perceived shape can be described by a weighted average of the shapes signaled by the position and force signals (Drewing & Ernst, 2006; Ernst & Banks, 2002). Here, we found that the weights of the position and force signals and the reliability of the shape percept depend on the pressure (and velocity) of the exploratory movement (Experiment 1). These effects could not be traced back to pressure effects on the reliability of the single signals, as would be predicted from the MLE model (Experiment 2). However, we found that the signal-specific shape estimate derived from the force signal increases with increasing pressure (Experiment 3), and this bias can explain the perceptual effects of exploratory pressure.</div>
</front>
</TEI>
</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 003785 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Main/Merge/biblio.hfd -nk 003785 | 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= pubmed:20348586 |texte= Exploratory pressure influences haptic shape perception via force signals. }}
Pour générer des pages wiki
HfdIndexSelect -h $EXPLOR_AREA/Data/Main/Merge/RBID.i -Sk "pubmed:20348586" \ | HfdSelect -Kh $EXPLOR_AREA/Data/Main/Merge/biblio.hfd \ | NlmPubMed2Wicri -a HapticV1
![]() | This area was generated with Dilib version V0.6.23. | ![]() |