Haptic shape discrimination in humans: insight into haptic frames of reference.
Identifieur interne : 001928 ( PubMed/Corpus ); précédent : 001927; suivant : 001929Haptic shape discrimination in humans: insight into haptic frames of reference.
Auteurs : Julien Voisin ; Guillaume Michaud ; C Elaine ChapmanSource :
- Experimental brain research [ 0014-4819 ] ; 2005.
English descriptors
- KwdEn :
- MESH :
Abstract
This study investigates how a change in the physical relation between objects (two-dimensional, 2-D, angles) and a subject, as well as scanning conditions, modify the ability to discriminate small changes in 2-D shape. Subjects scanned pairs of angles (90 masculine standard; 91 masculine-103 masculine comparison angles) with the right index finger of the out-stretched arm, identifying the larger of each pair. When joint rotation was restricted to the shoulder, the discrimination threshold significantly increased when the angles were explored with the shoulder in a more eccentric position rather than closer to the midline (60 masculine versus 30 masculine to the right). This result was attributed to changes in proprioceptive sensitivity, since explorations restricted to distal joints (wrist/second metacarpophalangeal joint) showed no change with shoulder position. The results showed, moreover, that discrimination threshold was similar for distal and proximal joints when the delay between scanning the pairs of angles was long (15 s). This observation suggests that regional variations in proprioceptive acuity (proximal>distal) may reflect an adaptation to generate an invariant central representation of haptic shape. Using a shorter interscan delay (5 s), a position-dependent increase in discrimination threshold was revealed for distal explorations, an effect that disappeared when the head was turned in the direction of the unseen angle (vision occluded). We suggest that these results can be explained by the existence of two competing egocentric frames of reference with different time courses, one of short duration that is centred on the arm/hand, and a second of longer duration centred on the head. At the short delay, the reference frames interacted to distort the haptic representation when they were misaligned. This distortion was resolved at the long delay, possibly through suppression of the arm/hand-centred reference frame.
DOI: 10.1007/s00221-005-2256-3
PubMed: 15959722
Links to Exploration step
pubmed:15959722Le document en format XML
<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Haptic shape discrimination in humans: insight into haptic frames of reference.</title><author><name sortKey="Voisin, Julien" sort="Voisin, Julien" uniqKey="Voisin J" first="Julien" last="Voisin">Julien Voisin</name><affiliation><nlm:affiliation>Centre de Recherche en Sciences Neurologiques, Département de Physiologie, Université de Montréal, 6128, Succursale Centre Ville, Montréal, QC, Canada, H3C 3J7.</nlm:affiliation></affiliation></author><author><name sortKey="Michaud, Guillaume" sort="Michaud, Guillaume" uniqKey="Michaud G" first="Guillaume" last="Michaud">Guillaume Michaud</name></author><author><name sortKey="Chapman, C Elaine" sort="Chapman, C Elaine" uniqKey="Chapman C" first="C Elaine" last="Chapman">C Elaine Chapman</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2005">2005</date><idno type="doi">10.1007/s00221-005-2256-3</idno><idno type="RBID">pubmed:15959722</idno><idno type="pmid">15959722</idno><idno type="wicri:Area/PubMed/Corpus">001928</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Haptic shape discrimination in humans: insight into haptic frames of reference.</title><author><name sortKey="Voisin, Julien" sort="Voisin, Julien" uniqKey="Voisin J" first="Julien" last="Voisin">Julien Voisin</name><affiliation><nlm:affiliation>Centre de Recherche en Sciences Neurologiques, Département de Physiologie, Université de Montréal, 6128, Succursale Centre Ville, Montréal, QC, Canada, H3C 3J7.</nlm:affiliation></affiliation></author><author><name sortKey="Michaud, Guillaume" sort="Michaud, Guillaume" uniqKey="Michaud G" first="Guillaume" last="Michaud">Guillaume Michaud</name></author><author><name sortKey="Chapman, C Elaine" sort="Chapman, C Elaine" uniqKey="Chapman C" first="C Elaine" last="Chapman">C Elaine Chapman</name></author></analytic><series><title level="j">Experimental brain research</title><idno type="ISSN">0014-4819</idno><imprint><date when="2005" type="published">2005</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Adult</term><term>Differential Threshold (physiology)</term><term>Discrimination (Psychology) (physiology)</term><term>Female</term><term>Form Perception (physiology)</term><term>Head (physiology)</term><term>Humans</term><term>Male</term><term>Orientation</term><term>Posture</term><term>Psychophysics</term><term>Recognition (Psychology) (physiology)</term><term>Reference Values</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Differential Threshold</term><term>Discrimination (Psychology)</term><term>Form Perception</term><term>Head</term><term>Recognition (Psychology)</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Adult</term><term>Female</term><term>Humans</term><term>Male</term><term>Orientation</term><term>Posture</term><term>Psychophysics</term><term>Reference Values</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">This study investigates how a change in the physical relation between objects (two-dimensional, 2-D, angles) and a subject, as well as scanning conditions, modify the ability to discriminate small changes in 2-D shape. Subjects scanned pairs of angles (90 masculine standard; 91 masculine-103 masculine comparison angles) with the right index finger of the out-stretched arm, identifying the larger of each pair. When joint rotation was restricted to the shoulder, the discrimination threshold significantly increased when the angles were explored with the shoulder in a more eccentric position rather than closer to the midline (60 masculine versus 30 masculine to the right). This result was attributed to changes in proprioceptive sensitivity, since explorations restricted to distal joints (wrist/second metacarpophalangeal joint) showed no change with shoulder position. The results showed, moreover, that discrimination threshold was similar for distal and proximal joints when the delay between scanning the pairs of angles was long (15 s). This observation suggests that regional variations in proprioceptive acuity (proximal>distal) may reflect an adaptation to generate an invariant central representation of haptic shape. Using a shorter interscan delay (5 s), a position-dependent increase in discrimination threshold was revealed for distal explorations, an effect that disappeared when the head was turned in the direction of the unseen angle (vision occluded). We suggest that these results can be explained by the existence of two competing egocentric frames of reference with different time courses, one of short duration that is centred on the arm/hand, and a second of longer duration centred on the head. At the short delay, the reference frames interacted to distort the haptic representation when they were misaligned. This distortion was resolved at the long delay, possibly through suppression of the arm/hand-centred reference frame.</div></front></TEI><pubmed><MedlineCitation Owner="NLM" Status="MEDLINE"><PMID Version="1">15959722</PMID><DateCreated><Year>2005</Year><Month>07</Month><Day>19</Day></DateCreated><DateCompleted><Year>2005</Year><Month>12</Month><Day>15</Day></DateCompleted><DateRevised><Year>2013</Year><Month>12</Month><Day>13</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Print">0014-4819</ISSN><JournalIssue CitedMedium="Print"><Volume>164</Volume><Issue>3</Issue><PubDate><Year>2005</Year><Month>Jul</Month></PubDate></JournalIssue><Title>Experimental brain research</Title><ISOAbbreviation>Exp Brain Res</ISOAbbreviation></Journal><ArticleTitle>Haptic shape discrimination in humans: insight into haptic frames of reference.</ArticleTitle><Pagination><MedlinePgn>347-56</MedlinePgn></Pagination><Abstract><AbstractText>This study investigates how a change in the physical relation between objects (two-dimensional, 2-D, angles) and a subject, as well as scanning conditions, modify the ability to discriminate small changes in 2-D shape. Subjects scanned pairs of angles (90 masculine standard; 91 masculine-103 masculine comparison angles) with the right index finger of the out-stretched arm, identifying the larger of each pair. When joint rotation was restricted to the shoulder, the discrimination threshold significantly increased when the angles were explored with the shoulder in a more eccentric position rather than closer to the midline (60 masculine versus 30 masculine to the right). This result was attributed to changes in proprioceptive sensitivity, since explorations restricted to distal joints (wrist/second metacarpophalangeal joint) showed no change with shoulder position. The results showed, moreover, that discrimination threshold was similar for distal and proximal joints when the delay between scanning the pairs of angles was long (15 s). This observation suggests that regional variations in proprioceptive acuity (proximal>distal) may reflect an adaptation to generate an invariant central representation of haptic shape. Using a shorter interscan delay (5 s), a position-dependent increase in discrimination threshold was revealed for distal explorations, an effect that disappeared when the head was turned in the direction of the unseen angle (vision occluded). We suggest that these results can be explained by the existence of two competing egocentric frames of reference with different time courses, one of short duration that is centred on the arm/hand, and a second of longer duration centred on the head. At the short delay, the reference frames interacted to distort the haptic representation when they were misaligned. This distortion was resolved at the long delay, possibly through suppression of the arm/hand-centred reference frame.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Voisin</LastName><ForeName>Julien</ForeName><Initials>J</Initials><AffiliationInfo><Affiliation>Centre de Recherche en Sciences Neurologiques, Département de Physiologie, Université de Montréal, 6128, Succursale Centre Ville, Montréal, QC, Canada, H3C 3J7.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Michaud</LastName><ForeName>Guillaume</ForeName><Initials>G</Initials></Author><Author ValidYN="Y"><LastName>Chapman</LastName><ForeName>C Elaine</ForeName><Initials>CE</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D003160">Comparative Study</PublicationType><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2005</Year><Month>06</Month><Day>14</Day></ArticleDate></Article><MedlineJournalInfo><Country>Germany</Country><MedlineTA>Exp Brain Res</MedlineTA><NlmUniqueID>0043312</NlmUniqueID><ISSNLinking>0014-4819</ISSNLinking></MedlineJournalInfo><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName MajorTopicYN="N" UI="D000328">Adult</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D004056">Differential Threshold</DescriptorName><QualifierName MajorTopicYN="N" UI="Q000502">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D004192">Discrimination (Psychology)</DescriptorName><QualifierName MajorTopicYN="Y" UI="Q000502">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D005260">Female</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D005556">Form Perception</DescriptorName><QualifierName MajorTopicYN="Y" UI="Q000502">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D006257">Head</DescriptorName><QualifierName MajorTopicYN="N" UI="Q000502">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D006801">Humans</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D008297">Male</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="Y" UI="D009949">Orientation</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="Y" UI="D011187">Posture</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D011601">Psychophysics</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D021641">Recognition (Psychology)</DescriptorName><QualifierName MajorTopicYN="Y" UI="Q000502">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D012016">Reference Values</DescriptorName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2004</Year><Month>7</Month><Day>22</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2004</Year><Month>12</Month><Day>6</Day></PubMedPubDate><PubMedPubDate PubStatus="aheadofprint"><Year>2005</Year><Month>6</Month><Day>14</Day></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2005</Year><Month>6</Month><Day>17</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2005</Year><Month>12</Month><Day>16</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2005</Year><Month>6</Month><Day>17</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="doi">10.1007/s00221-005-2256-3</ArticleId><ArticleId IdType="pubmed">15959722</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Ticri/CIDE/explor/HapticV1/Data/PubMed/Corpus
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 001928 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/PubMed/Corpus/biblio.hfd -nk 001928 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien
|wiki= Ticri/CIDE
|area= HapticV1
|flux= PubMed
|étape= Corpus
|type= RBID
|clé= pubmed:15959722
|texte= Haptic shape discrimination in humans: insight into haptic frames of reference.
}}
Pour générer des pages wiki
HfdIndexSelect -h $EXPLOR_AREA/Data/PubMed/Corpus/RBID.i -Sk "pubmed:15959722" \
| HfdSelect -Kh $EXPLOR_AREA/Data/PubMed/Corpus/biblio.hfd \
| NlmPubMed2Wicri -a HapticV1
| This area was generated with Dilib version V0.6.23. |  |