Euclidean metric representations of haptically explored triangles.
Identifieur interne : 001B10 ( PubMed/Checkpoint ); précédent : 001B09; suivant : 001B11Euclidean metric representations of haptically explored triangles.
Auteurs : M. Lanca [États-Unis] ; D J BryantSource :
- The American journal of psychology [ 0002-9556 ] ; 2001.
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Abstract
This study explored whether people create Euclidean representations of 2-dimensional right triangles from touch and use them to make spatial inferences in accord with Euclidean distance axioms. Blindfolded participants who were instructed to form visual images of triangles felt the vertical and horizontal sides of right triangles, then estimated the lengths (but not the angles) of the 3 triangle sides. In these 3 experiments, length estimates conformed closely to the Euclidean metric when evaluated on application of the Pythagorean theorem. Participants who used a visual imaging strategy were accurate more often than those who used visual imagery less often. In Experiments 2 and 3, a hypotenuse inference was as accurate as a direct haptic judgment of the hypotenuse. These results demonstrated similar accuracy of the hypotenuse judgments when participants made verbal rather than haptic estimates. The findings indicate that participants can form Euclidean representations under certain conditions from felt 2-dimensional right triangles based on visual images.
PubMed: 11641886
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Margaret_Lanca@hms.harvard.edu</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Northeastern University</wicri:regionArea></affiliation></author><author><name sortKey="Bryant, D J" sort="Bryant, D J" uniqKey="Bryant D" first="D J" last="Bryant">D J Bryant</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2001">2001</date><idno type="RBID">pubmed:11641886</idno><idno type="pmid">11641886</idno><idno type="wicri:Area/PubMed/Corpus">001D19</idno><idno type="wicri:Area/PubMed/Curation">001D19</idno><idno type="wicri:Area/PubMed/Checkpoint">001B10</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Euclidean metric representations of haptically explored triangles.</title><author><name sortKey="Lanca, M" sort="Lanca, M" uniqKey="Lanca M" first="M" last="Lanca">M. Lanca</name><affiliation wicri:level="1"><nlm:affiliation>Northeastern University, USA. Margaret_Lanca@hms.harvard.edu</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Northeastern University</wicri:regionArea></affiliation></author><author><name sortKey="Bryant, D J" sort="Bryant, D J" uniqKey="Bryant D" first="D J" last="Bryant">D J Bryant</name></author></analytic><series><title level="j">The American journal of psychology</title><idno type="ISSN">0002-9556</idno><imprint><date when="2001" type="published">2001</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Form Perception</term><term>Humans</term><term>Imagination</term><term>Space Perception</term><term>Touch</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Form Perception</term><term>Humans</term><term>Imagination</term><term>Space Perception</term><term>Touch</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">This study explored whether people create Euclidean representations of 2-dimensional right triangles from touch and use them to make spatial inferences in accord with Euclidean distance axioms. Blindfolded participants who were instructed to form visual images of triangles felt the vertical and horizontal sides of right triangles, then estimated the lengths (but not the angles) of the 3 triangle sides. In these 3 experiments, length estimates conformed closely to the Euclidean metric when evaluated on application of the Pythagorean theorem. Participants who used a visual imaging strategy were accurate more often than those who used visual imagery less often. In Experiments 2 and 3, a hypotenuse inference was as accurate as a direct haptic judgment of the hypotenuse. These results demonstrated similar accuracy of the hypotenuse judgments when participants made verbal rather than haptic estimates. The findings indicate that participants can form Euclidean representations under certain conditions from felt 2-dimensional right triangles based on visual images.</div></front></TEI><pubmed><MedlineCitation Owner="NLM" Status="MEDLINE"><PMID Version="1">11641886</PMID><DateCreated><Year>2001</Year><Month>10</Month><Day>19</Day></DateCreated><DateCompleted><Year>2002</Year><Month>02</Month><Day>26</Day></DateCompleted><DateRevised><Year>2006</Year><Month>11</Month><Day>15</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0002-9556</ISSN><JournalIssue CitedMedium="Print"><Volume>114</Volume><Issue>3</Issue><PubDate><Year>2001</Year><Season>Autumn</Season></PubDate></JournalIssue><Title>The American journal of psychology</Title><ISOAbbreviation>Am J Psychol</ISOAbbreviation></Journal><ArticleTitle>Euclidean metric representations of haptically explored triangles.</ArticleTitle><Pagination><MedlinePgn>377-409</MedlinePgn></Pagination><Abstract><AbstractText>This study explored whether people create Euclidean representations of 2-dimensional right triangles from touch and use them to make spatial inferences in accord with Euclidean distance axioms. Blindfolded participants who were instructed to form visual images of triangles felt the vertical and horizontal sides of right triangles, then estimated the lengths (but not the angles) of the 3 triangle sides. In these 3 experiments, length estimates conformed closely to the Euclidean metric when evaluated on application of the Pythagorean theorem. Participants who used a visual imaging strategy were accurate more often than those who used visual imagery less often. In Experiments 2 and 3, a hypotenuse inference was as accurate as a direct haptic judgment of the hypotenuse. These results demonstrated similar accuracy of the hypotenuse judgments when participants made verbal rather than haptic estimates. 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