Factors Influencing Haptic Perception of Complex Shapes.
Identifieur interne : 001350 ( PubMed/Corpus ); précédent : 001349; suivant : 001351Factors Influencing Haptic Perception of Complex Shapes.
Auteurs : Jonathan M. Ehrich ; Martha Flanders ; John F. SoechtingSource :
- IEEE transactions on haptics [ 2329-4051 ] ; 2008.
Abstract
Exploration of an object by arm movement and somatosensation is a serial process that relies on memories and expectations. The present experiments tested the hypothesis that this process involves breaking the object into component shapes (primitives). This was tested by having human subjects explore shapes composed of semicircular arcs, as well as quarter circles or quarter ellipses. The subjects' perception was reported using a visual display. In the first experiment, in which a series of semicircular arcs was presented, with offsets that differed from trial to trial, performance was consistent with the perception of two (left and right) semicircles. In the second experiment, subjects often failed to detect the quarter circles or quarter ellipses and again behaved as if the object was composed of two (top and bottom) semicircles. The results suggest that the synthesis of haptically sensed shapes is biased toward simple geometric objects and that it can be strongly influenced by expectations.
DOI: 10.1109/ToH.2008.4
PubMed: 19122819
Links to Exploration step
pubmed:19122819Le document en format XML
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E-mail: flan001@umn.edu , soech001@umn.edu.</nlm:affiliation></affiliation></author><author><name sortKey="Flanders, Martha" sort="Flanders, Martha" uniqKey="Flanders M" first="Martha" last="Flanders">Martha Flanders</name></author><author><name sortKey="Soechting, John F" sort="Soechting, John F" uniqKey="Soechting J" first="John F" last="Soechting">John F. Soechting</name></author></analytic><series><title level="j">IEEE transactions on haptics</title><idno type="eISSN">2329-4051</idno><imprint><date when="2008" type="published">2008</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Exploration of an object by arm movement and somatosensation is a serial process that relies on memories and expectations. The present experiments tested the hypothesis that this process involves breaking the object into component shapes (primitives). This was tested by having human subjects explore shapes composed of semicircular arcs, as well as quarter circles or quarter ellipses. The subjects' perception was reported using a visual display. In the first experiment, in which a series of semicircular arcs was presented, with offsets that differed from trial to trial, performance was consistent with the perception of two (left and right) semicircles. In the second experiment, subjects often failed to detect the quarter circles or quarter ellipses and again behaved as if the object was composed of two (top and bottom) semicircles. The results suggest that the synthesis of haptically sensed shapes is biased toward simple geometric objects and that it can be strongly influenced by expectations.</div></front></TEI><pubmed><MedlineCitation Status="Publisher" Owner="NLM"><PMID Version="1">19122819</PMID><DateCreated><Year>2011</Year><Month>9</Month><Day>27</Day></DateCreated><Article PubModel="Print"><Journal><ISSN IssnType="Electronic">2329-4051</ISSN><JournalIssue CitedMedium="Internet"><Volume>1</Volume><Issue>1</Issue><PubDate><Year>2008</Year></PubDate></JournalIssue><Title>IEEE transactions on haptics</Title><ISOAbbreviation>IEEE Trans Haptics</ISOAbbreviation></Journal><ArticleTitle>Factors Influencing Haptic Perception of Complex Shapes.</ArticleTitle><Pagination><MedlinePgn>19-26</MedlinePgn></Pagination><Abstract><AbstractText>Exploration of an object by arm movement and somatosensation is a serial process that relies on memories and expectations. The present experiments tested the hypothesis that this process involves breaking the object into component shapes (primitives). This was tested by having human subjects explore shapes composed of semicircular arcs, as well as quarter circles or quarter ellipses. The subjects' perception was reported using a visual display. In the first experiment, in which a series of semicircular arcs was presented, with offsets that differed from trial to trial, performance was consistent with the perception of two (left and right) semicircles. In the second experiment, subjects often failed to detect the quarter circles or quarter ellipses and again behaved as if the object was composed of two (top and bottom) semicircles. The results suggest that the synthesis of haptically sensed shapes is biased toward simple geometric objects and that it can be strongly influenced by expectations.</AbstractText></Abstract><AuthorList><Author><LastName>Ehrich</LastName><ForeName>Jonathan M</ForeName><Initials>JM</Initials><AffiliationInfo><Affiliation>J.M. Ehrich is with the Graduate Program in Neurobiology and Behavior, University of Washington, Seattle, WA 98195. E-mail: jonathan.ehrich@gmail.com . M. Flanders and J.F. Soechting are with the Department of Neuroscience, University of Minnesota, Minneapolis, MN 55455. 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