Eigenvalues of the inertia tensor and exteroception by the “muscular sense”
Identifieur interne : 000556 ( Istex/Corpus ); précédent : 000555; suivant : 000557Eigenvalues of the inertia tensor and exteroception by the “muscular sense”
Auteurs : P. Fitzpatrick ; C. Carello ; M. T. TurveySource :
- Neuroscience [ 0306-4522 ] ; 1993.
English descriptors
Abstract
Muscle spindles and Golgi tendon organs constitute the receptor foundation to the “muscle sense”. Muscle sensitivity has long been assumed relevant to the non-visual perception of the positions and motions of the body's segments and of the properties of hand-held objects. Dynamic touch is the label given to the particular kind of tactile exteroperception that involves a non-spatial input from muscles and tendons. When a hand-held object is wielded, hefted, carried and so on, the hand movements, together with the physical properties of the object, produce torques and angular motions that change in time with the movement. There is, however, an unchanging quantity that relates the variable torques and angular motions, namely, the object's inertia for rotation about a fixed point in the wrist. Our research revealed that the non-visual perception of the length of a wielded object by dynamic touch is a function of muscular sensitivity to the principal moments or eigenvalues of the inertia tensor.Across four experiments, variations in object length were accompanied by variations in width, spatial and material heterogeneity, the relation of the tensorial components to mass, and geometric shape. Subjects had no foreknowledge of the variations in object dimensions. Perceived lengths of occluded objects were reported by adjusting a visible marker so that its position corresponded to the position of the felt end of the object. In each experiment, perceived length was closely related to actual length and uniquely constrained by the major and minor eigenvalues of the inertia tensor.The present results, in conjunction with previous research, suggest that the inertia tensor provides the domains for two sets of functions realized by the “muscular sense” one consisting of the principal moments of inertia or eigenvalues, which map on to perceived object magnitudes (e.g. length, weight), and one consisting of the principal directions or eigenvectors, which map on to perceived relations between hand and object (e.g. position of grasp). The significance of information-perception specificity over cognitive mechanisms is underlined and perspectives on dynamic touch and its underlying muscular sensitivity, including a general tensorial analysis, are discussed.
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DOI: 10.1016/0306-4522(94)90264-X
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ISTEX:F8F596298612791D9AD0736AC8FB3A66E1CA3903Le document en format XML
<record><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title xml:lang="en">Eigenvalues of the inertia tensor and exteroception by the “muscular sense”</title><author><name sortKey="Fitzpatrick, P" sort="Fitzpatrick, P" uniqKey="Fitzpatrick P" first="P." last="Fitzpatrick">P. Fitzpatrick</name><affiliation><mods:affiliation>Center for the Ecological Study of Perception and Action, University of Connecticut, Storrs, CT 06269-1020, U.S.A.</mods:affiliation></affiliation></author><author><name sortKey="Carello, C" sort="Carello, C" uniqKey="Carello C" first="C." last="Carello">C. Carello</name><affiliation><mods:affiliation>Center for the Ecological Study of Perception and Action, University of Connecticut, Storrs, CT 06269-1020, U.S.A.</mods:affiliation></affiliation></author><author><name sortKey="Turvey, M T" sort="Turvey, M T" uniqKey="Turvey M" first="M. T." last="Turvey">M. T. Turvey</name><affiliation><mods:affiliation>Center for the Ecological Study of Perception and Action, University of Connecticut, Storrs, CT 06269-1020, U.S.A.</mods:affiliation></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:F8F596298612791D9AD0736AC8FB3A66E1CA3903</idno><date when="1994" year="1994">1994</date><idno type="doi">10.1016/0306-4522(94)90264-X</idno><idno type="url">https://api.istex.fr/document/F8F596298612791D9AD0736AC8FB3A66E1CA3903/fulltext/pdf</idno><idno type="wicri:Area/Istex/Corpus">000556</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a" type="main" xml:lang="en">Eigenvalues of the inertia tensor and exteroception by the “muscular sense”</title><author><name sortKey="Fitzpatrick, P" sort="Fitzpatrick, P" uniqKey="Fitzpatrick P" first="P." last="Fitzpatrick">P. Fitzpatrick</name><affiliation><mods:affiliation>Center for the Ecological Study of Perception and Action, University of Connecticut, Storrs, CT 06269-1020, U.S.A.</mods:affiliation></affiliation></author><author><name sortKey="Carello, C" sort="Carello, C" uniqKey="Carello C" first="C." last="Carello">C. Carello</name><affiliation><mods:affiliation>Center for the Ecological Study of Perception and Action, University of Connecticut, Storrs, CT 06269-1020, U.S.A.</mods:affiliation></affiliation></author><author><name sortKey="Turvey, M T" sort="Turvey, M T" uniqKey="Turvey M" first="M. T." last="Turvey">M. T. Turvey</name><affiliation><mods:affiliation>Center for the Ecological Study of Perception and Action, University of Connecticut, Storrs, CT 06269-1020, U.S.A.</mods:affiliation></affiliation></author></analytic><monogr></monogr><series><title level="j">Neuroscience</title><title level="j" type="abbrev">NSC</title><idno type="ISSN">0306-4522</idno><imprint><publisher>ELSEVIER</publisher><date type="published" when="1993">1993</date><biblScope unit="volume">60</biblScope><biblScope unit="issue">2</biblScope><biblScope unit="page" from="551">551</biblScope><biblScope unit="page" to="568">568</biblScope></imprint><idno type="ISSN">0306-4522</idno></series><idno type="istex">F8F596298612791D9AD0736AC8FB3A66E1CA3903</idno><idno type="DOI">10.1016/0306-4522(94)90264-X</idno><idno type="PII">0306-4522(94)90264-X</idno><idno type="ArticleID">9490264X</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0306-4522</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>D</term><term>I</term><term>J</term><term>La</term><term>Lp</term><term>MSE</term><term>N</term><term>O</term><term>V</term><term>a</term><term>δijk</term><term>λ</term><term>ω</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Muscle spindles and Golgi tendon organs constitute the receptor foundation to the “muscle sense”. Muscle sensitivity has long been assumed relevant to the non-visual perception of the positions and motions of the body's segments and of the properties of hand-held objects. Dynamic touch is the label given to the particular kind of tactile exteroperception that involves a non-spatial input from muscles and tendons. When a hand-held object is wielded, hefted, carried and so on, the hand movements, together with the physical properties of the object, produce torques and angular motions that change in time with the movement. There is, however, an unchanging quantity that relates the variable torques and angular motions, namely, the object's inertia for rotation about a fixed point in the wrist. Our research revealed that the non-visual perception of the length of a wielded object by dynamic touch is a function of muscular sensitivity to the principal moments or eigenvalues of the inertia tensor.Across four experiments, variations in object length were accompanied by variations in width, spatial and material heterogeneity, the relation of the tensorial components to mass, and geometric shape. Subjects had no foreknowledge of the variations in object dimensions. Perceived lengths of occluded objects were reported by adjusting a visible marker so that its position corresponded to the position of the felt end of the object. In each experiment, perceived length was closely related to actual length and uniquely constrained by the major and minor eigenvalues of the inertia tensor.The present results, in conjunction with previous research, suggest that the inertia tensor provides the domains for two sets of functions realized by the “muscular sense” one consisting of the principal moments of inertia or eigenvalues, which map on to perceived object magnitudes (e.g. length, weight), and one consisting of the principal directions or eigenvectors, which map on to perceived relations between hand and object (e.g. position of grasp). The significance of information-perception specificity over cognitive mechanisms is underlined and perspectives on dynamic touch and its underlying muscular sensitivity, including a general tensorial analysis, are discussed.</div></front></TEI><istex><corpusName>elsevier</corpusName><author><json:item><name>P. 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Turvey</name><affiliations><json:string>Center for the Ecological Study of Perception and Action, University of Connecticut, Storrs, CT 06269-1020, U.S.A.</json:string></affiliations></json:item></author><subject><json:item><lang><json:string>eng</json:string></lang><value>a : tensor quantification of invariant pattern of afferentation</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>a : eigenvector of I</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>D : deformation tensor</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>I : inertia tensor</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>J : angular momentum vector</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>La : actual length</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>Lp : perceived length</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>MSE : mean square error</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>N : torque vector</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>O : center of rotation</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>V : ellipsoid volume</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>δijk : Kroenecker delta</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>λ : eigenvalue of I</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>ω : angular velocity</value></json:item></subject><articleId><json:string>9490264X</json:string></articleId><language><json:string>eng</json:string></language><abstract>Muscle spindles and Golgi tendon organs constitute the receptor foundation to the “muscle sense”. Muscle sensitivity has long been assumed relevant to the non-visual perception of the positions and motions of the body's segments and of the properties of hand-held objects. Dynamic touch is the label given to the particular kind of tactile exteroperception that involves a non-spatial input from muscles and tendons. When a hand-held object is wielded, hefted, carried and so on, the hand movements, together with the physical properties of the object, produce torques and angular motions that change in time with the movement. There is, however, an unchanging quantity that relates the variable torques and angular motions, namely, the object's inertia for rotation about a fixed point in the wrist. Our research revealed that the non-visual perception of the length of a wielded object by dynamic touch is a function of muscular sensitivity to the principal moments or eigenvalues of the inertia tensor.Across four experiments, variations in object length were accompanied by variations in width, spatial and material heterogeneity, the relation of the tensorial components to mass, and geometric shape. Subjects had no foreknowledge of the variations in object dimensions. Perceived lengths of occluded objects were reported by adjusting a visible marker so that its position corresponded to the position of the felt end of the object. In each experiment, perceived length was closely related to actual length and uniquely constrained by the major and minor eigenvalues of the inertia tensor.The present results, in conjunction with previous research, suggest that the inertia tensor provides the domains for two sets of functions realized by the “muscular sense” one consisting of the principal moments of inertia or eigenvalues, which map on to perceived object magnitudes (e.g. length, weight), and one consisting of the principal directions or eigenvectors, which map on to perceived relations between hand and object (e.g. position of grasp). 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Muscle sensitivity has long been assumed relevant to the non-visual perception of the positions and motions of the body's segments and of the properties of hand-held objects. Dynamic touch is the label given to the particular kind of tactile exteroperception that involves a non-spatial input from muscles and tendons. When a hand-held object is wielded, hefted, carried and so on, the hand movements, together with the physical properties of the object, produce torques and angular motions that change in time with the movement. There is, however, an unchanging quantity that relates the variable torques and angular motions, namely, the object's inertia for rotation about a fixed point in the wrist. Our research revealed that the non-visual perception of the length of a wielded object by dynamic touch is a function of muscular sensitivity to the principal moments or eigenvalues of the inertia tensor.Across four experiments, variations in object length were accompanied by variations in width, spatial and material heterogeneity, the relation of the tensorial components to mass, and geometric shape. Subjects had no foreknowledge of the variations in object dimensions. Perceived lengths of occluded objects were reported by adjusting a visible marker so that its position corresponded to the position of the felt end of the object. In each experiment, perceived length was closely related to actual length and uniquely constrained by the major and minor eigenvalues of the inertia tensor.The present results, in conjunction with previous research, suggest that the inertia tensor provides the domains for two sets of functions realized by the “muscular sense” one consisting of the principal moments of inertia or eigenvalues, which map on to perceived object magnitudes (e.g. length, weight), and one consisting of the principal directions or eigenvectors, which map on to perceived relations between hand and object (e.g. position of grasp). The significance of information-perception specificity over cognitive mechanisms is underlined and perspectives on dynamic touch and its underlying muscular sensitivity, including a general tensorial analysis, are discussed.</p></abstract><textClass xml:lang="en"><keywords scheme="keyword"><list><head>Abbreviations</head><item><term>a</term><term>tensor quantification of invariant pattern of afferentation</term></item><item><term>a</term><term>eigenvector of I</term></item><item><term>D</term><term>deformation tensor</term></item><item><term>I</term><term>inertia tensor</term></item><item><term>J</term><term>angular momentum vector</term></item><item><term>La</term><term>actual length</term></item><item><term>Lp</term><term>perceived length</term></item><item><term>MSE</term><term>mean square error</term></item><item><term>N</term><term>torque vector</term></item><item><term>O</term><term>center of rotation</term></item><item><term>V</term><term>ellipsoid volume</term></item><item><term>δijk</term><term>Kroenecker delta</term></item><item><term>λ</term><term>eigenvalue of I</term></item><item><term>ω</term><term>angular velocity</term></item></list></keywords></textClass></profileDesc><revisionDesc><change when="1993-10-27">Registration</change><change when="1993">Published</change></revisionDesc></teiHeader></istex:fulltextTEI></fulltext><metadata><istex:metadataXml wicri:clean="Elsevier doc found" wicri:toSee="Elsevier, no converted or simple article"><istex:xmlDeclaration>version="1.0" encoding="utf-8"</istex:xmlDeclaration><istex:docType PUBLIC="-//ES//DTD journal article DTD version 5.0.1//EN//XML" URI="art501.dtd" name="istex:docType"></istex:docType><istex:document><article version="5.0" xml:lang="en" docsubtype="fla"><item-info><jid>NSC</jid><aid>9490264X</aid><ce:pii>0306-4522(94)90264-X</ce:pii><ce:doi>10.1016/0306-4522(94)90264-X</ce:doi><ce:copyright type="unknown" year="1994">IBRO</ce:copyright></item-info><head><ce:title>Eigenvalues of the inertia tensor and exteroception by the “muscular sense”</ce:title><ce:author-group><ce:author><ce:given-name>P.</ce:given-name><ce:surname>Fitzpatrick</ce:surname></ce:author><ce:author><ce:given-name>C.</ce:given-name><ce:surname>Carello</ce:surname><ce:cross-ref refid="cor1"><ce:sup>*</ce:sup></ce:cross-ref></ce:author><ce:author><ce:given-name>M.T.</ce:given-name><ce:surname>Turvey</ce:surname></ce:author><ce:affiliation><ce:textfn>Center for the Ecological Study of Perception and Action, University of Connecticut, Storrs, CT 06269-1020, U.S.A.</ce:textfn></ce:affiliation><ce:correspondence id="cor1"><ce:label>*</ce:label><ce:text>To whom correspondence should be addressed.</ce:text></ce:correspondence></ce:author-group><ce:date-accepted day="27" month="10" year="1993"></ce:date-accepted><ce:abstract id="ab1" class="author" xml:lang="en"><ce:section-title>Abstract</ce:section-title><ce:abstract-sec><ce:simple-para>Muscle spindles and Golgi tendon organs constitute the receptor foundation to the “muscle sense”. Muscle sensitivity has long been assumed relevant to the non-visual perception of the positions and motions of the body's segments and of the properties of hand-held objects. Dynamic touch is the label given to the particular kind of tactile exteroperception that involves a non-spatial input from muscles and tendons. When a hand-held object is wielded, hefted, carried and so on, the hand movements, together with the physical properties of the object, produce torques and angular motions that change in time with the movement. There is, however, an unchanging quantity that relates the variable torques and angular motions, namely, the object's inertia for rotation about a fixed point in the wrist. Our research revealed that the non-visual perception of the length of a wielded object by dynamic touch is a function of muscular sensitivity to the principal moments or eigenvalues of the inertia tensor.</ce:simple-para><ce:simple-para>Across four experiments, variations in object length were accompanied by variations in width, spatial and material heterogeneity, the relation of the tensorial components to mass, and geometric shape. Subjects had no foreknowledge of the variations in object dimensions. Perceived lengths of occluded objects were reported by adjusting a visible marker so that its position corresponded to the position of the felt end of the object. In each experiment, perceived length was closely related to actual length and uniquely constrained by the major and minor eigenvalues of the inertia tensor.</ce:simple-para><ce:simple-para>The present results, in conjunction with previous research, suggest that the inertia tensor provides the domains for two sets of functions realized by the “muscular sense” one consisting of the principal moments of inertia or eigenvalues, which map on to perceived object magnitudes (e.g. length, weight), and one consisting of the principal directions or eigenvectors, which map on to perceived relations between hand and object (e.g. position of grasp). The significance of information-perception specificity over cognitive mechanisms is underlined and perspectives on dynamic touch and its underlying muscular sensitivity, including a general tensorial analysis, are discussed.</ce:simple-para></ce:abstract-sec></ce:abstract><ce:keywords class="abr" xml:lang="en"><ce:section-title>Abbreviations</ce:section-title><ce:keyword><ce:text><ce:bold>a</ce:bold></ce:text><ce:keyword><ce:text>tensor quantification of invariant pattern of afferentation</ce:text></ce:keyword></ce:keyword><ce:keyword><ce:text><ce:bold>a</ce:bold></ce:text><ce:keyword><ce:text>eigenvector of <ce:bold>I</ce:bold></ce:text></ce:keyword></ce:keyword><ce:keyword><ce:text><ce:bold>D</ce:bold></ce:text><ce:keyword><ce:text>deformation tensor</ce:text></ce:keyword></ce:keyword><ce:keyword><ce:text><ce:bold>I</ce:bold></ce:text><ce:keyword><ce:text>inertia tensor</ce:text></ce:keyword></ce:keyword><ce:keyword><ce:text><ce:bold>J</ce:bold></ce:text><ce:keyword><ce:text>angular momentum vector</ce:text></ce:keyword></ce:keyword><ce:keyword><ce:text><ce:italic>L</ce:italic><ce:inf>a</ce:inf></ce:text><ce:keyword><ce:text>actual length</ce:text></ce:keyword></ce:keyword><ce:keyword><ce:text><ce:italic>L</ce:italic><ce:inf>p</ce:inf></ce:text><ce:keyword><ce:text>perceived length</ce:text></ce:keyword></ce:keyword><ce:keyword><ce:text><ce:italic>MSE</ce:italic></ce:text><ce:keyword><ce:text>mean square error</ce:text></ce:keyword></ce:keyword><ce:keyword><ce:text>N</ce:text><ce:keyword><ce:text>torque vector</ce:text></ce:keyword></ce:keyword><ce:keyword><ce:text><ce:italic>O</ce:italic></ce:text><ce:keyword><ce:text>center of rotation</ce:text></ce:keyword></ce:keyword><ce:keyword><ce:text><ce:italic>V</ce:italic></ce:text><ce:keyword><ce:text>ellipsoid volume</ce:text></ce:keyword></ce:keyword><ce:keyword><ce:text>δ<ce:inf>ijk</ce:inf></ce:text><ce:keyword><ce:text>Kroenecker delta</ce:text></ce:keyword></ce:keyword><ce:keyword><ce:text>λ</ce:text><ce:keyword><ce:text>eigenvalue of <ce:bold>I</ce:bold></ce:text></ce:keyword></ce:keyword><ce:keyword><ce:text>ω</ce:text><ce:keyword><ce:text>angular velocity</ce:text></ce:keyword></ce:keyword></ce:keywords></head><tail><ce:bibliography><ce:section-title>References</ce:section-title><ce:bibliography-sec><ce:bib-reference id="bib1"><ce:label>1.</ce:label><sb:reference><sb:contribution><sb:authors><sb:author><ce:surname>Arbib</ce:surname><ce:given-name>M.</ce:given-name></sb:author><sb:author><ce:surname>Amari</ce:surname><ce:given-name>S.</ce:given-name></sb:author></sb:authors><sb:title><sb:maintitle>Sensorimotor transformations in the brain (with a critique of the tensor theory of cerebellum)</sb:maintitle></sb:title></sb:contribution><sb:host><sb:issue><sb:series><sb:title><sb:maintitle>J. theor. 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Psychol. hum. Percept. Perf.</sb:maintitle></sb:title><sb:volume-nr>3</sb:volume-nr></sb:series><sb:date>1992</sb:date></sb:issue><sb:pages><sb:first-page>714</sb:first-page><sb:last-page>727</sb:last-page></sb:pages></sb:host></sb:reference></ce:bib-reference></ce:bibliography-sec></ce:bibliography></tail></article></istex:document></istex:metadataXml><mods version="3.6"><titleInfo lang="en"><title>Eigenvalues of the inertia tensor and exteroception by the “muscular sense”</title></titleInfo><titleInfo type="alternative" lang="en" contentType="CDATA"><title>Eigenvalues of the inertia tensor and exteroception by the “muscular sense”</title></titleInfo><name type="personal"><namePart type="given">P.</namePart><namePart type="family">Fitzpatrick</namePart><affiliation>Center for the Ecological Study of Perception and Action, University of Connecticut, Storrs, CT 06269-1020, U.S.A.</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">C.</namePart><namePart type="family">Carello</namePart><affiliation>Center for the Ecological Study of Perception and Action, University of Connecticut, Storrs, CT 06269-1020, U.S.A.</affiliation><description>To whom correspondence should be addressed.</description><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">M.T.</namePart><namePart type="family">Turvey</namePart><affiliation>Center for the Ecological Study of Perception and Action, University of Connecticut, Storrs, CT 06269-1020, U.S.A.</affiliation><role><roleTerm type="text">author</roleTerm></role></name><typeOfResource>text</typeOfResource><genre type="research-article" displayLabel="Full-length article"></genre><originInfo><publisher>ELSEVIER</publisher><dateIssued encoding="w3cdtf">1993</dateIssued><dateValid encoding="w3cdtf">1993-10-27</dateValid><copyrightDate encoding="w3cdtf">1994</copyrightDate></originInfo><language><languageTerm type="code" authority="iso639-2b">eng</languageTerm><languageTerm type="code" authority="rfc3066">en</languageTerm></language><physicalDescription><internetMediaType>text/html</internetMediaType></physicalDescription><abstract lang="en">Muscle spindles and Golgi tendon organs constitute the receptor foundation to the “muscle sense”. Muscle sensitivity has long been assumed relevant to the non-visual perception of the positions and motions of the body's segments and of the properties of hand-held objects. Dynamic touch is the label given to the particular kind of tactile exteroperception that involves a non-spatial input from muscles and tendons. When a hand-held object is wielded, hefted, carried and so on, the hand movements, together with the physical properties of the object, produce torques and angular motions that change in time with the movement. There is, however, an unchanging quantity that relates the variable torques and angular motions, namely, the object's inertia for rotation about a fixed point in the wrist. Our research revealed that the non-visual perception of the length of a wielded object by dynamic touch is a function of muscular sensitivity to the principal moments or eigenvalues of the inertia tensor.Across four experiments, variations in object length were accompanied by variations in width, spatial and material heterogeneity, the relation of the tensorial components to mass, and geometric shape. Subjects had no foreknowledge of the variations in object dimensions. Perceived lengths of occluded objects were reported by adjusting a visible marker so that its position corresponded to the position of the felt end of the object. In each experiment, perceived length was closely related to actual length and uniquely constrained by the major and minor eigenvalues of the inertia tensor.The present results, in conjunction with previous research, suggest that the inertia tensor provides the domains for two sets of functions realized by the “muscular sense” one consisting of the principal moments of inertia or eigenvalues, which map on to perceived object magnitudes (e.g. length, weight), and one consisting of the principal directions or eigenvectors, which map on to perceived relations between hand and object (e.g. position of grasp). The significance of information-perception specificity over cognitive mechanisms is underlined and perspectives on dynamic touch and its underlying muscular sensitivity, including a general tensorial analysis, are discussed.</abstract><subject lang="en"><genre>Abbreviations</genre><topic>a : tensor quantification of invariant pattern of afferentation</topic><topic>a : eigenvector of I</topic><topic>D : deformation tensor</topic><topic>I : inertia tensor</topic><topic>J : angular momentum vector</topic><topic>La : actual length</topic><topic>Lp : perceived length</topic><topic>MSE : mean square error</topic><topic>N : torque vector</topic><topic>O : center of rotation</topic><topic>V : ellipsoid volume</topic><topic>δijk : Kroenecker delta</topic><topic>λ : eigenvalue of I</topic><topic>ω : angular velocity</topic></subject><relatedItem type="host"><titleInfo><title>Neuroscience</title></titleInfo><titleInfo type="abbreviated"><title>NSC</title></titleInfo><genre type="Journal">journal</genre><originInfo><dateIssued encoding="w3cdtf">199405</dateIssued></originInfo><identifier type="ISSN">0306-4522</identifier><identifier type="PII">S0306-4522(00)X0260-6</identifier><part><detail type="volume"><number>60</number><caption>vol.</caption></detail><detail type="issue"><number>2</number><caption>no.</caption></detail><extent unit="issue pages"><start>287</start><end>580</end></extent><extent unit="pages"><start>551</start><end>568</end></extent></part></relatedItem><identifier type="istex">F8F596298612791D9AD0736AC8FB3A66E1CA3903</identifier><identifier type="DOI">10.1016/0306-4522(94)90264-X</identifier><identifier type="PII">0306-4522(94)90264-X</identifier><identifier type="ArticleID">9490264X</identifier><accessCondition type="use and reproduction" contentType="">© 1994IBRO</accessCondition><recordInfo><recordContentSource>ELSEVIER</recordContentSource><recordOrigin>IBRO, ©1994</recordOrigin></recordInfo></mods></metadata><enrichments><istex:catWosTEI uri="https://api.istex.fr/document/F8F596298612791D9AD0736AC8FB3A66E1CA3903/enrichments/catWos"><teiHeader><profileDesc><textClass><classCode scheme="WOS">NEUROSCIENCES</classCode></textClass></profileDesc></teiHeader></istex:catWosTEI></enrichments></istex></record>Pour manipuler ce document sous Unix (Dilib)
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