Discrimination thresholds for haptic perception of volume, surface area, and weight
Identifieur interne : 000382 ( PascalFrancis/Corpus ); précédent : 000381; suivant : 000383Discrimination thresholds for haptic perception of volume, surface area, and weight
Auteurs : Mirela Kahrimanovic ; Wouter M. Bergmann Tiest ; Astrid M. L. KappersSource :
- Attention, perception & psychophysics [ 1943-3921 ] ; 2011.
Descripteurs français
- Pascal (Inist)
English descriptors
- KwdEn :
Abstract
The present study investigated the human ability to discriminate the size of 3-D objects by touch. Experiment 1 measured the just noticeable differences (JNDs) for three tasks: (1) discrimination of volume without availability of weight information, (2) discrimination of volume with weight information available, and (3) discrimination of surface area. Stimuli consisted of spheres, cubes, and tetrahedrons. For all shapes, two reference sizes were used (3.5 and 12 cm3). No significant effect of task on the discriminability of objects was found, but the effects of shape and size were significant, as well as the interaction between these two factors. Post hoc analysis revealed that for the small reference, the Weber fractions for the tetrahedron were significantly larger than the fractions for the cube and the sphere. In Experiment 2, the JNDs for haptic perception of weight were measured for the same objects as those used in Experiment 1. The shape of objects had no significant effect on the Weber fractions for weight, but the Weber fractions for the small stimuli were larger than the fractions for the large stimuli. Surprisingly, a comparison between the two experiments showed that the Weber fractions for weight were significantly larger than the fractions for volume with availability of weight information. Taken together, the results reveal that volume and weight information are not effectively combined in discrimination tasks. This study provides detailed insight into the accuracy of the haptic system in discriminating objects' size. This substantial set of data satisfies the need for more fundamental knowledge on haptic size perception, necessary for a greater understanding of the perception of related properties, as well as of more general perceptual processes.
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| NO : | PASCAL 12-0040091 INIST |
|---|---|
| ET : | Discrimination thresholds for haptic perception of volume, surface area, and weight |
| AU : | KAHRIMANOVIC (Mirela); BERGMANN TIEST (Wouter M.); KAPPERS (Astrid M. L.) |
| AF : | Helmholtz Institute, Universiteit Utrecht, Padualaan 8/3584 CH Utrecht/Pays-Bas (1 aut., 2 aut., 3 aut.) |
| DT : | Publication en série; Niveau analytique |
| SO : | Attention, perception & psychophysics; ISSN 1943-3921; Etats-Unis; Da. 2011; Vol. 73; No. 8; Pp. 2649-2656; Bibl. 1/4 p. |
| LA : | Anglais |
| EA : | The present study investigated the human ability to discriminate the size of 3-D objects by touch. Experiment 1 measured the just noticeable differences (JNDs) for three tasks: (1) discrimination of volume without availability of weight information, (2) discrimination of volume with weight information available, and (3) discrimination of surface area. Stimuli consisted of spheres, cubes, and tetrahedrons. For all shapes, two reference sizes were used (3.5 and 12 cm3). No significant effect of task on the discriminability of objects was found, but the effects of shape and size were significant, as well as the interaction between these two factors. Post hoc analysis revealed that for the small reference, the Weber fractions for the tetrahedron were significantly larger than the fractions for the cube and the sphere. In Experiment 2, the JNDs for haptic perception of weight were measured for the same objects as those used in Experiment 1. The shape of objects had no significant effect on the Weber fractions for weight, but the Weber fractions for the small stimuli were larger than the fractions for the large stimuli. Surprisingly, a comparison between the two experiments showed that the Weber fractions for weight were significantly larger than the fractions for volume with availability of weight information. Taken together, the results reveal that volume and weight information are not effectively combined in discrimination tasks. This study provides detailed insight into the accuracy of the haptic system in discriminating objects' size. This substantial set of data satisfies the need for more fundamental knowledge on haptic size perception, necessary for a greater understanding of the perception of related properties, as well as of more general perceptual processes. |
| CC : | 002A26E05 |
| FD : | Seuil différentiel; Psychophysique; Sensibilité tactile; Surface; Poids; Perception espace; Etude expérimentale; Homme |
| FG : | Perception |
| ED : | Differential threshold; Psychophysics; Tactile sensitivity; Surface; Weight; Space perception; Experimental study; Human |
| EG : | Perception |
| SD : | Umbral diferencial; Psicofísica; Sensibilidad tactil; Superficie; Peso; Percepción espacio; Estudio experimental; Hombre |
| LO : | INIST-14257.354000506002540220 |
| ID : | 12-0040091 |
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Pascal:12-0040091Le document en format XML
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Bergmann Tiest</name><affiliation><inist:fA14 i1="01"><s1>Helmholtz Institute, Universiteit Utrecht, Padualaan 8</s1><s2>3584 CH Utrecht</s2><s3>NLD</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Kappers, Astrid M L" sort="Kappers, Astrid M L" uniqKey="Kappers A" first="Astrid M. L." last="Kappers">Astrid M. L. Kappers</name><affiliation><inist:fA14 i1="01"><s1>Helmholtz Institute, Universiteit Utrecht, Padualaan 8</s1><s2>3584 CH Utrecht</s2><s3>NLD</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">INIST</idno><idno type="inist">12-0040091</idno><date when="2011">2011</date><idno type="stanalyst">PASCAL 12-0040091 INIST</idno><idno type="RBID">Pascal:12-0040091</idno><idno type="wicri:Area/PascalFrancis/Corpus">000382</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Discrimination thresholds for haptic perception of volume, surface area, and weight</title><author><name sortKey="Kahrimanovic, Mirela" sort="Kahrimanovic, Mirela" uniqKey="Kahrimanovic M" first="Mirela" last="Kahrimanovic">Mirela Kahrimanovic</name><affiliation><inist:fA14 i1="01"><s1>Helmholtz Institute, Universiteit Utrecht, Padualaan 8</s1><s2>3584 CH Utrecht</s2><s3>NLD</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Bergmann Tiest, Wouter M" sort="Bergmann Tiest, Wouter M" uniqKey="Bergmann Tiest W" first="Wouter M." last="Bergmann Tiest">Wouter M. Bergmann Tiest</name><affiliation><inist:fA14 i1="01"><s1>Helmholtz Institute, Universiteit Utrecht, Padualaan 8</s1><s2>3584 CH Utrecht</s2><s3>NLD</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Kappers, Astrid M L" sort="Kappers, Astrid M L" uniqKey="Kappers A" first="Astrid M. L." last="Kappers">Astrid M. L. Kappers</name><affiliation><inist:fA14 i1="01"><s1>Helmholtz Institute, Universiteit Utrecht, Padualaan 8</s1><s2>3584 CH Utrecht</s2><s3>NLD</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14></affiliation></author></analytic><series><title level="j" type="main">Attention, perception & psychophysics</title><title level="j" type="abbreviated">Atten. percept. psychophys. </title><idno type="ISSN">1943-3921</idno><imprint><date when="2011">2011</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Attention, perception & psychophysics</title><title level="j" type="abbreviated">Atten. percept. psychophys. </title><idno type="ISSN">1943-3921</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Differential threshold</term><term>Experimental study</term><term>Human</term><term>Psychophysics</term><term>Space perception</term><term>Surface</term><term>Tactile sensitivity</term><term>Weight</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Seuil différentiel</term><term>Psychophysique</term><term>Sensibilité tactile</term><term>Surface</term><term>Poids</term><term>Perception espace</term><term>Etude expérimentale</term><term>Homme</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The present study investigated the human ability to discriminate the size of 3-D objects by touch. Experiment 1 measured the just noticeable differences (JNDs) for three tasks: (1) discrimination of volume without availability of weight information, (2) discrimination of volume with weight information available, and (3) discrimination of surface area. Stimuli consisted of spheres, cubes, and tetrahedrons. For all shapes, two reference sizes were used (3.5 and 12 cm<sup>3</sup>). No significant effect of task on the discriminability of objects was found, but the effects of shape and size were significant, as well as the interaction between these two factors. Post hoc analysis revealed that for the small reference, the Weber fractions for the tetrahedron were significantly larger than the fractions for the cube and the sphere. In Experiment 2, the JNDs for haptic perception of weight were measured for the same objects as those used in Experiment 1. The shape of objects had no significant effect on the Weber fractions for weight, but the Weber fractions for the small stimuli were larger than the fractions for the large stimuli. Surprisingly, a comparison between the two experiments showed that the Weber fractions for weight were significantly larger than the fractions for volume with availability of weight information. Taken together, the results reveal that volume and weight information are not effectively combined in discrimination tasks. This study provides detailed insight into the accuracy of the haptic system in discriminating objects' size. This substantial set of data satisfies the need for more fundamental knowledge on haptic size perception, necessary for a greater understanding of the perception of related properties, as well as of more general perceptual processes.</div></front></TEI><inist><standard h6="B"><pA><fA01 i1="01" i2="1"><s0>1943-3921</s0></fA01><fA03 i2="1"><s0>Atten. percept. psychophys. </s0></fA03><fA05><s2>73</s2></fA05><fA06><s2>8</s2></fA06><fA08 i1="01" i2="1" l="ENG"><s1>Discrimination thresholds for haptic perception of volume, surface area, and weight</s1></fA08><fA11 i1="01" i2="1"><s1>KAHRIMANOVIC (Mirela)</s1></fA11><fA11 i1="02" i2="1"><s1>BERGMANN TIEST (Wouter M.)</s1></fA11><fA11 i1="03" i2="1"><s1>KAPPERS (Astrid M. L.)</s1></fA11><fA14 i1="01"><s1>Helmholtz Institute, Universiteit Utrecht, Padualaan 8</s1><s2>3584 CH Utrecht</s2><s3>NLD</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ></fA14><fA20><s1>2649-2656</s1></fA20><fA21><s1>2011</s1></fA21><fA23 i1="01"><s0>ENG</s0></fA23><fA43 i1="01"><s1>INIST</s1><s2>14257</s2><s5>354000506002540220</s5></fA43><fA44><s0>0000</s0><s1>© 2012 INIST-CNRS. All rights reserved.</s1></fA44><fA45><s0>1/4 p.</s0></fA45><fA47 i1="01" i2="1"><s0>12-0040091</s0></fA47><fA60><s1>P</s1></fA60><fA61><s0>A</s0></fA61><fA64 i1="01" i2="1"><s0>Attention, perception & psychophysics</s0></fA64><fA66 i1="01"><s0>USA</s0></fA66><fC01 i1="01" l="ENG"><s0>The present study investigated the human ability to discriminate the size of 3-D objects by touch. 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The shape of objects had no significant effect on the Weber fractions for weight, but the Weber fractions for the small stimuli were larger than the fractions for the large stimuli. Surprisingly, a comparison between the two experiments showed that the Weber fractions for weight were significantly larger than the fractions for volume with availability of weight information. Taken together, the results reveal that volume and weight information are not effectively combined in discrimination tasks. This study provides detailed insight into the accuracy of the haptic system in discriminating objects' size. 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L.)</AU><AF>Helmholtz Institute, Universiteit Utrecht, Padualaan 8/3584 CH Utrecht/Pays-Bas (1 aut., 2 aut., 3 aut.)</AF><DT>Publication en série; Niveau analytique</DT><SO>Attention, perception & psychophysics; ISSN 1943-3921; Etats-Unis; Da. 2011; Vol. 73; No. 8; Pp. 2649-2656; Bibl. 1/4 p.</SO><LA>Anglais</LA><EA>The present study investigated the human ability to discriminate the size of 3-D objects by touch. Experiment 1 measured the just noticeable differences (JNDs) for three tasks: (1) discrimination of volume without availability of weight information, (2) discrimination of volume with weight information available, and (3) discrimination of surface area. Stimuli consisted of spheres, cubes, and tetrahedrons. For all shapes, two reference sizes were used (3.5 and 12 cm<sup>3</sup>). No significant effect of task on the discriminability of objects was found, but the effects of shape and size were significant, as well as the interaction between these two factors. Post hoc analysis revealed that for the small reference, the Weber fractions for the tetrahedron were significantly larger than the fractions for the cube and the sphere. In Experiment 2, the JNDs for haptic perception of weight were measured for the same objects as those used in Experiment 1. The shape of objects had no significant effect on the Weber fractions for weight, but the Weber fractions for the small stimuli were larger than the fractions for the large stimuli. Surprisingly, a comparison between the two experiments showed that the Weber fractions for weight were significantly larger than the fractions for volume with availability of weight information. Taken together, the results reveal that volume and weight information are not effectively combined in discrimination tasks. This study provides detailed insight into the accuracy of the haptic system in discriminating objects' size. This substantial set of data satisfies the need for more fundamental knowledge on haptic size perception, necessary for a greater understanding of the perception of related properties, as well as of more general perceptual processes.</EA><CC>002A26E05</CC><FD>Seuil différentiel; Psychophysique; Sensibilité tactile; Surface; Poids; Perception espace; Etude expérimentale; Homme</FD><FG>Perception</FG><ED>Differential threshold; Psychophysics; Tactile sensitivity; Surface; Weight; Space perception; Experimental study; Human</ED><EG>Perception</EG><SD>Umbral diferencial; Psicofísica; Sensibilidad tactil; Superficie; Peso; Percepción espacio; Estudio experimental; Hombre</SD><LO>INIST-14257.354000506002540220</LO><ID>12-0040091</ID></server></inist></record>Pour manipuler ce document sous Unix (Dilib)
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