The structure of frontoparallel haptic space is task dependent
Identifieur interne : 000B27 ( PascalFrancis/Corpus ); précédent : 000B26; suivant : 000B28The structure of frontoparallel haptic space is task dependent
Auteurs : Frouke Hermens ; Astrid M. L. Kappers ; Stan C. A. M. GielenSource :
- Perception & psychophysics [ 0031-5117 ] ; 2006.
Descripteurs français
- Pascal (Inist)
English descriptors
Abstract
In three experiments, we investigated the structure of frontoparallel haptic space. In the first experiment, we asked blindfolded participants to rotate a matching bar so that it felt parallel to the reference bar; the bars could be at various positions in the frontoparallel plane. Large systematic errors were observed, in which orientations that were perceived to be parallel were not physically parallel. In two subsequent experiments, we investigated the origin of these errors. In Experiment 2, we asked participants to verbally report the orientation of haptically presented bars. In this task, participants made errors that were considerably smaller than those made in Experiment 1. In Experiment 3, we asked participants to set bars in a verbally instructed orientation, and they also made errors significantly smaller than those observed in Experiment 1. The data suggest that the errors in the matching task originate from the transfer of the reference orientation to the matching-bar position.
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NO : | PASCAL 07-0382957 INIST |
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ET : | The structure of frontoparallel haptic space is task dependent |
AU : | HERMENS (Frouke); KAPPERS (Astrid M. L.); GIELEN (Stan C. A. M.) |
AF : | Radboud University Nijmegen/Nijmegen/Pays-Bas (1 aut., 3 aut.); Helmholtz Institute, Utrecht University/Utrecht/Pays-Bas (2 aut.) |
DT : | Publication en série; Niveau analytique |
SO : | Perception & psychophysics; ISSN 0031-5117; Coden PEPSBJ; Etats-Unis; Da. 2006; Vol. 68; No. 1; Pp. 62-75; Bibl. 1/2 p. |
LA : | Anglais |
EA : | In three experiments, we investigated the structure of frontoparallel haptic space. In the first experiment, we asked blindfolded participants to rotate a matching bar so that it felt parallel to the reference bar; the bars could be at various positions in the frontoparallel plane. Large systematic errors were observed, in which orientations that were perceived to be parallel were not physically parallel. In two subsequent experiments, we investigated the origin of these errors. In Experiment 2, we asked participants to verbally report the orientation of haptically presented bars. In this task, participants made errors that were considerably smaller than those made in Experiment 1. In Experiment 3, we asked participants to set bars in a verbally instructed orientation, and they also made errors significantly smaller than those observed in Experiment 1. The data suggest that the errors in the matching task originate from the transfer of the reference orientation to the matching-bar position. |
CC : | 002A26E05 |
FD : | Sensibilité tactile; Etude expérimentale; Perception espace; Cognition; Homme |
ED : | Tactile sensitivity; Experimental study; Space perception; Cognition; Human |
SD : | Sensibilidad tactil; Estudio experimental; Percepción espacio; Cognición; Hombre |
LO : | INIST-14257.354000145599350060 |
ID : | 07-0382957 |
Links to Exploration step
Pascal:07-0382957Le document en format XML
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<front><div type="abstract" xml:lang="en">In three experiments, we investigated the structure of frontoparallel haptic space. In the first experiment, we asked blindfolded participants to rotate a matching bar so that it felt parallel to the reference bar; the bars could be at various positions in the frontoparallel plane. Large systematic errors were observed, in which orientations that were perceived to be parallel were not physically parallel. In two subsequent experiments, we investigated the origin of these errors. In Experiment 2, we asked participants to verbally report the orientation of haptically presented bars. In this task, participants made errors that were considerably smaller than those made in Experiment 1. In Experiment 3, we asked participants to set bars in a verbally instructed orientation, and they also made errors significantly smaller than those observed in Experiment 1. The data suggest that the errors in the matching task originate from the transfer of the reference orientation to the matching-bar position.</div>
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