The Perceptual Experience of Slope by Foot and by Finger
Identifieur interne : 003289 ( Main/Exploration ); précédent : 003288; suivant : 003290The Perceptual Experience of Slope by Foot and by Finger
Auteurs : Alen Hajnal [États-Unis] ; Daniel T. Abdul-Malak [États-Unis] ; Frank H. Durgin [États-Unis]Source :
- Journal of experimental psychology. Human perception and performance [ 0096-1523 ] ; 2011.
Descripteurs français
- Pascal (Inist)
English descriptors
Abstract
Historically, the bodily senses have often been regarded as impeccable sources of spatial information and as being the teacher of vision. Here, the authors report that the haptic perception of slope by means of the foot is greatly exaggerated. The exaggeration is present in verbal as well as proprioceptive judgments. It is shown that this misperception of pedal slope is not caused by calibration to the well-established visual misperception of slope because it is present in congenitally blind individuals as well. The pedal misperception of slope is contrasted with the perception of slope by dynamic touch with a finger in a force-feedback device. Although slopes feel slightly exaggerated even when explored by finger, they tend to show much less exaggeration than when equivalent slopes are stood on. The results are discussed in terms of a theory of coding efficiency.
Affiliations:
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Le document en format XML
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Hum. percept. perform.</title><idno type="ISSN">0096-1523</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Experimental study</term><term>Proprioception</term><term>Slope</term><term>Space perception</term><term>Tactile sensitivity</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Perception espace</term><term>Pente</term><term>Sensibilité tactile</term><term>Proprioception</term><term>Etude expérimentale</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Historically, the bodily senses have often been regarded as impeccable sources of spatial information and as being the teacher of vision. Here, the authors report that the haptic perception of slope by means of the foot is greatly exaggerated. The exaggeration is present in verbal as well as proprioceptive judgments. It is shown that this misperception of pedal slope is not caused by calibration to the well-established visual misperception of slope because it is present in congenitally blind individuals as well. The pedal misperception of slope is contrasted with the perception of slope by dynamic touch with a finger in a force-feedback device. Although slopes feel slightly exaggerated even when explored by finger, they tend to show much less exaggeration than when equivalent slopes are stood on. The results are discussed in terms of a theory of coding efficiency.</div></front></TEI><affiliations><list><country><li>États-Unis</li></country></list><tree><country name="États-Unis"><noRegion><name sortKey="Hajnal, Alen" sort="Hajnal, Alen" uniqKey="Hajnal A" first="Alen" last="Hajnal">Alen Hajnal</name></noRegion><name sortKey="Abdul Malak, Daniel T" sort="Abdul Malak, Daniel T" uniqKey="Abdul Malak D" first="Daniel T." last="Abdul-Malak">Daniel T. 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