Large systematic deviations in a bimanual parallelity task: further analysis of contributing factors
Identifieur interne : 006F99 ( Main/Exploration ); précédent : 006F98; suivant : 007000Large systematic deviations in a bimanual parallelity task: further analysis of contributing factors
Auteurs : Astrid M. L. Kappers [Pays-Bas]Source :
- Acta psychologica [ 0001-6918 ] ; 2003.
Descripteurs français
- Pascal (Inist)
- Wicri :
- topic : Expérience professionnelle, Homme.
English descriptors
- KwdEn :
- Adolescent, Adult, Age Distribution, Bimanual activity, Body Weights and Measures, Cognition, Education level, Experimental study, Female, Frame of reference, Functional Laterality (physiology), Human, Humans, Interindividual comparison, Male, Middle Aged, Obliqueness, Orientation (physiology), Perception, Professional experience, Sex, Space Perception (physiology), Space perception, Tactile sensitivity, Task Performance and Analysis, Touch (physiology).
- MESH :
Abstract
Previous studies showed that what subjects haptically perceive as parallel deviates largely from what is actually physically parallel [Perception 28 (1999) 1001; Acta Psychol. 109 (2002) 25; Perception 28 (1999) 781]. It also turned out that the deviations were strongly subject-dependent. It was hypothesized that what is haptically parallel is decided in a frame of reference intermediate to an allocentric and an egocentric one. The purposes of the present study were to collect more evidence for this hypothesis and to investigate the factor(s) that determines the specific weighting between the two reference frames. We found a highly significant reversal of a haptic oblique effect (in this context; larger systematic deviations for oblique orientations) for subjects with large deviations. This reversal provides convincing evidence that an intermediate frame of reference is used for the decision of haptic parallelity. Contrary to common expectation, several factors that might have been of influence on the weighting of the two frames of reference, such as arm length, arm span, shoulder width, turned out to be irrelevant. Surprisingly, the only factors that seem to be of influence are gender and job experience or education.
Affiliations:
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Le document en format XML
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<term>Education level</term>
<term>Experimental study</term>
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<term>Functional Laterality (physiology)</term>
<term>Human</term>
<term>Humans</term>
<term>Interindividual comparison</term>
<term>Male</term>
<term>Middle Aged</term>
<term>Obliqueness</term>
<term>Orientation (physiology)</term>
<term>Perception</term>
<term>Professional experience</term>
<term>Sex</term>
<term>Space Perception (physiology)</term>
<term>Space perception</term>
<term>Tactile sensitivity</term>
<term>Task Performance and Analysis</term>
<term>Touch (physiology)</term>
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<term>Orientation</term>
<term>Space Perception</term>
<term>Touch</term>
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<term>Age Distribution</term>
<term>Body Weights and Measures</term>
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<term>Humans</term>
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<term>Middle Aged</term>
<term>Task Performance and Analysis</term>
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<keywords scheme="Pascal" xml:lang="fr"><term>Etude expérimentale</term>
<term>Activité bimanuelle</term>
<term>Sensibilité tactile</term>
<term>Perception espace</term>
<term>Obliquité</term>
<term>Sexe</term>
<term>Expérience professionnelle</term>
<term>Niveau étude</term>
<term>Comparaison interindividuelle</term>
<term>Perception</term>
<term>Cognition</term>
<term>Homme</term>
<term>Cadre référence</term>
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<front><div type="abstract" xml:lang="en">Previous studies showed that what subjects haptically perceive as parallel deviates largely from what is actually physically parallel [Perception 28 (1999) 1001; Acta Psychol. 109 (2002) 25; Perception 28 (1999) 781]. It also turned out that the deviations were strongly subject-dependent. It was hypothesized that what is haptically parallel is decided in a frame of reference intermediate to an allocentric and an egocentric one. The purposes of the present study were to collect more evidence for this hypothesis and to investigate the factor(s) that determines the specific weighting between the two reference frames. We found a highly significant reversal of a haptic oblique effect (in this context; larger systematic deviations for oblique orientations) for subjects with large deviations. This reversal provides convincing evidence that an intermediate frame of reference is used for the decision of haptic parallelity. Contrary to common expectation, several factors that might have been of influence on the weighting of the two frames of reference, such as arm length, arm span, shoulder width, turned out to be irrelevant. Surprisingly, the only factors that seem to be of influence are gender and job experience or education.</div>
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