HapticV1, PubMed, Corpus, bibRecord, 000F72

The role of vision in detecting and correcting fingertip force errors during object lifting.

Identifieur interne : 000F72 ( PubMed/Corpus ); précédent : 000F71; suivant : 000F73

The role of vision in detecting and correcting fingertip force errors during object lifting.

Auteurs : Gavin Buckingham ; Nathalie S. Ranger ; Melvyn A. Goodale

Source :

Journal of vision [ 1534-7362 ] ; 2011.

RBID : pubmed:21205872

English descriptors

KwdEn :
- Adolescent, Adult, Cues, Female, Fingers (physiology), Functional Laterality, Humans, Illusions (physiology), Lifting, Male, Motion Perception (physiology), Psychomotor Performance (physiology), Young Adult.
MESH :
- physiology : Fingers, Illusions, Motion Perception, Psychomotor Performance.
- Adolescent, Adult, Cues, Female, Functional Laterality, Humans, Lifting, Male, Young Adult.

Abstract

Vision provides many reliable cues about the likely weight of an object, allowing individuals to predict how heavy it will be. The forces used to lift an object for the first time reflect these predictions. This, however, leads to inevitable errors during lifts of objects that weigh unexpected amounts. Fortunately, these errors are rarely made twice in a row-lifters have the impressive ability to detect and correct large or small misapplications of fingertip forces, even while experiencing weight illusions. Although it has been assumed that we detect and correct these errors exclusively with our sense of touch, recent evidence has demonstrated a role for vision in this fingertip force scaling. Here, we demonstrate that even when stimulus set size, delay, and modality are controlled for, individuals are unable to skillfully scale their grip and load force rates over repeated lifts without vision. However, eliminating only the task-relevant visual information, while maintaining the rest of the visual world, shifts participants back into the normal, skilled mode of control. These findings clarify the role of visual information in the ostensibly haptic task of lifting objects, suggesting individuals use priors under conditions where uncertainty is high.

DOI: 10.1167/11.1.4
PubMed: 21205872

Links to Exploration step

pubmed:21205872

Le document en format XML

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<author><name sortKey="Buckingham, Gavin" sort="Buckingham, Gavin" uniqKey="Buckingham G" first="Gavin" last="Buckingham">Gavin Buckingham</name>
<affiliation><nlm:affiliation>Centre for Brain and Mind, Department of Psychology, University of Western Ontario, Canada. gbucking@uwo.ca</nlm:affiliation>
</affiliation>
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<author><name sortKey="Ranger, Nathalie S" sort="Ranger, Nathalie S" uniqKey="Ranger N" first="Nathalie S" last="Ranger">Nathalie S. Ranger</name>
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<author><name sortKey="Goodale, Melvyn A" sort="Goodale, Melvyn A" uniqKey="Goodale M" first="Melvyn A" last="Goodale">Melvyn A. Goodale</name>
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<front><div type="abstract" xml:lang="en">Vision provides many reliable cues about the likely weight of an object, allowing individuals to predict how heavy it will be. The forces used to lift an object for the first time reflect these predictions. This, however, leads to inevitable errors during lifts of objects that weigh unexpected amounts. Fortunately, these errors are rarely made twice in a row-lifters have the impressive ability to detect and correct large or small misapplications of fingertip forces, even while experiencing weight illusions. Although it has been assumed that we detect and correct these errors exclusively with our sense of touch, recent evidence has demonstrated a role for vision in this fingertip force scaling. Here, we demonstrate that even when stimulus set size, delay, and modality are controlled for, individuals are unable to skillfully scale their grip and load force rates over repeated lifts without vision. However, eliminating only the task-relevant visual information, while maintaining the rest of the visual world, shifts participants back into the normal, skilled mode of control. These findings clarify the role of visual information in the ostensibly haptic task of lifting objects, suggesting individuals use priors under conditions where uncertainty is high.</div>
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<Abstract><AbstractText>Vision provides many reliable cues about the likely weight of an object, allowing individuals to predict how heavy it will be. The forces used to lift an object for the first time reflect these predictions. This, however, leads to inevitable errors during lifts of objects that weigh unexpected amounts. Fortunately, these errors are rarely made twice in a row-lifters have the impressive ability to detect and correct large or small misapplications of fingertip forces, even while experiencing weight illusions. Although it has been assumed that we detect and correct these errors exclusively with our sense of touch, recent evidence has demonstrated a role for vision in this fingertip force scaling. Here, we demonstrate that even when stimulus set size, delay, and modality are controlled for, individuals are unable to skillfully scale their grip and load force rates over repeated lifts without vision. However, eliminating only the task-relevant visual information, while maintaining the rest of the visual world, shifts participants back into the normal, skilled mode of control. These findings clarify the role of visual information in the ostensibly haptic task of lifting objects, suggesting individuals use priors under conditions where uncertainty is high.</AbstractText>
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The role of vision in detecting and correcting fingertip force errors during object lifting.

The role of vision in detecting and correcting fingertip force errors during object lifting.

Source :

English descriptors

Abstract

Links to Exploration step

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri

Pour générer des pages wiki