The role of vision in detecting and correcting fingertip force errors during object lifting.
Identifieur interne : 002937 ( Main/Merge ); précédent : 002936; suivant : 002938The role of vision in detecting and correcting fingertip force errors during object lifting.
Auteurs : Gavin Buckingham [Canada] ; Nathalie S. Ranger ; Melvyn A. GoodaleSource :
- Journal of vision [ 1534-7362 ] ; 2011.
English descriptors
- KwdEn :
- 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
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pubmed:21205872Le document en format XML
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Ranger</name></author><author><name sortKey="Goodale, Melvyn A" sort="Goodale, Melvyn A" uniqKey="Goodale M" first="Melvyn A" last="Goodale">Melvyn A. Goodale</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2011">2011</date><idno type="doi">10.1167/11.1.4</idno><idno type="RBID">pubmed:21205872</idno><idno type="pmid">21205872</idno><idno type="wicri:Area/PubMed/Corpus">000F72</idno><idno type="wicri:Area/PubMed/Curation">000F72</idno><idno type="wicri:Area/PubMed/Checkpoint">000C42</idno><idno type="wicri:Area/Ncbi/Merge">001834</idno><idno type="wicri:Area/Ncbi/Curation">001834</idno><idno type="wicri:Area/Ncbi/Checkpoint">001834</idno><idno type="wicri:Area/Main/Merge">002937</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">The role of vision in detecting and correcting fingertip force errors during object lifting.</title><author><name sortKey="Buckingham, Gavin" sort="Buckingham, Gavin" uniqKey="Buckingham G" first="Gavin" last="Buckingham">Gavin Buckingham</name><affiliation wicri:level="1"><nlm:affiliation>Centre for Brain and Mind, Department of Psychology, University of Western Ontario, Canada. gbucking@uwo.ca</nlm:affiliation><country xml:lang="fr">Canada</country><wicri:regionArea>Centre for Brain and Mind, Department of Psychology, University of Western Ontario</wicri:regionArea><wicri:noRegion>University of Western Ontario</wicri:noRegion></affiliation></author><author><name sortKey="Ranger, Nathalie S" sort="Ranger, Nathalie S" uniqKey="Ranger N" first="Nathalie S" last="Ranger">Nathalie S. Ranger</name></author><author><name sortKey="Goodale, Melvyn A" sort="Goodale, Melvyn A" uniqKey="Goodale M" first="Melvyn A" last="Goodale">Melvyn A. Goodale</name></author></analytic><series><title level="j">Journal of vision</title><idno type="eISSN">1534-7362</idno><imprint><date when="2011" type="published">2011</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Adolescent</term><term>Adult</term><term>Cues</term><term>Female</term><term>Fingers (physiology)</term><term>Functional Laterality</term><term>Humans</term><term>Illusions (physiology)</term><term>Lifting</term><term>Male</term><term>Motion Perception (physiology)</term><term>Psychomotor Performance (physiology)</term><term>Young Adult</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Fingers</term><term>Illusions</term><term>Motion Perception</term><term>Psychomotor Performance</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Adolescent</term><term>Adult</term><term>Cues</term><term>Female</term><term>Functional Laterality</term><term>Humans</term><term>Lifting</term><term>Male</term><term>Young Adult</term></keywords></textClass></profileDesc></teiHeader><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></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
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