How soft is that pillow? The perceptual localization of the hand and the haptic assessment of contact rigidity.
Identifieur interne : 000E82 ( PubMed/Corpus ); précédent : 000E81; suivant : 000E83How soft is that pillow? The perceptual localization of the hand and the haptic assessment of contact rigidity.
Auteurs : Assaf Pressman ; Amir Karniel ; Ferdinando A. Mussa-IvaldiSource :
- The Journal of neuroscience : the official journal of the Society for Neuroscience [ 1529-2401 ] ; 2011.
English descriptors
- KwdEn :
- Adult, Attention (physiology), Computer Simulation, Female, Hand (physiology), Humans, Illusions (physiology), Logistic Models, Male, Models, Psychological, Muscle Rigidity (physiopathology), Predictive Value of Tests, Probability, Psychometrics, Psychomotor Performance (physiology), Space Perception (physiology), Touch, Young Adult.
- MESH :
- physiology : Attention, Hand, Illusions, Psychomotor Performance, Space Perception.
- physiopathology : Muscle Rigidity.
- Adult, Computer Simulation, Female, Humans, Logistic Models, Male, Models, Psychological, Predictive Value of Tests, Probability, Psychometrics, Touch, Young Adult.
Abstract
A new haptic illusion is described, in which the location of the mobile object affects the perception of its rigidity. There is theoretical and experimental support for the notion that limb position sense results from the brain combining ongoing sensory information with expectations arising from prior experience. How does this probabilistic state information affect one's tactile perception of the environment mechanics? In a simple estimation process, human subjects were asked to report the relative rigidity of two simulated virtual objects. One of the objects remained fixed in space and had various coefficients of stiffness. The other virtual object had constant stiffness but moved with respect to the subjects. Earlier work suggested that the perception of an object's rigidity is consistent with a process of regression between the contact force and the perceived amount of penetration inside the object's boundary. The amount of penetration perceived by the subject was affected by varying the position of the object. This, in turn, had a predictable effect on the perceived rigidity of the contact. Subjects' reports on the relative rigidity of the object are best accounted for by a probabilistic model in which the perceived boundary of the object is estimated based on its current location and on past observations. Therefore, the perception of contact rigidity is accounted for by a stochastic process of state estimation underlying proprioceptive localization of the hand.
DOI: 10.1523/JNEUROSCI.4656-10.2011
PubMed: 21525300
Links to Exploration step
pubmed:21525300Le document en format XML
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The perceptual localization of the hand and the haptic assessment of contact rigidity.</title><author><name sortKey="Pressman, Assaf" sort="Pressman, Assaf" uniqKey="Pressman A" first="Assaf" last="Pressman">Assaf Pressman</name><affiliation><nlm:affiliation>Sensory Motor Performance Program, Rehabilitation Institute of Chicago, Chicago, Illinois 60611, USA. pressman@bgu.ac.il</nlm:affiliation></affiliation></author><author><name sortKey="Karniel, Amir" sort="Karniel, Amir" uniqKey="Karniel A" first="Amir" last="Karniel">Amir Karniel</name></author><author><name sortKey="Mussa Ivaldi, Ferdinando A" sort="Mussa Ivaldi, Ferdinando A" uniqKey="Mussa Ivaldi F" first="Ferdinando A" last="Mussa-Ivaldi">Ferdinando A. 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There is theoretical and experimental support for the notion that limb position sense results from the brain combining ongoing sensory information with expectations arising from prior experience. How does this probabilistic state information affect one's tactile perception of the environment mechanics? In a simple estimation process, human subjects were asked to report the relative rigidity of two simulated virtual objects. One of the objects remained fixed in space and had various coefficients of stiffness. The other virtual object had constant stiffness but moved with respect to the subjects. Earlier work suggested that the perception of an object's rigidity is consistent with a process of regression between the contact force and the perceived amount of penetration inside the object's boundary. The amount of penetration perceived by the subject was affected by varying the position of the object. This, in turn, had a predictable effect on the perceived rigidity of the contact. Subjects' reports on the relative rigidity of the object are best accounted for by a probabilistic model in which the perceived boundary of the object is estimated based on its current location and on past observations. Therefore, the perception of contact rigidity is accounted for by a stochastic process of state estimation underlying proprioceptive localization of the hand.</div></front></TEI><pubmed><MedlineCitation Owner="NLM" Status="MEDLINE"><PMID Version="1">21525300</PMID><DateCreated><Year>2011</Year><Month>04</Month><Day>28</Day></DateCreated><DateCompleted><Year>2011</Year><Month>06</Month><Day>24</Day></DateCompleted><DateRevised><Year>2015</Year><Month>02</Month><Day>04</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Electronic">1529-2401</ISSN><JournalIssue CitedMedium="Internet"><Volume>31</Volume><Issue>17</Issue><PubDate><Year>2011</Year><Month>Apr</Month><Day>27</Day></PubDate></JournalIssue><Title>The Journal of neuroscience : the official journal of the Society for Neuroscience</Title><ISOAbbreviation>J. Neurosci.</ISOAbbreviation></Journal><ArticleTitle>How soft is that pillow? The perceptual localization of the hand and the haptic assessment of contact rigidity.</ArticleTitle><Pagination><MedlinePgn>6595-604</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1523/JNEUROSCI.4656-10.2011</ELocationID><Abstract><AbstractText>A new haptic illusion is described, in which the location of the mobile object affects the perception of its rigidity. There is theoretical and experimental support for the notion that limb position sense results from the brain combining ongoing sensory information with expectations arising from prior experience. How does this probabilistic state information affect one's tactile perception of the environment mechanics? In a simple estimation process, human subjects were asked to report the relative rigidity of two simulated virtual objects. One of the objects remained fixed in space and had various coefficients of stiffness. The other virtual object had constant stiffness but moved with respect to the subjects. Earlier work suggested that the perception of an object's rigidity is consistent with a process of regression between the contact force and the perceived amount of penetration inside the object's boundary. The amount of penetration perceived by the subject was affected by varying the position of the object. This, in turn, had a predictable effect on the perceived rigidity of the contact. Subjects' reports on the relative rigidity of the object are best accounted for by a probabilistic model in which the perceived boundary of the object is estimated based on its current location and on past observations. Therefore, the perception of contact rigidity is accounted for by a stochastic process of state estimation underlying proprioceptive localization of the hand.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Pressman</LastName><ForeName>Assaf</ForeName><Initials>A</Initials><AffiliationInfo><Affiliation>Sensory Motor Performance Program, Rehabilitation Institute of Chicago, Chicago, Illinois 60611, USA. pressman@bgu.ac.il</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Karniel</LastName><ForeName>Amir</ForeName><Initials>A</Initials></Author><Author ValidYN="Y"><LastName>Mussa-Ivaldi</LastName><ForeName>Ferdinando A</ForeName><Initials>FA</Initials></Author></AuthorList><Language>eng</Language><GrantList CompleteYN="Y"><Grant><GrantID>2R01NS035673-10A2</GrantID><Acronym>NS</Acronym><Agency>NINDS NIH HHS</Agency><Country>United States</Country></Grant><Grant><GrantID>R01 NS035673</GrantID><Acronym>NS</Acronym><Agency>NINDS NIH 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