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Haptic recognition of dystonia and spasticity in simulated multi-joint hypertonia

Identifieur interne : 001226 ( Pmc/Checkpoint ); précédent : 001225; suivant : 001227

Haptic recognition of dystonia and spasticity in simulated multi-joint hypertonia

Auteurs : D. Piovesan ; A. Melendez-Calderon ; F. A. Mussa-Ivaldi

Source :

RBID : PMC:4497820

Abstract

This paper investigates the capability of naïve individuals to recognize dystonic- or spastic- like conditions through physical manipulation of a virtual arm. Subjects physically interact with a two-joint, six-muscle hypertonic arm model, rendered on a two degrees-of-freedom robotic manipulandum. Our results indicate that there are difficulties to discriminate between the two conditions at low to medium level of severity. We found that the sample entropy of the executed motion and the force experienced during physical manipulation, tended to be higher during incorrectly identified trials than in those correctly assessed.


Url:
DOI: 10.1109/ICORR.2013.6650449
PubMed: 24187266
PubMed Central: 4497820


Affiliations:


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PMC:4497820

Le document en format XML

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<name sortKey="Melendez Calderon, A" sort="Melendez Calderon, A" uniqKey="Melendez Calderon A" first="A." last="Melendez-Calderon">A. Melendez-Calderon</name>
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<name sortKey="Mussa Ivaldi, F A" sort="Mussa Ivaldi, F A" uniqKey="Mussa Ivaldi F" first="F. A." last="Mussa-Ivaldi">F. A. Mussa-Ivaldi</name>
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<p id="P2">This paper investigates the capability of naïve individuals to recognize dystonic- or spastic- like conditions through physical manipulation of a virtual arm. Subjects physically interact with a two-joint, six-muscle hypertonic arm model, rendered on a two degrees-of-freedom robotic manipulandum. Our results indicate that there are difficulties to discriminate between the two conditions at low to medium level of severity. We found that the sample entropy of the executed motion and the force experienced during physical manipulation, tended to be higher during incorrectly identified trials than in those correctly assessed.</p>
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<email>d-piovesan@northwestern.edu</email>
<xref ref-type="author-notes" rid="FN1">*</xref>
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<abstract>
<p id="P2">This paper investigates the capability of naïve individuals to recognize dystonic- or spastic- like conditions through physical manipulation of a virtual arm. Subjects physically interact with a two-joint, six-muscle hypertonic arm model, rendered on a two degrees-of-freedom robotic manipulandum. Our results indicate that there are difficulties to discriminate between the two conditions at low to medium level of severity. We found that the sample entropy of the executed motion and the force experienced during physical manipulation, tended to be higher during incorrectly identified trials than in those correctly assessed.</p>
</abstract>
<kwd-group>
<title>Index Terms</title>
<kwd>hypertonia</kwd>
<kwd>spasticity</kwd>
<kwd>rigidity</kwd>
<kwd>dystonia</kwd>
<kwd>assessment</kwd>
<kwd>haptic discrimination</kwd>
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