Deficits of temporal discrimination in dystonia are independent from the spatial distance between the loci of tactile stimulation
Identifieur interne : 001766 ( Istex/Corpus ); précédent : 001765; suivant : 001767Deficits of temporal discrimination in dystonia are independent from the spatial distance between the loci of tactile stimulation
Auteurs : Michele Tinazzi ; Antonio Fiaschi ; Emma Frasson ; Mirta Fiorio ; Feliciana Cortese ; Salvatore M. AgliotiSource :
- Movement Disorders [ 0885-3185 ] ; 2002-03.
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Abstract
To assess whether spatial variables influence deficits of temporal somesthetic discrimination in dystonic patients, 10 patients with idiopathic dystonia and 12 healthy controls were tested with pairs of non‐noxious electrical stimuli separated by different time intervals. Stimuli were delivered: (1) to the pad of the index finger (same‐point condition), (2) to the pad and to the base of the index finger (same‐finger condition), and (3) to the pad of the index and ring fingers (different‐finger condition). Subjects were asked to report whether they perceived single or double stimuli in the first condition and synchronous or asynchronous stimuli in the second and third conditions. Somesthetic temporal discrimination thresholds (STDTs) were obtained by computing the shortest time interval at which stimuli, applied to the left or the right hand, were perceived as separate in the first condition or asynchronous in the second and third conditions. STDTs were significantly higher in dystonic patients than controls in all three conditions. In both dystonia patients and controls, STDTs resulted highest in conditions whereby stimuli were maximally separated in space. Results extend current knowledge of deficits of somesthetic temporal discrimination in dystonia by showing that temporal deficits are not influenced by spatial variables. © 2002 Movement Disorder Society.
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DOI: 10.1002/mds.10019
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Lucia, Roma, Italy</unparsedAffiliation></affiliation></affiliationGroup><keywordGroup xml:lang="en" type="author"><keyword xml:id="kwd1">spatial–temporal processing</keyword><keyword xml:id="kwd2">sensory temporal discrimination threshold</keyword><keyword xml:id="kwd3">somatosensory system</keyword><keyword xml:id="kwd4">paired stimulation</keyword><keyword xml:id="kwd5">dystonia</keyword></keywordGroup><abstractGroup><abstract type="main" xml:lang="en"><title type="main">Abstract</title><p>To assess whether spatial variables influence deficits of temporal somesthetic discrimination in dystonic patients, 10 patients with idiopathic dystonia and 12 healthy controls were tested with pairs of non‐noxious electrical stimuli separated by different time intervals. Stimuli were delivered: (1) to the pad of the index finger (same‐point condition), (2) to the pad and to the base of the index finger (same‐finger condition), and (3) to the pad of the index and ring fingers (different‐finger condition). Subjects were asked to report whether they perceived single or double stimuli in the first condition and synchronous or asynchronous stimuli in the second and third conditions. Somesthetic temporal discrimination thresholds (STDTs) were obtained by computing the shortest time interval at which stimuli, applied to the left or the right hand, were perceived as separate in the first condition or asynchronous in the second and third conditions. STDTs were significantly higher in dystonic patients than controls in all three conditions. In both dystonia patients and controls, STDTs resulted highest in conditions whereby stimuli were maximally separated in space. Results extend current knowledge of deficits of somesthetic temporal discrimination in dystonia by showing that temporal deficits are not influenced by spatial variables. © 2002 Movement Disorder Society.</p></abstract></abstractGroup></contentMeta></header></component></istex:document></istex:metadataXml><!--Version 0.6 générée le 3-12-2015--><mods version="3.6"><titleInfo lang="en"><title>Deficits of temporal discrimination in dystonia are independent from the spatial distance between the loci of tactile stimulation</title></titleInfo><titleInfo type="abbreviated" lang="en"><title>Spatial Variables and Temporal Discrimination in Dystonia</title></titleInfo><titleInfo type="alternative" contentType="CDATA" lang="en"><title>Deficits of temporal discrimination in dystonia are independent from the spatial distance between the loci of tactile stimulation</title></titleInfo><name type="personal"><namePart type="given">Michele</namePart><namePart type="family">Tinazzi</namePart><namePart type="termsOfAddress">MD</namePart><affiliation>Dipartimento di Scienze Neurologiche e della Visione, Sez. di Neurologia Riabilitativa, Verona, Italy</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Antonio</namePart><namePart type="family">Fiaschi</namePart><namePart type="termsOfAddress">MD</namePart><affiliation>Dipartimento di Scienze Neurologiche e della Visione, Sez. di Neurologia Riabilitativa, Verona, Italy</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Emma</namePart><namePart type="family">Frasson</namePart><namePart type="termsOfAddress">MD</namePart><affiliation>Dipartimento di Scienze Neurologiche e della Visione, Sez. di Neurologia Riabilitativa, Verona, Italy</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Mirta</namePart><namePart type="family">Fiorio</namePart><namePart type="termsOfAddress">PhD</namePart><affiliation>Dipartimento di Scienze Neurologiche e della Visione, Sez. di Fisiologia Umana, Verona, Italy</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Feliciana</namePart><namePart type="family">Cortese</namePart><namePart type="termsOfAddress">MD</namePart><affiliation>Centro di Riabilitazione Funzionale, Zevio, Italy</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Salvatore M.</namePart><namePart type="family">Aglioti</namePart><namePart type="termsOfAddress">MD</namePart><affiliation>Dipartimento di Psicologia, Università di Roma La Sapienza, and IRCCS, Fondazione S. Lucia, Roma, Italy</affiliation><description>Correspondence: Dipartimento di Scienze Neurologiche e della Visione, Sezione di Fisiologia Umana, Università di Verona, Strada Le Grazie, 8 Italy</description><role><roleTerm type="text">author</roleTerm></role></name><typeOfResource>text</typeOfResource><genre authority="originalCategForm">article</genre><originInfo><publisher>Wiley Subscription Services, Inc., A Wiley Company</publisher><place><placeTerm type="text">New York</placeTerm></place><dateIssued encoding="w3cdtf">2002-03</dateIssued><dateCaptured encoding="w3cdtf">2001-04-30</dateCaptured><dateValid encoding="w3cdtf">2001-08-07</dateValid><copyrightDate encoding="w3cdtf">2002</copyrightDate></originInfo><language><languageTerm type="code" authority="rfc3066">en</languageTerm><languageTerm type="code" authority="iso639-2b">eng</languageTerm></language><physicalDescription><internetMediaType>text/html</internetMediaType><extent unit="figures">2</extent><extent unit="tables">1</extent><extent unit="references">32</extent><extent unit="words">3042</extent></physicalDescription><abstract lang="en">To assess whether spatial variables influence deficits of temporal somesthetic discrimination in dystonic patients, 10 patients with idiopathic dystonia and 12 healthy controls were tested with pairs of non‐noxious electrical stimuli separated by different time intervals. Stimuli were delivered: (1) to the pad of the index finger (same‐point condition), (2) to the pad and to the base of the index finger (same‐finger condition), and (3) to the pad of the index and ring fingers (different‐finger condition). Subjects were asked to report whether they perceived single or double stimuli in the first condition and synchronous or asynchronous stimuli in the second and third conditions. Somesthetic temporal discrimination thresholds (STDTs) were obtained by computing the shortest time interval at which stimuli, applied to the left or the right hand, were perceived as separate in the first condition or asynchronous in the second and third conditions. STDTs were significantly higher in dystonic patients than controls in all three conditions. In both dystonia patients and controls, STDTs resulted highest in conditions whereby stimuli were maximally separated in space. Results extend current knowledge of deficits of somesthetic temporal discrimination in dystonia by showing that temporal deficits are not influenced by spatial variables. © 2002 Movement Disorder Society.</abstract><subject lang="en"><genre>Keywords</genre><topic>spatial–temporal processing</topic><topic>sensory temporal discrimination threshold</topic><topic>somatosensory system</topic><topic>paired stimulation</topic><topic>dystonia</topic></subject><relatedItem type="host"><titleInfo><title>Movement Disorders</title><subTitle>Official Journal of the Movement Disorder Society</subTitle></titleInfo><titleInfo type="abbreviated"><title>Mov. Disord.</title></titleInfo><subject><genre>article category</genre><topic>Research Article</topic></subject><identifier type="ISSN">0885-3185</identifier><identifier type="eISSN">1531-8257</identifier><identifier type="DOI">10.1002/(ISSN)1531-8257</identifier><identifier type="PublisherID">MDS</identifier><part><date>2002</date><detail type="volume"><caption>vol.</caption><number>17</number></detail><detail type="issue"><caption>no.</caption><number>2</number></detail><extent unit="pages"><start>333</start><end>338</end><total>6</total></extent></part></relatedItem><identifier type="istex">6A5DBF889316AF546B3114BA2E7562ACC78683D6</identifier><identifier type="DOI">10.1002/mds.10019</identifier><identifier type="ArticleID">MDS10019</identifier><accessCondition type="use and reproduction" contentType="copyright">Copyright © 2002 Movement Disorders Society</accessCondition><recordInfo><recordOrigin>Wiley Subscription Services, Inc., A Wiley Company</recordOrigin><recordContentSource>WILEY</recordContentSource></recordInfo></mods></metadata><serie></serie></istex></record>Pour manipuler ce document sous Unix (Dilib)
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