The impact of light fingertip touch on haptic cortical processing during a standing balance task.
Identifieur interne : 001A44 ( Ncbi/Merge ); précédent : 001A43; suivant : 001A45The impact of light fingertip touch on haptic cortical processing during a standing balance task.
Auteurs : David A E. Bolton [Canada] ; William E. Mcilroy ; W Richard Staines ; W. Richard StainesSource :
- Experimental brain research [ 1432-1106 ] ; 2011.
English descriptors
- KwdEn :
- MESH :
- methods : Electroencephalography, Electromyography.
- physiology : Evoked Potentials, Somatosensory, Fingers, Postural Balance, Psychomotor Performance, Sensory Deprivation, Touch.
- Adult, Humans, Young Adult.
Abstract
Availability of fingertip touch onto a stable surface reduces body sway for subjects standing with eyes closed. This is largely associated with sensory feedback from the fingertip when mechanical load is limited. Here, it is possible that the central nervous system facilitates cortical sensory processing to augment feedback to control upright stance. To test this, we compared cortical sensory excitability between tasks with and without light finger touch while standing. Subjects stood in tandem on a force plate with eyes closed while lightly touching a stable surface with the index finger. This was, in two different studies, compared to: (1) no haptic contact or (2) light touch on an object not referenced to balance. Throughout testing, the median nerve was stimulated and electroencephalography was used to measure somatosensory evoked potentials (SEPs). As expected, availability of stable light touch reduced medial-lateral COP sway. Peak amplitudes for SEP components revealed reduced P100 (48%), but increased P50 (31%), N140 (80%), and P200 (20%) during stable touch versus no touch. The modulation of P50 and N140 was no longer present when comparing stable to control (touch), which suggested that attending to touch on either surface, regardless of stability reference, accounted for these changes. Conversely, P200 was increased (19%) when touching the stable surface. Our data show SEP modulation during a standing balance task related to hand contact. Facilitation of P200 in particular may indicate task-specific regulation of the cortical representation of fingertip afferent input when it is relevant to providing stable cues for static balance control.
DOI: 10.1007/s00221-011-2728-6
PubMed: 21584624
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Mcilroy</name></author><author><name sortKey="Staines, W Richard" sort="Staines, W Richard" uniqKey="Staines W" first="W Richard" last="Staines">W Richard Staines</name></author><author><name sortKey="Richard Staines, W" sort="Richard Staines, W" uniqKey="Richard Staines W" first="W" last="Richard Staines">W. 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Bolton</name><affiliation wicri:level="1"><nlm:affiliation>Department of Kinesiology, University of Waterloo, 200 University Avenue W, Waterloo, ON N2L 3G1, Canada. dbolton@uwaterloo.ca</nlm:affiliation><country xml:lang="fr">Canada</country><wicri:regionArea>Department of Kinesiology, University of Waterloo, 200 University Avenue W, Waterloo, ON N2L 3G1</wicri:regionArea><wicri:noRegion>ON N2L 3G1</wicri:noRegion></affiliation></author><author><name sortKey="Mcilroy, William E" sort="Mcilroy, William E" uniqKey="Mcilroy W" first="William E" last="Mcilroy">William E. Mcilroy</name></author><author><name sortKey="Staines, W Richard" sort="Staines, W Richard" uniqKey="Staines W" first="W Richard" last="Staines">W Richard Staines</name></author><author><name sortKey="Richard Staines, W" sort="Richard Staines, W" uniqKey="Richard Staines W" first="W" last="Richard Staines">W. Richard Staines</name></author></analytic><series><title level="j">Experimental brain research</title><idno type="eISSN">1432-1106</idno><imprint><date when="2011" type="published">2011</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Adult</term><term>Electroencephalography (methods)</term><term>Electromyography (methods)</term><term>Evoked Potentials, Somatosensory (physiology)</term><term>Fingers (physiology)</term><term>Humans</term><term>Postural Balance (physiology)</term><term>Psychomotor Performance (physiology)</term><term>Sensory Deprivation (physiology)</term><term>Touch (physiology)</term><term>Young Adult</term></keywords><keywords scheme="MESH" qualifier="methods" xml:lang="en"><term>Electroencephalography</term><term>Electromyography</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Evoked Potentials, Somatosensory</term><term>Fingers</term><term>Postural Balance</term><term>Psychomotor Performance</term><term>Sensory Deprivation</term><term>Touch</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Adult</term><term>Humans</term><term>Young Adult</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Availability of fingertip touch onto a stable surface reduces body sway for subjects standing with eyes closed. This is largely associated with sensory feedback from the fingertip when mechanical load is limited. Here, it is possible that the central nervous system facilitates cortical sensory processing to augment feedback to control upright stance. To test this, we compared cortical sensory excitability between tasks with and without light finger touch while standing. Subjects stood in tandem on a force plate with eyes closed while lightly touching a stable surface with the index finger. This was, in two different studies, compared to: (1) no haptic contact or (2) light touch on an object not referenced to balance. Throughout testing, the median nerve was stimulated and electroencephalography was used to measure somatosensory evoked potentials (SEPs). As expected, availability of stable light touch reduced medial-lateral COP sway. Peak amplitudes for SEP components revealed reduced P100 (48%), but increased P50 (31%), N140 (80%), and P200 (20%) during stable touch versus no touch. The modulation of P50 and N140 was no longer present when comparing stable to control (touch), which suggested that attending to touch on either surface, regardless of stability reference, accounted for these changes. Conversely, P200 was increased (19%) when touching the stable surface. Our data show SEP modulation during a standing balance task related to hand contact. Facilitation of P200 in particular may indicate task-specific regulation of the cortical representation of fingertip afferent input when it is relevant to providing stable cues for static balance control.</div></front></TEI><pubmed><MedlineCitation Owner="NLM" Status="MEDLINE"><PMID Version="1">21584624</PMID><DateCreated><Year>2011</Year><Month>06</Month><Day>24</Day></DateCreated><DateCompleted><Year>2012</Year><Month>05</Month><Day>10</Day></DateCompleted><DateRevised><Year>2013</Year><Month>12</Month><Day>13</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1432-1106</ISSN><JournalIssue CitedMedium="Internet"><Volume>212</Volume><Issue>2</Issue><PubDate><Year>2011</Year><Month>Jul</Month></PubDate></JournalIssue><Title>Experimental brain research</Title><ISOAbbreviation>Exp Brain Res</ISOAbbreviation></Journal><ArticleTitle>The impact of light fingertip touch on haptic cortical processing during a standing balance task.</ArticleTitle><Pagination><MedlinePgn>279-91</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1007/s00221-011-2728-6</ELocationID><Abstract><AbstractText>Availability of fingertip touch onto a stable surface reduces body sway for subjects standing with eyes closed. This is largely associated with sensory feedback from the fingertip when mechanical load is limited. Here, it is possible that the central nervous system facilitates cortical sensory processing to augment feedback to control upright stance. To test this, we compared cortical sensory excitability between tasks with and without light finger touch while standing. Subjects stood in tandem on a force plate with eyes closed while lightly touching a stable surface with the index finger. This was, in two different studies, compared to: (1) no haptic contact or (2) light touch on an object not referenced to balance. Throughout testing, the median nerve was stimulated and electroencephalography was used to measure somatosensory evoked potentials (SEPs). As expected, availability of stable light touch reduced medial-lateral COP sway. Peak amplitudes for SEP components revealed reduced P100 (48%), but increased P50 (31%), N140 (80%), and P200 (20%) during stable touch versus no touch. The modulation of P50 and N140 was no longer present when comparing stable to control (touch), which suggested that attending to touch on either surface, regardless of stability reference, accounted for these changes. Conversely, P200 was increased (19%) when touching the stable surface. Our data show SEP modulation during a standing balance task related to hand contact. Facilitation of P200 in particular may indicate task-specific regulation of the cortical representation of fingertip afferent input when it is relevant to providing stable cues for static balance control.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Bolton</LastName><ForeName>David A E</ForeName><Initials>DA</Initials><AffiliationInfo><Affiliation>Department of Kinesiology, University of Waterloo, 200 University Avenue W, Waterloo, ON N2L 3G1, Canada. dbolton@uwaterloo.ca</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>McIlroy</LastName><ForeName>William E</ForeName><Initials>WE</Initials></Author><Author ValidYN="Y"><LastName>Staines</LastName><ForeName>W Richard</ForeName><Initials>WR</Initials></Author><Author ValidYN="N"><LastName>Richard Staines</LastName><ForeName>W</ForeName><Initials>W</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D003160">Comparative Study</PublicationType><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2011</Year><Month>05</Month><Day>17</Day></ArticleDate></Article><MedlineJournalInfo><Country>Germany</Country><MedlineTA>Exp Brain Res</MedlineTA><NlmUniqueID>0043312</NlmUniqueID><ISSNLinking>0014-4819</ISSNLinking></MedlineJournalInfo><CitationSubset>IM</CitationSubset><CommentsCorrectionsList><CommentsCorrections RefType="ErratumIn"><RefSource>Exp Brain Res. 2012 Apr;218(1):161</RefSource><Note>Richard Staines, W [corrected to Staines, W Richard]</Note></CommentsCorrections></CommentsCorrectionsList><MeshHeadingList><MeshHeading><DescriptorName MajorTopicYN="N" UI="D000328">Adult</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D004569">Electroencephalography</DescriptorName><QualifierName MajorTopicYN="N" UI="Q000379">methods</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D004576">Electromyography</DescriptorName><QualifierName MajorTopicYN="N" UI="Q000379">methods</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D005073">Evoked Potentials, Somatosensory</DescriptorName><QualifierName MajorTopicYN="Y" UI="Q000502">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D005385">Fingers</DescriptorName><QualifierName MajorTopicYN="Y" UI="Q000502">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D006801">Humans</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D004856">Postural Balance</DescriptorName><QualifierName MajorTopicYN="Y" UI="Q000502">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D011597">Psychomotor Performance</DescriptorName><QualifierName MajorTopicYN="Y" UI="Q000502">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D012683">Sensory Deprivation</DescriptorName><QualifierName MajorTopicYN="N" UI="Q000502">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D014110">Touch</DescriptorName><QualifierName MajorTopicYN="Y" UI="Q000502">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D055815">Young Adult</DescriptorName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2010</Year><Month>10</Month><Day>7</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2011</Year><Month>5</Month><Day>5</Day></PubMedPubDate><PubMedPubDate PubStatus="aheadofprint"><Year>2011</Year><Month>5</Month><Day>17</Day></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2011</Year><Month>5</Month><Day>18</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2011</Year><Month>5</Month><Day>18</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2012</Year><Month>5</Month><Day>11</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="doi">10.1007/s00221-011-2728-6</ArticleId><ArticleId IdType="pubmed">21584624</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Canada</li></country></list><tree><noCountry><name sortKey="Mcilroy, William E" sort="Mcilroy, William E" uniqKey="Mcilroy W" first="William E" last="Mcilroy">William E. Mcilroy</name><name sortKey="Richard Staines, W" sort="Richard Staines, W" uniqKey="Richard Staines W" first="W" last="Richard Staines">W. Richard Staines</name><name sortKey="Staines, W Richard" sort="Staines, W Richard" uniqKey="Staines W" first="W Richard" last="Staines">W Richard Staines</name></noCountry><country name="Canada"><noRegion><name sortKey="Bolton, David A E" sort="Bolton, David A E" uniqKey="Bolton D" first="David A E" last="Bolton">David A E. Bolton</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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