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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Attention to painful cutaneous laser stimuli evokes directed functional interactions between human sensory and modulatory pain-related cortical areas</title><author><name sortKey="Liu, C C" sort="Liu, C C" uniqKey="Liu C" first="C. C." last="Liu">C. C. Liu</name><affiliation><nlm:aff id="A1">Department of Neurosurgery, Johns Hopkins University, Baltimore, USA</nlm:aff></affiliation></author><author><name sortKey="Ohara, S" sort="Ohara, S" uniqKey="Ohara S" first="S." last="Ohara">S. Ohara</name><affiliation><nlm:aff id="A1">Department of Neurosurgery, Johns Hopkins University, Baltimore, USA</nlm:aff></affiliation></author><author><name sortKey="Franaszczuk, P J" sort="Franaszczuk, P J" uniqKey="Franaszczuk P" first="P. J." last="Franaszczuk">P. J. Franaszczuk</name><affiliation><nlm:aff id="A2">Department of Neurology, Johns Hopkins University, Baltimore, USA</nlm:aff></affiliation></author><author><name sortKey="Crone, N E" sort="Crone, N E" uniqKey="Crone N" first="N. E." last="Crone">N. E. Crone</name><affiliation><nlm:aff id="A2">Department of Neurology, Johns Hopkins University, Baltimore, USA</nlm:aff></affiliation></author><author><name sortKey="Lenz, F A" sort="Lenz, F A" uniqKey="Lenz F" first="F. A." last="Lenz">F. A. Lenz</name><affiliation><nlm:aff id="A1">Department of Neurosurgery, Johns Hopkins University, Baltimore, USA</nlm:aff></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">22033363</idno><idno type="pmc">3433227</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3433227</idno><idno type="RBID">PMC:3433227</idno><idno type="doi">10.1016/j.pain.2011.09.002</idno><date when="2011">2011</date><idno type="wicri:Area/Pmc/Corpus">000324</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Corpus" wicri:corpus="PMC">000324</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Attention to painful cutaneous laser stimuli evokes directed functional interactions between human sensory and modulatory pain-related cortical areas</title><author><name sortKey="Liu, C C" sort="Liu, C C" uniqKey="Liu C" first="C. C." last="Liu">C. C. Liu</name><affiliation><nlm:aff id="A1">Department of Neurosurgery, Johns Hopkins University, Baltimore, USA</nlm:aff></affiliation></author><author><name sortKey="Ohara, S" sort="Ohara, S" uniqKey="Ohara S" first="S." last="Ohara">S. Ohara</name><affiliation><nlm:aff id="A1">Department of Neurosurgery, Johns Hopkins University, Baltimore, USA</nlm:aff></affiliation></author><author><name sortKey="Franaszczuk, P J" sort="Franaszczuk, P J" uniqKey="Franaszczuk P" first="P. J." last="Franaszczuk">P. J. Franaszczuk</name><affiliation><nlm:aff id="A2">Department of Neurology, Johns Hopkins University, Baltimore, USA</nlm:aff></affiliation></author><author><name sortKey="Crone, N E" sort="Crone, N E" uniqKey="Crone N" first="N. E." last="Crone">N. E. Crone</name><affiliation><nlm:aff id="A2">Department of Neurology, Johns Hopkins University, Baltimore, USA</nlm:aff></affiliation></author><author><name sortKey="Lenz, F A" sort="Lenz, F A" uniqKey="Lenz F" first="F. A." last="Lenz">F. A. Lenz</name><affiliation><nlm:aff id="A1">Department of Neurosurgery, Johns Hopkins University, Baltimore, USA</nlm:aff></affiliation></author></analytic><series><title level="j">Pain</title><idno type="ISSN">0304-3959</idno><idno type="eISSN">1872-6623</idno><imprint><date when="2011">2011</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><p id="P2">The human ‘pain network’ includes cortical areas which are activated during the response to painful stimuli (termed category 1), or during psychological processes which modulate pain, e.g. distraction (termed category 2). These categories include parts of the parasylvian (PS), medial frontal (MF), and paracentral cortex (S1&M1). We now propose to test the hypothesis that causal interactions both within and between category 1 and category 2 modules occur during attention to a painful stimulus. Event-related causality (ERC) was calculated from local field potentials (LFP) recorded directly from these cortical areas during the response to a painful cutaneous laser stimulus in patients being monitored for epilepsy.</p><p id="P3">The number of electrodes involved in pairs with significant ERC in category 1 was greater for pre-stimulus versus post-stimulus and for attention versus distraction. This is consistent with our prior evidence that the category 1 ‘pain network’ changes rapidly with time intervals and tasks. In contrast, the interaction <underline>between</underline> categories was often unchanged or stable across intervals and tasks, particularly in MF.</p><p id="P4">The proportion of contacts involved in interactions with PS was greater during distraction versus attention while activation was less, which suggests that distraction involves an inhibitory process in PS. Functional interactions between categories were overwhelmingly in the direction from category 2 > 1, particularly for contacts in MF which often had a driver role. These results demonstrate that MF is densely interconnected throughout the ‘pain network’ so that stimulation of MF might be used to disrupt the ‘pain network’ as a therapy for pain.</p></div></front></TEI><pmc article-type="research-article"><pmc-comment>The publisher of this article does not allow downloading of the full text in XML form.</pmc-comment>
<pmc-dir>properties manuscript</pmc-dir>
<front><journal-meta><journal-id journal-id-type="nlm-journal-id">7508686</journal-id><journal-id journal-id-type="pubmed-jr-id">6347</journal-id><journal-id journal-id-type="nlm-ta">Pain</journal-id><journal-id journal-id-type="iso-abbrev">Pain</journal-id><journal-title-group><journal-title>Pain</journal-title></journal-title-group><issn pub-type="ppub">0304-3959</issn><issn pub-type="epub">1872-6623</issn></journal-meta><article-meta><article-id pub-id-type="pmid">22033363</article-id><article-id pub-id-type="pmc">3433227</article-id><article-id pub-id-type="doi">10.1016/j.pain.2011.09.002</article-id><article-id pub-id-type="manuscript">NIHMS334808</article-id><article-categories><subj-group subj-group-type="heading"><subject>Article</subject></subj-group></article-categories><title-group><article-title>Attention to painful cutaneous laser stimuli evokes directed functional interactions between human sensory and modulatory pain-related cortical areas</article-title></title-group><contrib-group><contrib contrib-type="author"><name><surname>Liu</surname><given-names>C.C.</given-names></name><xref ref-type="aff" rid="A1">a</xref></contrib><contrib contrib-type="author"><name><surname>Ohara</surname><given-names>S.</given-names></name><xref ref-type="aff" rid="A1">a</xref></contrib><contrib contrib-type="author"><name><surname>Franaszczuk</surname><given-names>P.J.</given-names></name><xref ref-type="aff" rid="A2">b</xref></contrib><contrib contrib-type="author"><name><surname>Crone</surname><given-names>N.E.</given-names></name><xref ref-type="aff" rid="A2">b</xref></contrib><contrib contrib-type="author"><name><surname>Lenz</surname><given-names>F.A.</given-names></name><xref ref-type="aff" rid="A1">a</xref></contrib></contrib-group><aff id="A1"><label>a</label>Department of Neurosurgery, Johns Hopkins University, Baltimore, USA</aff><aff id="A2"><label>b</label>Department of Neurology, Johns Hopkins University, Baltimore, USA</aff><author-notes><corresp id="FN1">Address all correspondence and proofs to: Fred A. Lenz, Department of Neurosurgery, Johns Hopkins Hospital, Meyer Building 8-181, 600 North Wolfe Street, Baltimore, Maryland, USA. 21287-7713, Telephone - 410-955-2257, FAX - 410-287-4480, <email>flenz1@jhmi.edu</email></corresp></author-notes><pub-date pub-type="nihms-submitted"><day>25</day><month>7</month><year>2012</year></pub-date><pub-date pub-type="epub"><day>26</day><month>10</month><year>2011</year></pub-date><pub-date pub-type="ppub"><month>12</month><year>2011</year></pub-date><pub-date pub-type="pmc-release"><day>01</day><month>12</month><year>2012</year></pub-date><volume>152</volume><issue>12</issue><fpage>2781</fpage><lpage>2791</lpage><permissions><copyright-statement>© 2011 International Association for the Study of Pain. Published by Elsevier B.V. All rights reserved.</copyright-statement><copyright-year>2011</copyright-year></permissions><abstract><p id="P2">The human ‘pain network’ includes cortical areas which are activated during the response to painful stimuli (termed category 1), or during psychological processes which modulate pain, e.g. distraction (termed category 2). These categories include parts of the parasylvian (PS), medial frontal (MF), and paracentral cortex (S1&M1). We now propose to test the hypothesis that causal interactions both within and between category 1 and category 2 modules occur during attention to a painful stimulus. Event-related causality (ERC) was calculated from local field potentials (LFP) recorded directly from these cortical areas during the response to a painful cutaneous laser stimulus in patients being monitored for epilepsy.</p><p id="P3">The number of electrodes involved in pairs with significant ERC in category 1 was greater for pre-stimulus versus post-stimulus and for attention versus distraction. This is consistent with our prior evidence that the category 1 ‘pain network’ changes rapidly with time intervals and tasks. In contrast, the interaction <underline>between</underline> categories was often unchanged or stable across intervals and tasks, particularly in MF.</p><p id="P4">The proportion of contacts involved in interactions with PS was greater during distraction versus attention while activation was less, which suggests that distraction involves an inhibitory process in PS. Functional interactions between categories were overwhelmingly in the direction from category 2 > 1, particularly for contacts in MF which often had a driver role. These results demonstrate that MF is densely interconnected throughout the ‘pain network’ so that stimulation of MF might be used to disrupt the ‘pain network’ as a therapy for pain.</p></abstract><kwd-group><kwd>attention</kwd><kwd>human</kwd><kwd>pain</kwd><kwd>cortex</kwd><kwd>network</kwd><kwd>event related. causality</kwd></kwd-group><funding-group><award-group><funding-source country="United States">National Institute of Neurological Disorders and Stroke : NINDS</funding-source><award-id>R01 NS038493-10 || NS</award-id></award-group></funding-group></article-meta></front></pmc></record>Pour manipuler ce document sous Unix (Dilib)
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