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  Representation of spatial information in key areas of the descending pain modulatory system

Ritter, C., Hebart, M. N., Wolbers, T., & Bingel, U. (2014). Representation of spatial information in key areas of the descending pain modulatory system. The Journal of Neuroscience, 34(13), 4634-4639. doi:10.1523/JNEUROSCI.4342-13.2014.

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 Urheber:
Ritter, Christoph1, Autor
Hebart, Martin N.1, Autor           
Wolbers, Thomas 1, Autor
Bingel, Ulrike1, Autor
Affiliations:
1External Organizations, ou_persistent22              

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 Zusammenfassung: Behavioral studies have demonstrated that descending pain modulation can be spatially specific, as is evident in placebo analgesia, which can be limited to the location at which pain relief is expected. This suggests that higher-order cortical structures of the descending pain modulatory system carry spatial information about the site of stimulation. Here, we used functional magnetic resonance imaging and multivariate pattern analysis in 15 healthy human volunteers to test whether spatial information of painful stimuli is represented in areas of the descending pain modulatory system. We show that the site of nociceptive stimulation (arm or leg) can be successfully decoded from local patterns of brain activity during the anticipation and receipt of painful stimulation in the rostral anterior cingulate cortex, the dorsolateral prefrontal cortices, and the contralateral parietal operculum. These results demonstrate that information regarding the site of nociceptive stimulation is represented in these brain regions. Attempts to predict arm and leg stimulation from the periaqueductal gray, control regions (e.g., white matter) or the control time interval in the intertrial phase did not allow for classifications above chance level. This finding represents an important conceptual advance in the understanding of endogenous pain control mechanisms by bridging the gap between previous behavioral and neuroimaging studies, suggesting a spatial specificity of endogenous pain control.

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Sprache(n): eng - English
 Datum: 2014-01-302013-10-102014-02-052014-03-262014-03-26
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: DOI: 10.1523/JNEUROSCI.4342-13.2014
PMID: 24672009
PMC: PMC6608122
 Art des Abschluß: -

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Titel: The Journal of Neuroscience
  Andere : The Journal of Neuroscience: the Official Journal of the Society for Neuroscience
  Kurztitel : J. Neurosci.
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: Washington, DC : Society of Neuroscience
Seiten: - Band / Heft: 34 (13) Artikelnummer: - Start- / Endseite: 4634 - 4639 Identifikator: ISSN: 0270-6474
CoNE: https://pure.mpg.de/cone/journals/resource/954925502187_1