Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
2003-7-14
pubmed:abstractText
The cortical processing of allodynia (touch-evoked pain) resulting from neuralgia of the lateral cutaneous femoral nerve was investigated with a newly designed pneumatically driven brush by means of magnetoencephalography. Brushing the unaffected thigh produced subsequent activation of the contralateral primary somatosensory cortex (S1) with peak latencies of 37 and 56 ms. Brushing the affected side led to comparable activation of the contralateral S1 cortex. In addition, the magnetic fields were stronger, and the corresponding equivalent current dipoles were located more laterally, consistent with the presence of cortical reorganisation. Allodynia was also accompanied by an activation of the cingulate cortex, occurring only 92 ms. after stimulus onset, an observation suggesting an Abeta-fiber-mediated neuronal pathway involved in dynamic mechanical allodynia. This study corroborates the concept of cortical reorganisation underlying chronic pain. Furthermore, it demonstrates that a remarkable early activation of the cingulate cortex may be involved in the cortical processing of allodynia.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0959-4965
pubmed:author
pubmed:issnType
Print
pubmed:day
6
pubmed:volume
14
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
785-9
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2003
pubmed:articleTitle
Cortical processing of brush-evoked allodynia.
pubmed:affiliation
Department of Neurology, University of Erlangen-Nuremberg, Schwabachanlage 6, 91054 Erlangen, Germany. mailhoefner@physiologiel.uni-erlangen.de
pubmed:publicationType
Journal Article, Case Reports, Research Support, Non-U.S. Gov't