Publication Date:
1991-03-15
Description:
The representation of pain in the cerebral cortex is less well understood than that of any other sensory system. However, with the use of magnetic resonance imaging and positron emission tomography in humans, it has now been demonstrated that painful heat causes significant activation of the contralateral anterior cingulate, secondary somatosensory, and primary somatosensory cortices. This contrasts with the predominant activation of primary somatosensory cortex caused by vibrotactile stimuli in similar experiments. Furthermore, the unilateral cingulate activation indicates that this forebrain area, thought to regulate emotions, contains an unexpectedly specific representation of pain.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Talbot, J D -- Marrett, S -- Evans, A C -- Meyer, E -- Bushnell, M C -- Duncan, G H -- New York, N.Y. -- Science. 1991 Mar 15;251(4999):1355-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratoire de neurophysiologie comportementale, Faculte de medecine dentaire, Universite de Montreal, Quebec, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2003220" target="_blank"〉PubMed〈/a〉
Keywords:
Adult
;
Animals
;
Anxiety/physiopathology
;
Brain Mapping
;
Cerebral Cortex/*physiology
;
Functional Laterality
;
Hot Temperature
;
Humans
;
Magnetic Resonance Imaging
;
Male
;
Pain/*physiopathology
;
Tomography, Emission-Computed
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
