Linked Life Data

2932764

Source:http://linkedlifedata.com/resource/pubmed/id/2932764

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1985-12-2
pubmed:abstractText
Fifty-five low back pain patients and 47 healthy volunteers judged the intensity of calibrated thermal stimuli. The method of constant stimuli yielded a pain threshold, and sensory decision theory (SDT) methods provided two independent indices of perceptual performance: discriminability, P(A), the ability to differentiate among various stimulus intensities; and report criterion, B, the tendency to use a particular response. Compared to healthy volunteers, chronic pain patients were far poorer discriminators [lower P(A)]. In addition, the chronic pain patients were more stoical (higher B) and had higher thresholds for reporting both very faint pain and pain. The poor discriminability in patients could be due to attenuation of afferent neural input. The higher criterion suggests that the thermal stimuli were perceived as being innocuous relative to their clinical pain. Comparison of SDT indices with the threshold measures revealed that the pain threshold was highly correlated to the subject's criterion for reporting pain, B, and unrelated to discriminability, P(A).
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:issn
0033-3174
pubmed:author
pubmed:issnType
Print
pubmed:volume
47
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
461-8
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed:articleTitle
Thermal sensory decision theory indices and pain threshold in chronic pain patients and healthy volunteers.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.