Linked Life Data

9409086

Source:http://linkedlifedata.com/resource/pubmed/id/9409086

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1998-2-4
pubmed:abstractText
Opiates in general, and heroin in particular, are known to induce compulsive drug-seeking and drug-taking behavior. Addiction is accompanied by psychobiological processes which may distort perception of sensory stimuli. Gustatory and olfactory stimuli are hedonically polarized and therefore most appropriate for the assessment of the organism's reactivity to "useful" and "harmful" chemosensory events. Previous studies revealed that psychophysical self-estimates and reflectory facial expressions mirror with comparable reliability the hedonics of the perceived taste and odor sensations. In the present study both cognitive verbal and reflectory facial expressions of a group of: a) heroin addicts were recorded and compared to those of a group of b) detoxified former addicts and to c) a group of matching controls. Results show that all three groups differentiate between pleasant, indifferent and aversive tastes and odors. Active addicts estimated sweet taste and savory smells as being somewhat more pleasant, and bitter and sour tastes and a putrid odor as less unpleasant than did the other two groups. The reflectory facial displays of addicts were less expressive and discriminative than those of the two other groups. Taste- and odor-induced facial displays are known to be controlled primarily by the brainstem. The findings indicate that heroin-addiction affects brain-mechanisms, which mirror taste- and odor-hedonics. Modulation of the phylogenetically ancient, sensory-motor coordinations was found to be of a different pattern than that of the cortically-controlled cognitive reactions.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:issn
0333-7308
pubmed:author
pubmed:issnType
Print
pubmed:volume
34
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
290-9
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1997
pubmed:articleTitle
Taste- and odor-reactivity in heroin addicts.
pubmed:affiliation
Talbieh Mental Health Center, Jerusalem, Israel.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't