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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
7
pubmed:dateCreated
2003-10-27
pubmed:abstractText
The equivalent mixture of cis-3-hexenol and trans-2-hexenal (hexenol/hexenal), 'green odor', is known to have a healing effect on the psychological damage caused by stress. Behavioral studies in humans and monkeys have revealed that hexenol/hexenal prevents the prolongation of reaction time caused by fatigue. In the present study, we investigated which brain regions are activated by the odor of hexenol/hexenal using positron emission tomography with alert monkeys. Regional cerebral blood flow (rCBF) in the prepyriform area (the primary olfactory cortex) was commonly increased by the passive application of odor: acetic acid, isoamylacetate or hexenol/hexenal. We observed rCBF increases in the orbitofrontal cortex (the secondary olfactory cortex) by these olfactory stimuli in two of three monkeys, and found no predominance of laterality of the activated hemisphere. Furthermore, rCBF increase in the cerebellum was observed in two of three monkeys, and the odor of acetic acid increased rCBF in the substantia innominata in all monkeys. In addition to these olfactory related regions, the anterior cingulate gyrus was activated by the odor of hexenol/hexenal. These findings suggest that the increase of rCBF in the anterior cingulate gyrus by the odor of hexenol/hexenal may contribute the healing effects of this mixture observed in the monkey.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0379-864X
pubmed:author
pubmed:issnType
Print
pubmed:volume
28
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
565-72
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2003
pubmed:articleTitle
Activation of the anterior cingulate gyrus by 'Green Odor': a positron emission tomography study in the monkey.
pubmed:affiliation
Department of Oral Physiology, Osaka University Graduate School of Dentistry, 1-8 Yamadaoka, Suita, Osaka 565-0871, Japan.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't