Linked Life Data

18024858

Source:http://linkedlifedata.com/resource/pubmed/id/18024858

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2008-2-14
pubmed:abstractText
The purpose of this study, which comprised 2 experiments, was to investigate cognitive effects on odor perception. An odor was presented using an olfactometer. In Experiment 1 ("continuous" presentation), anethole, an odor unfamiliar to most Japanese individuals, was presented continuously for 1 session (20 min), whereas in Experiment 2 ("intermittent" presentation), odor stimuli were presented 60 times for a short duration (0.2 s) over 4 sessions (24 min, including 9 min of intersession intervals), in which odor duration, temperature, and humidity were strictly controlled and the odor in the nostril was removed immediately after presentation. In each session, participants were asked to continuously evaluate odor intensity. In both Experiments 1 and 2, the participants were informed that the odor was either healthy (healthy-description group) or hazardous (hazardous-description group) prior to the session. The results show that in Experiment 2 (intermittent presentation), the hazardous-description group perceived the odor as more intense than did the healthy-description group, especially during the last 2 sessions. In Experiment 1 (continuous presentation), however, no significant difference in perceived intensity was present between the 2 groups. This study demonstrates the effect of cognitive state on perceived intensity by developing an experimental setting wherein the peripheral adaptation process was reduced and central olfactory processes were emphasized.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0379-864X
pubmed:author
pubmed:issnType
Print
pubmed:volume
33
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
163-71
pubmed:meshHeading
pubmed:year
2008
pubmed:articleTitle
Effects of cognitive factors on perceived odor intensity in adaptation/habituation processes: from 2 different odor presentation methods.
pubmed:affiliation
Department of Human Studies, Bukyo Gakuin University, Fujimino, Saitama 356-8533, Japan. takefumi@hum.u-bunkyo.ac.jp
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't