Presentation 2010-01-28
The study of olfactory information processing in human brain : odor evoked potentials by pleasant and unpleasant smells
Shinji YAMAGUCHI, Tomohiko IGASAKI, Yuki HAYASHIDA, Nobuki MURAYAMA,
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Abstract(in English) In this report, to clarify the mechanism of olfactory information processing in human brain, we investigated the relationship between sensory evaluation and EEC response when a peach (pleasant) smell or a putrid (unpleasant) smell was delivered to the human. 10 healthy men were participated. The subjects were instructed to evaluate the pleasant/unpleasant level and the odor magnitude for each odor stimulus. EEG was also recorded during the same level/magnitude odor stimulation. According to the grand mean waveform, positive potentials were observed at latency around 750 msec and 500 msec in pleasant and in unpleasant smell condition, respectively. Despite of using the same level/magnitude odor in sensory evaluation, a quick response observed in unpleasant smell condition suggested that the putrid smell might be recognized as a dangerous smell for human.
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Keyword(in English) pleasant / olfaction / sensory evaluation / olfactory evoked potential
Paper # MBE2009-77
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Committee MBE
Conference Date 2010/1/21(1days)
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Registration To ME and Bio Cybernetics (MBE)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) The study of olfactory information processing in human brain : odor evoked potentials by pleasant and unpleasant smells
Sub Title (in English)
Keyword(1) pleasant
Keyword(2) olfaction
Keyword(3) sensory evaluation
Keyword(4) olfactory evoked potential
1st Author's Name Shinji YAMAGUCHI
1st Author's Affiliation Graduate School of Science and Technology, Kumamoto University()
2nd Author's Name Tomohiko IGASAKI
2nd Author's Affiliation Graduate School of Science and Technology, Kumamoto University
3rd Author's Name Yuki HAYASHIDA
3rd Author's Affiliation Graduate School of Science and Technology, Kumamoto University
4th Author's Name Nobuki MURAYAMA
4th Author's Affiliation Graduate School of Science and Technology, Kumamoto University
Date 2010-01-28
Paper # MBE2009-77
Volume (vol) vol.109
Number (no) 406
Page pp.pp.-
#Pages 4
Date of Issue