Smell and taste of chewing gum affect frequency domain EEG source localizations
Publisher DOI
PubMed ID
9639238
Abstract
We investigated brain electric field signatures of subjective feelings after chewing regular gum or gum base without flavor. 19-channel eyes-closed EEG from 20 healthy males before and after 5 minutes of chewing the two gum types in random sequence was source modeled in the frequency domain using the FFT-Dipole-Approximation. 3-dimensional brain locations and strengths (Global Field Power, GFP) of the equivalent sources of five frequency bands were computed as changes from pre-chewing baseline. Gum types differed (ANOVA) in pre-post changes of source locations for the alpha-2 band (to anterior and right after regular gum, opposite after gum base) and beta-2 band (to anterior and inferior after regular gum, opposite after gum base), and of GFP for delta-theta, alpha-2 and beta-1 (regular gum: increase, gum base: decrease). Subjective feeling changed to more positive values after regular gum than gum base (ANOVA).—Thus, chewing gum with and without taste-smell activates different brain neuronal populations.
Date Issued
1998
Publication Type
Article
Subject(s)
Subjects
Multichannel EEG
•
FFT-Dipole-Approximation
•
chewing gum
•
subjective feeling
•
smell and taste
•
frequency domain source modeling
Language(s)
en
Author(s)
Yagyu, T. | |
Kondakor, I. | |
Kochi, K. | |
Lehmann, D. | |
Kinoshita, T. | |
Hirota, T. | |
Yagyu, T. |
Journal
International journal of neuroscience
Publisher
Informa Healthcare
ISSN
0020-7454
Access(Rights)
metadata.only