Enhancement of electroencephalogram activity in the theta-band range during unmatched olfactory-taste stimulation

• Material Type: 博士論文
• Title: Enhancement of electroencephalogram activity in the theta-band range during unmatched olfactory-taste stimulation
• Author/Editor: Maeda, Saori; Yoshimura, Hiroshi
• Author Heading: Maeda, Saori; Yoshimura, Hiroshi
• Publication, Distribution, etc.: The Physiological Society of Japan|Springer Japan KK
• Publication Date: 2019-04-04
• Publication Date (W3CDTF): 2019-04-04
• Alternative Title: 匂いと味が一致しない刺激が与えられた場合の脳波活動に見られるシータ帯域の増加
• Periodical title: The Journal of Physiological Sciences
• No. or year of volume/issue: 69 4
• Volume: 69
• Issue: 4
• Pages: 613-621
• ISSN (Periodical Title): ISSN : 1880-6546; ISSN : 1880-6562
• Degree grantor/type: 徳島大学
• Date Granted: 2020-03-12
• Dissertation Number: 甲第3379号
• Degree Type: 博士（歯学）
• Text Language Code: eng
• Subject Heading: Electroencephalogram; Fast Fourier Transform analysis; Smell; Taste; Theta; EEG; FFT
• Target Audience: 一般
• Note (General): This study aimed to investigate how odor stimulation affects taste perception. Electroencephalogram (EEG) signals were measured from the frontal region of the head in normal subjects, and frequency analyses were performed. Each odor stimulation was delivered while the subject tasted chocolate, using chocolate paste as the odorant for ‘matched odor stimulation’, and garlic paste for ‘unmatched odor stimulation’. Differences appeared in EEG signals. Comparing frequencies of EEGs under ‘unmatched odor stimulation’ with those under ‘matched odor stimulation’ showed that the occupancy rate of the theta-frequency band under ‘unmatched odor stimulation’ was higher than that under ‘matched odor stimulation’. Interestingly, a negative correlation existed between the occupancy rate of the theta-frequency band and the subjective feeling of chocolate sweetness. The present findings suggest that when we receive unmatched smell against the foods, subjective feelings are disturbed, and theta-band brain activity is increased while cross-checking the unmatched information.
• Format (IMT): application/pdf
• Access Restrictions: インターネット公開
• Rights (production): © The Physiological Society of Japan and Springer Japan KK, part of Springer Nature 2019
• Related Material (DOI): 10.1007/s12576-019-00674-9
• Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）; https://irdb.nii.ac.jp
• Original Data Provider (Database): 徳島大学 : 徳島大学機関リポジトリ

Table of Contents

http://repo.lib.tokushima-u.ac.jp/files/public/11/114677/20200423181543480924/k3379_abstract.pdf fulltext

http://repo.lib.tokushima-u.ac.jp/files/public/11/114677/2020042318154439602/k3379_review.pdf fulltext

http://repo.lib.tokushima-u.ac.jp/files/public/11/114677/20200423181544350154/k3379_fulltext.pdf fulltext