title: Influences of audio-visual environments on feelings of deliciousness during having sweet foods: an electroencephalogram frequency analysis study.
abstract: Feelings of deliciousness during having foods are mainly produced by perceptions of sensory information extracted from foods themselves, such as taste and olfaction. However, environmental factors might modify the feeling of deliciousness. In the present study, we investigated how the  condition of audio-visual environments affects the feeling of deliciousness during having sweet foods. Electroencephalograms (EEGs) were recorded from the frontal region of the scalp of healthy participants under virtual scenes of tearoom and construction work, respectively. The participants  were asked to rate deliciousness after the recordings. Frequency analyses were performed from the EEGs. During having the foods, occupancy rates of beta frequency band between tearoom scenes and construction work scenes were markedly different, but not in other frequency bands. During having  no food, in contrast, there was no difference of occupancy rates in respective frequency bands between the two different scenes. With regard to deliciousness during having sweet foods, all participants rated high scores under the scenes of tearoom than those under the scenes of construction  work. Interestingly, there is a positive correlation between occupancy rates of beta frequency band and scores of deliciousness. These findings suggest that comfortable audio-visual environments play an important role in increasing the feeling of deliciousness during having sweet foods, in  which beta frequency rhythms may be concerned with producing comprehensive feelings of deliciousness.
authors: Department of Oral and Maxillofacial Surgery, Kanazawa Medical University, Uchinada-cho, Japan. hyoshimu@kanazawamed.ac.jp
authors: Hiroshi
authors: H
authors: Yoshimura
authors: Miho
authors: M
authors: Honjo
authors: Tokio
authors: T
authors: Sugai
authors: Mamichi
authors: M
authors: Kawabe
authors: Keiseki
authors: K
authors: Kaneyama
authors: Natsuki
authors: N
authors: Segami
authors: Nobuo
authors: N
authors: Kato
mesh_terms: D000161:Acoustic Stimulation; D000328:Adult; D001307:Auditory Perception / Q000502:physiology; D001611:Beta Rhythm; D019422:Dietary Sucrose; D004644:Emotions / Q000502:physiology*; D004777:Environment; D005502:Food; D005625:Frontal Lobe / Q000502:physiology*; D006801:Humans; D010775:Photic Stimulation; D055697:Taste Perception / Q000502:physiology*; D014796:Visual Perception / Q000502:physiology
chemical_list: D019422:Dietary Sucrose