Qualitative analysis of pupillary responses to taste stimulation
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概要
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In order to investigate if it is possible to objectively assess gustatory sensation, which is one of the oral senses, we qualitatively analyzed pupillary responses using an infrared electronic pupillometer after stimulation with taste-testing preparations that elicit the taste sensations of sweet, sour, salty, and bitter. The Iriscorder^[○!R] C7364 (Hamamatsu Photonics, Shizuoka, Japan) was used to measure pupillary responses in 8 adult subjects. Taste discs^[○!R] (Sanwa Kagaku Kenkyusho, Nagoya, Japan) were used to stimulate the taste sensations of sweetness, sourness, saltiness, and bitterness. Water was used for no taste. Pupillary responses were measured before and after each taste stimulation, and the pupillary area and maximum pupillary contraction rate were analyzed. We found no significant difference in the maximum pupillary contraction rate, which is an index of parasympathetic activity, during any of the taste stimulations. However, the pupillary area, which is an index of sympathetic activity, showed significant increases on stimulations involving saltiness and bitterness. These results suggest the possibility of objectively assessing the sense of taste using an infrared electronic pupillometer.
- 大阪歯科学会の論文
著者
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Komasa Yutaka
Department of Geriatric Dentistry, Osaka Dental University
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TANAKA Eiji
Department of Orthodontics and Craniofacial Developmental Biology, Hiroshima University Graduate Sch
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ONO Yoshiaki
Department of Physics,Nagoya University
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Yoshioka Masataka
Graduate School of Dentistry (Geriatric Dentistry), Osaka Dental University
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Asai Takatsugu
Department of Geriatric Dentistry, Osaka Dental University
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Tanaka Eiji
Department Of Digestion And Cardiovascular Medicine University Of Tokushima
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Ono Yoshiaki
Department Of Geriatric Dentistry Osaka Dental University
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Yoshioka Masataka
Graduate School Of Dentistry (geriatric Dentistry) Osaka Dental University
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Tanaka Eiji
Department Of Geriatric Dentistry Osaka Dental University
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Ono Yoshiaki
大阪歯科大学 高齢者歯科学
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Komasa Y
Graduate School Of Dentistry (geriatric Dentistry) Osaka Dental University
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Asai T
Department Of Geriatric Dentistry Osaka Dental University
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Asai Takatsugu
Department Of Geriatric Dentistry Osaka Dental University
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Uesugi Naoto
Graduate School Of Dentistry (geriatric Dentistry) Osaka Dental University
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Komasa Yutaka
Osaka Dental Univ. Osaka Jpn
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Komasa Yutaka
Department Of Geriatric Dentistry Graduate School Of Geriatric Dentistry Osaka Dental University
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Uesugi Naoto
Department of Geriatric Dentistry, Osaka Dental University
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Uesugi Naoto
Department Of Geriatric Dentistry Osaka Dental University
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Komasa Yutaka
Department of Geriatric Dentistry , Osaka Dental University
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