{"title":"Is Metallic Perception a Taste, an Aroma, or a Flavor?","authors":"Guillaume Buiret, Thierry Thomas-Danguin, Gilles Feron","doi":"10.1111/joss.70023","DOIUrl":null,"url":null,"abstract":"<div>\n \n <p>The study investigates whether the perception of metallic taste (MT) is an aroma or a taste. MT tends to disappear with nasal occlusion, indicating it might be an aroma. However, it also occurs after neurological injuries that affect taste through the facial nerve. The perception of an iron sulfate solution applied to different parts of the tongue (related to the facial and glossopharyngeal nerves) was assessed in 120 healthy volunteers with either open (<i>n</i> = 60) or closed (<i>n</i> = 60) noses. Nasal occlusion significantly reduced the perception of iron sulfate, eliminating it in 31.7% of participants but not completely in the remaining 68.3%. With open noses, the intensity was significantly stronger when applied to the glossopharyngeal nerve region than to the facial nerve. These differences disappeared with nasal occlusion. The conclusion is that metallic perception involves both retro-olfactory and gustatory components, suggesting it is a metallic flavor.</p>\n <p><b>Trial Registration:</b> ClinicalTrials.gov identifier: NCT05227157</p>\n </div>","PeriodicalId":17223,"journal":{"name":"Journal of Sensory Studies","volume":"40 1","pages":""},"PeriodicalIF":1.6000,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Sensory Studies","FirstCategoryId":"97","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1111/joss.70023","RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"FOOD SCIENCE & TECHNOLOGY","Score":null,"Total":0}
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Abstract
The study investigates whether the perception of metallic taste (MT) is an aroma or a taste. MT tends to disappear with nasal occlusion, indicating it might be an aroma. However, it also occurs after neurological injuries that affect taste through the facial nerve. The perception of an iron sulfate solution applied to different parts of the tongue (related to the facial and glossopharyngeal nerves) was assessed in 120 healthy volunteers with either open (n = 60) or closed (n = 60) noses. Nasal occlusion significantly reduced the perception of iron sulfate, eliminating it in 31.7% of participants but not completely in the remaining 68.3%. With open noses, the intensity was significantly stronger when applied to the glossopharyngeal nerve region than to the facial nerve. These differences disappeared with nasal occlusion. The conclusion is that metallic perception involves both retro-olfactory and gustatory components, suggesting it is a metallic flavor.
期刊介绍：
The Journal of Sensory Studies publishes original research and review articles, as well as expository and tutorial papers focusing on observational and experimental studies that lead to development and application of sensory and consumer (including behavior) methods to products such as food and beverage, medical, agricultural, biological, pharmaceutical, cosmetics, or other materials; information such as marketing and consumer information; or improvement of services based on sensory methods. All papers should show some advancement of sensory science in terms of methods. The journal does NOT publish papers that focus primarily on the application of standard sensory techniques to experimental variations in products unless the authors can show a unique application of sensory in an unusual way or in a new product category where sensory methods usually have not been applied.
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