Cognitive Keys in Psychophysical Estimation of Chemosensory Perception in University Students

Psychophysical methods allow us to measure the relationship between stimuli and sensory perception. Of these, Detection Threshold (DT) allows us to know the minimum concentration to produce taste identification. Given this, we wonder whether, for example, wine tasting experts are more capable of per...

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Main Authors: Laura María Martínez-Sánchez, Cecilio Parra-Martínez, Tomás Eugenio Martínez-García, Concha Martínez-García
Format: Article
Language:English
Published: MDPI AG 2021-12-01
Series:Foods
Subjects:
Online Access:https://www.mdpi.com/2304-8158/10/12/3134
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author Laura María Martínez-Sánchez
Cecilio Parra-Martínez
Tomás Eugenio Martínez-García
Concha Martínez-García
author_facet Laura María Martínez-Sánchez
Cecilio Parra-Martínez
Tomás Eugenio Martínez-García
Concha Martínez-García
author_sort Laura María Martínez-Sánchez
collection DOAJ
description Psychophysical methods allow us to measure the relationship between stimuli and sensory perception. Of these, Detection Threshold (DT) allows us to know the minimum concentration to produce taste identification. Given this, we wonder whether, for example, wine tasting experts are more capable of perceiving their sensory properties than other people, or whether they can distinguish them because they are better able to “describe” them. To verify this, this study analyses the influence of having prior knowledge of the name astringency and, failing that, to detect it and distinguish it between the four basic tastes. One-hundred-and-sixty-two university students with an average age of 19.43 (SD = 2.55) years were assigned to three experimental conditions: an experimental group (G.2) without previous knowledge of the name astringency and with alimentary satiety, and two control groups, both with previous knowledge of the name, these being G.1, with satiety, and G.3, with hunger. DT was collected for the four basic tastes and astringencies. Results showed significant differences in the identification of astringency, being the least identified experimental group with respect to the control groups. It is striking that G.2, without prior knowledge of the name, identified astringency as a bitter taste in most cases. This supports our hypothesis of the importance of attending to linguistic cognitive processes when psychophysically estimating taste in humans.
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spelling doaj.art-657de8ad57274ae79a4dafa34f162ef82023-11-23T08:19:18ZengMDPI AGFoods2304-81582021-12-011012313410.3390/foods10123134Cognitive Keys in Psychophysical Estimation of Chemosensory Perception in University StudentsLaura María Martínez-Sánchez0Cecilio Parra-Martínez1Tomás Eugenio Martínez-García2Concha Martínez-García3Department of Didactics of Physical, Plastic and Musical Education, Faculty of Education Sciences, University of Cádiz, 11519 Puerto Real, SpainDepartment of Chemistry, Faculty of Experimental Sciences, University of Huelva, 21007 Huelva, SpainDepartment of Internal Medicine, Juan Ramón Jiménez University Hospital, 21005 Huelva, SpainDepartment of Social, Developmental and Educational Psychology, Faculty of Education, Psychology and Sports Sciences, University of Huelva, 21007 Huelva, SpainPsychophysical methods allow us to measure the relationship between stimuli and sensory perception. Of these, Detection Threshold (DT) allows us to know the minimum concentration to produce taste identification. Given this, we wonder whether, for example, wine tasting experts are more capable of perceiving their sensory properties than other people, or whether they can distinguish them because they are better able to “describe” them. To verify this, this study analyses the influence of having prior knowledge of the name astringency and, failing that, to detect it and distinguish it between the four basic tastes. One-hundred-and-sixty-two university students with an average age of 19.43 (SD = 2.55) years were assigned to three experimental conditions: an experimental group (G.2) without previous knowledge of the name astringency and with alimentary satiety, and two control groups, both with previous knowledge of the name, these being G.1, with satiety, and G.3, with hunger. DT was collected for the four basic tastes and astringencies. Results showed significant differences in the identification of astringency, being the least identified experimental group with respect to the control groups. It is striking that G.2, without prior knowledge of the name, identified astringency as a bitter taste in most cases. This supports our hypothesis of the importance of attending to linguistic cognitive processes when psychophysically estimating taste in humans.https://www.mdpi.com/2304-8158/10/12/3134taste perceptionpsychophysical measuresabsolute thresholdastringency
spellingShingle Laura María Martínez-Sánchez
Cecilio Parra-Martínez
Tomás Eugenio Martínez-García
Concha Martínez-García
Cognitive Keys in Psychophysical Estimation of Chemosensory Perception in University Students
Foods
taste perception
psychophysical measures
absolute threshold
astringency
title Cognitive Keys in Psychophysical Estimation of Chemosensory Perception in University Students
title_full Cognitive Keys in Psychophysical Estimation of Chemosensory Perception in University Students
title_fullStr Cognitive Keys in Psychophysical Estimation of Chemosensory Perception in University Students
title_full_unstemmed Cognitive Keys in Psychophysical Estimation of Chemosensory Perception in University Students
title_short Cognitive Keys in Psychophysical Estimation of Chemosensory Perception in University Students
title_sort cognitive keys in psychophysical estimation of chemosensory perception in university students
topic taste perception
psychophysical measures
absolute threshold
astringency
url https://www.mdpi.com/2304-8158/10/12/3134
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