Exploring variability in detection thresholds of microparticles through participant characteristics

Santagiuliana, Marco; Marigómez, Inés Sampedro; Broers, L.D.S.P.; Hayes, John E.; Piqueras‐Fiszman, Betina; Scholten, Elke; Stieger, Markus

doi:10.1039/c9fo01211g

Cited by 23 publications

(37 citation statements)

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“…Aside from lingual moisture, changes in point pressure detection and discrimination threshold estimates can be impacted by a number of individual factors, including advancing age 22 or changes in cognition 25 which may impact attention to task. Additionally, some previous studies have either excluded smokers or asked participants to refrain from smoking for a period of time prior to testing 26 .…”

Section: Representative Resultsmentioning

confidence: 99%

Assessment of Midline Lingual Point-Pressure Somatosensation Using Von Frey Hair Monofilaments

Etter

Breen

Alcala

et al. 2020

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Detection and discrimination threshold estimates for oral point pressure are assessed using Von Frey Hair monofilaments. Consistent with previously published protocols, threshold estimates are determined using a two-interval forced choice (2-IFC) paradigm with a three down/ one up approach. Detection threshold estimates determine the mean force in which a participant can identify the presence of pressure. During the detection threshold procedure, the participant is instructed to choose which of two sequentially presented observation intervals contained the tactile test stimulus. If the participant performs three correct detections in a row (i.e., 3 'hits'), the researcher decreases the stimulus to the next lower target force level. With one incorrect detection (a 'miss'), the researcher increases the force delivered to the next higher level. This threshold estimation approach is known as a 3-down/1-up adaptive staircase. Reponses are recorded on a paper ballot, and a participant's estimated threshold is defined as the geometric mean of five reversals. During the discrimination threshold procedure, the participant is asked to make a choice between two serially presented stimuli as to which is the "harder" or "stronger" pressure. The same scoring of 'hits', 'misses', and stopping points are used. Detection and discrimination testing for oral point pressure at tongue midline takes approximately 20 min to complete. Using these commercially-available clinical tools, individual touch sensation profiles for the midline tongue can be achieved in a relatively time and cost effective means.

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Section: Representative Resultsmentioning

confidence: 99%

Assessment of Midline Lingual Point-Pressure Somatosensation Using Von Frey Hair Monofilaments

Etter

Breen

Alcala

et al. 2020

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“…Ethnicity does not seem to influence saliva flow rate (Pedrotti et al, 2019;Santagiuliana et al, 2019). To summarize, saliva is essential during oral processing and might therefore play a role in sensory perception differences between consumers.…”

Section: Consumer's Phenotypementioning

confidence: 86%

“…Texture sensitivity has been suggested to be related to tactile thresholds, however these relationships have not been confirmed yet (Aktar et al, 2015a(Aktar et al, , 2015b. Tactile sensations have been suggested to differ between consumers, however, lingual tactile sensitivity of the tongue did not differ between gender (Komiyama & De Laat, 2005) and ethnicity (Komiyama et al, 2007;Santagiuliana et al, 2019).…”

Section: Consumer's Phenotypementioning

confidence: 94%

“…Gender seems to impact saliva flow rate with females having lower saliva flow rate than males (Inoue et al, 2006;Percival et al, 1994). Ethnicity does not seem to influence saliva flow rate Pedrotti et al, 2019;Santagiuliana et al, 2019). Regarding the influence of gender on FPD, previous studies are contradictionary.…”

Section: Introductionmentioning

confidence: 94%

“…Sweetness, creaminess and saltiness perception has been found to be related to FPD (Hayes & Duffy, 2007;Miller Jr & Reedy Jr, 1990b). Multiple studies have found differences in FPD between genders and ethnicity (Bartoshuk et al, 1994;Fischer et al, 2013;Hayes et al, 2008;Miller Jr, 1986;Pedrotti et al, 2019;Prutkin et al, 2000;Santagiuliana et al, 2019), while other studies found no differences in FPD between genders and ethnicity (Cattaneo et al, 2020; During the formation of the bolus, the tongue and palate detect the texture of the food.…”

Section: Consumer's Phenotypementioning

confidence: 99%

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Understanding variation in food oral processing behaviorof consumers differing in age, gender and ethnicity : a physiological perspective

Ketel¹

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In situ oral lubrication and smoothness sensory perception influenced by tongue surface roughness

Wang

Chen

2021

J Sci Food Agric

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BACKGROUND The human tongue is important in the oral processing of food and in sensory perception. Tongue topography could influence delicate differences in sensory perception. It is hypothesized that tongue surface roughness could alter oral lubrication status and affect perception of smoothness. Fifteen participants with varying levels of tongue surface roughness were recruited and tested. Participants' in situ oral lubrication status without and after consumption of fluid food (milk with varying fat content and maltodextrin solutions with different shear viscosities) was measured. Participants' smoothness sensory scores were also recorded. RESULTS The in situ friction coefficient (0.299–1.505) was significantly positively correlated with tongue‐surface roughness (54.6–140.0 μm) in all types of test fluid samples across participants. Oral lubrication was significantly decreased when participants consumed the test fluid samples compared with no liquid food consumption, for all test fluid sample types (P < 0.05). No significant differences in in situ friction coefficient were found after participants consumed different test fluid samples, and this was mainly attributed to the limited quantities of fluid residuals in the oral cavity after expectoration. Participants whose tongue surface roughness differed did not exhibit significant differences in smoothness perception with different test fluid samples. CONCLUSION Tongue surface roughness has a strong impact on in situ oral lubrication, and fluid food intake reduces in situ oral lubrication significantly. Saliva film and tongue surface roughness might play greater roles in oral lubrication and smoothness sensory perception if fluid is expectorated after consumption. The association between oral physiology and texture perception still needs further elucidation. © 2021 Society of Chemical Industry.

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Exploring variability in detection thresholds of microparticles through participant characteristics

Abstract: This study investigated how product familiarity and physiological characteristics of participants affect detectability of microparticles in viscous and semi-solid foods.

Cited by 23 publications

References 83 publications

Assessment of Midline Lingual Point-Pressure Somatosensation Using Von Frey Hair Monofilaments

Assessment of Midline Lingual Point-Pressure Somatosensation Using Von Frey Hair Monofilaments

Understanding variation in food oral processing behaviorof consumers differing in age, gender and ethnicity : a physiological perspective

In situ oral lubrication and smoothness sensory perception influenced by tongue surface roughness

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