Magnitude Estimation Approach for Assessing Stickiness Sensation Perceived in Wet Fabrics

Maggie, Ka-Po; Chau, Kam-Hong; Kan, Chi Wai; Fan, Jintu

doi:10.1007/s12221-018-8626-9

Cited by 16 publications

(11 citation statements)

References 48 publications

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“…As substrate CoF increased wetness perception also increased, forming a positive linear relationship. This was unexpected, given that perceptual research has previously associated higher CoFs with lower wetness perception, such that rough stimuli were perceived as dry and vice versa 6,41,42 . In terms of roughness perception, interface volume did not have a significant effect, nor did CoF.…”

Section: Discussionmentioning

confidence: 91%

The role of friction on skin wetness perception during dynamic interactions between the human index finger pad and materials of varying moisture content

Merrick

Rosati

Filingeri

2022

Journal of Neurophysiology

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Mechanosensory inputs arising from dynamic interactions between the skin and moisture, such as when sliding a finger over a wet substrate, contribute to the perception of skin wetness. Yet, the exact relationship between the mechanical properties of a wet substrate, such as friction, and the resulting wetness perception, remains to be established under naturalistic haptic interactions. We modelled the relationship between mechanical and thermal properties of substrates varying in moisture levels (0.49x10-4; 1.10x10-4; 2.67x10-4 ml mm-2), coefficient of friction (0.783, 0.848, 1.033, 0.839, 0.876, 0.763), and maximum thermal transfer rate (Qmax, ranging from 511 to 1260 W m-2 K-1), and wetness perception arising from the index finger pad's contact with such substrates. Forty young participants (20M/20F) performed dynamic interactions with 21 different stimuli using their index finger pad at a controlled angle, pressure, and speed. Participants rated their wetness perception using a 100 mm visual analogue scale (very dry to very wet). Partial least squares regression analysis indicated that coefficient of friction explained only ~11% of the variance in wetness perception, while Qmax and moisture content accounted for ~22% and 18% of the variance, respectively. These parameters shared positive relationships with wetness perception, such that the greater the Qmax, moisture content, and coefficient of friction, the wetter the perception experienced. We found no differences in wetness perception between males and females. Our findings indicate that while the friction of a wet substrate modulates wetness perception, it is still secondary to thermal parameters such as Qmax.

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Section: Discussionmentioning

confidence: 91%

The role of friction on skin wetness perception during dynamic interactions between the human index finger pad and materials of varying moisture content

Merrick

Rosati

Filingeri

2022

Journal of Neurophysiology

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“…As understood from findings, participants scored lower confidence in their thermal sensation than expected, despite thermal sensation being a very basic and fundamental cutaneous sense, much like tactile, pain and itch sensing (Tominaga and Calerina 2004 ; McGlone and Reilly 2010 ; Goldstein 2013 ; Filingeri et al 2015 ; Mather 2016 ). Given that thermal sensation is a basic and moderate fidelity-perception, it stands to reason that complex and multisensory perceptions such as wetness, stickiness, texture, comfort, fatigue or even ratings perceived exertion may be yield even lower levels of certainty than those observed for thermal sensations (Hollins et al 1993 ; Bertaux et al 2007 ; Filingeri et al 2014a , 2015 ; Lloyd et al 2016 ; Raccuglia et al 2017 ; Maggie et al 2018 ). This would have very important implications for our understanding of such complex perceptions and bring into question the validity of observations using sensorial scales for complex psychophysiological phenomena.…”

Section: Discussionmentioning

confidence: 99%

An examination of five theoretical foundations associated with localized thermosensory testing

et al. 2021

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Purpose To assess five theoretical foundations underlying thermosensory testing using local thermal stimuli. Methods Thermal sensation, discomfort and the confidence of thermal sensation scores were measured in 9 female and 8 male volunteers in response to 17 physical contact temperature stimuli, ranging between 18–42 °C. These were applied to their dorsal forearm and lateral torso, across two sessions. Results Thermal sensation to physical temperature relationships followed a positive linear and sigmoidal fit at both forearm (r2 = 0.91/r2 = 0.91, respectively) and lateral torso (r2 = 0.90/ r2 = 0.91, respectively). Thermal discomfort to physical temperature relationships followed second and third-order fits at both forearm (r2 = 0.33/r2 = 0.34, respectively) and lateral torso (r2 = 0.38/r2 = 0.39, respectively) test sites. There were no sex-related or regional site differences in thermal sensation and discomfort across a wide range of physical contact temperatures. The median confidence of an individual’s thermal sensation rating was measured at 86%. Conclusion The relation between thermal sensation and physical contact temperature was well described by both linear and sigmoidal models, i.e., the distance between the thermal sensation anchors is close to equal in terms of physical temperatures changes for the range studied. Participants rated similar thermal discomfort level in both cold and hot thermal stimuli for a given increase or decrease in physical contact temperature or thermal sensation. The confidence of thermal sensation rating did not depend on physical contact temperature.

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“…The typical contact area with the forearm was about 10 × 8 cm 2 . The applied load, corresponding to an apparent contact pressure < 5 Pa, is lower than in similar setups such as the body movement simulator by Tang et al [22], the sliding experiment by Raccuglia et al [13], or the quite similar setup by Kenins, where the applied pressure is still more than a factor of 20 higher [16]. Unfortunately, .3% is taken as the hair coverage.…”

Section: Friction Experimentsmentioning

confidence: 91%

Role of Hair Coverage and Sweating for Textile Friction on the Forearm

et al. 2020

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Friction of textiles on the human forearm is an important factor in comfort sensations of garments. We built an experiment to measure friction for textiles sliding on the forearm under loading conditions which are characteristic for wearing shirts or jackets. The hair coverage of the participants’ forearm was quantified by image analysis of photographs of the arm in the region of contact. Friction results for five standard textiles suggest to treat hair coverage in two classes. Sweating after physical activity leads to an increase of friction by factors of 2 to 5 for participants with less hairy forearms, while an increase by a factor of 1 to 1.7 only was found for participants with more hairy forearms. We introduce a method of wetting the forearm of study participants in a controlled way with water, which results in similar friction as for the sweating forearm after physical activity. The method allows for efficient studies of the role of skin moisture for friction including varying hair coverage of the skin.

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Magnitude Estimation Approach for Assessing Stickiness Sensation Perceived in Wet Fabrics

Cited by 16 publications

References 48 publications

The role of friction on skin wetness perception during dynamic interactions between the human index finger pad and materials of varying moisture content

The role of friction on skin wetness perception during dynamic interactions between the human index finger pad and materials of varying moisture content

An examination of five theoretical foundations associated with localized thermosensory testing

Role of Hair Coverage and Sweating for Textile Friction on the Forearm

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