Anchoring biases affect repeated scores of thermal, moisture, tactile and comfort sensations in transient conditions

Raccuglia, Margherita; Heyde, Christian; Lloyd, Alex; Ruiz, Daniel; Hodder, Simon; Havenith, George

doi:10.1007/s00484-018-1595-2

Cited by 15 publications

(9 citation statements)

References 39 publications

(48 reference statements)

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“…Currently, assessment of comfort requires the evaluation of a garment by human participants. 23–25 This is an expensive process from an industrial fabric design process point of view, as significant amounts of resources and time are required: (a) to develop the fabric, (b) design the garment and (c) evaluate its use by human participants. The use of multiscale computer models to simulate the role of clothing in thermoregulation is an active research area, 26–29 and such models may aid in silico evaluation of perceived comfort for fabric design.…”

Section: Discussionmentioning

confidence: 99%

Bimodal behavior in fabric drying kinetics: An interpretation of modes

Hussan

Roberts

Hamilton³

et al. 2019

Textile Research Journal

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Thermo-physiological comfort is an essential property attributed to fabrics. Perceived comfort can be related to the delay in the user experiencing the ambient conditions and the manner in which the fabric manages liquid water. A multitude of material characteristics, ranging from the surface chemistry of the fibers, yarn packing and knit geometry, affect perceived comfort. Standard measures of thermal and evaporative resistance characterize the fabric response at steady state and do not provide insight into the thermal/vapor balance kinetics under dynamic conditions. While investigating an existing dynamic test, International Organization for Standardization 13029:2012, for relating fabric properties to comfort, we observed that the fabric drying kinetics exhibited bimodal behavior. Here, we describe the mechanism that leads to the observed bimodal drying kinetics. While the standard measures the time taken to reach steady state, we use the power profile of the modes to derive quantitative metrics to characterize fabric properties. The derived metrics are based on the observation that the heat of wetting is nearly a constant for a given relative humidity for a material, and that the heat of sorption per unit of absorbed water is identical for a wide range of fabrics. The derived metrics distinguish different fiber types and fabric geometries. The proposed metrics are easily calculated from experimental observations without requiring any modification to the standard test.

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Section: Discussionmentioning

confidence: 99%

Bimodal behavior in fabric drying kinetics: An interpretation of modes

Hussan

Roberts

Hamilton³

et al. 2019

Textile Research Journal

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“…Amended into the climate sensitive version (EAMQ-Climate: mobility/space), several winter-specific meteorological conditions were added. It may be the case that subjective data relating to the senses, such as thermal environment, vision or noise, have a more instant impact (Raccuglia et al 2018), than e.g. perceptions of mobility-related physical demands and movement such as in the original EAMQ.…”

Section: Methodological Considerationsmentioning

confidence: 99%

Perceived impact of meteorological conditions on the use of public space in winter settlements

Larsson

Chapman

2020

Int J Biometeorol

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This study aimed to assess the impact of meteorological conditions on the use of public space in Scandinavia and Canada. Between September 21 and December 18, 2017, a cross-sectional online survey 'EAMQ-Climate: space' was distributed via web-based platforms. Survey responses were received from 361 residents (258 people from Scandinavia and 103 from Canada). The relative impact of the meteorological determinants on the use of public space was calculated, and a factor analysis was performed. Disparities between Canada and Scandinavia as well as between the climate zones represented were analysed using ANOVA. Overall results showed that the most significant meteorological enablers for the use of outdoor public spaces in winter were solar gain, snowfall and snow-covered surfaces. The main barriers were slush-covered and icy surfaces, rainfall and darkness. Wind and cold were conditions with less influence. The impact of rain and ice, however, differed between climatic zones. It was also established that, when addressing the meteorological impact on avoiding the use of public spaces in winter, it is vital to discriminate between conditions related to a) the ground surface and b) ambient conditions, as well as the particular significance of c) snow and sun, and d) darkness. For the design of public space in winter cities, we conclude that designers need to focus on a wider range of weather conditions than sun, wind and cold, and include snow, rainfall, slushy and icy ground and poor visibility. The study suggests that winter public space has a higher climatic design requirement to be successful than streets and pathways that are mainly used for soft mobility.

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“…In addition to this, a large body of literature has investigated subjective thermal sensations evoked in response to the application of conductive cold and hot stimuli to localized areas of skin (Stevens et al 1974 ; Nakamura et al 2008 ; Ouzzahra et al 2012 ; Gerrett et al 2014 , 2015b ; Coull 2019 ). This knowledge has been successfully applied to the domains of clothing design, comfort assessment, and sport sciences (Fukazawa and Havenith 2009 ; Ouzzahra et al 2012 ; Gerrett et al 2013 ; Raccuglia et al 2016 , 2017 , 2018a , b ).…”

Section: Introductionmentioning

confidence: 99%

“…Recent studies have, however, queried some of the principles and assumptions underlying our interpretation of thermal subjective responses to temperature and wetness stimuli. For example, Raccuglia et al ( 2018a ) demonstrated that thermosensory responses over time are prone to influence from a previous rating (i.e., anchoring bias), which can result in systematically higher sensation scores than those truly experienced. Likewise, it has been suggested that the sensory magnitude between verbal anchors on thermal sensation and comfort scales are not perceived as equal; while the relationship between thermal sensation and thermal comfort is largely variable across individuals, and interdependent on contextual factors, such as the residing climate, ethnicity or native language (Havenith et al 2020 ; Schweiker et al 2020 ).…”

Section: Introductionmentioning

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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Anchoring biases affect repeated scores of thermal, moisture, tactile and comfort sensations in transient conditions

Cited by 15 publications

References 39 publications

Bimodal behavior in fabric drying kinetics: An interpretation of modes

Bimodal behavior in fabric drying kinetics: An interpretation of modes

Perceived impact of meteorological conditions on the use of public space in winter settlements

An examination of five theoretical foundations associated with localized thermosensory testing

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