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Cutaneous Warm and Cool Sensation Thresholds and the Inter-threshold Zone in Malaysian and Japanese Males

Published on Feb 1, 2010in Journal of Thermal Biology1.902
· DOI :10.1016/j.jtherbio.2009.11.002
Joo-Young Lee23
Estimated H-index: 23
(Kyushu University),
Mohamed Saat8
Estimated H-index: 8
(RMIT: RMIT University)
+ 4 AuthorsYutaka Tochihara22
Estimated H-index: 22
(Kyushu University)
Abstract
Abstract The purpose of this study was to investigate ethnic differences in cutaneous thermal sensation thresholds and the inter-threshold sensory zone between tropical (Malaysians) and temperate natives (Japanese). The results showed that (1) Malaysian males perceived warmth on the forehead at a higher skin temperature ( T sk ) than Japanese males ( p T sk in Malaysians ( p p T sk and slower at an identical speed of warming, and had a wider range of the inter-threshold sensory zone than temperate natives.
  • References (41)
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References41
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#1Raf J. Schepers (Johns Hopkins University)H-Index: 3
#2Matthias Ringkamp (Johns Hopkins University)H-Index: 24
Cutaneous thermosensation plays an important role in thermal regulation and detection of potentially harmful thermal stimuli. Multiple classes of primary afferents are responsive to thermal stimuli. Afferent nerve fibers mediating the sensation of non-painful warmth or cold seem adapted to convey thermal information over a particular temperature range. In contrast, nociceptive afferents are often activated by both, painful cold and heat stimuli. The transduction mechanisms engaged by thermal sti...
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#1Mayumi NakamuraH-Index: 7
#2Tamae Yoda (Dokkyo University)H-Index: 12
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Sensations evoked by thermal stimulation (temperature-related sensations) can be divided into two categories, “temperature sensation” and “thermal comfort.” Although several studies have investigated regional differences in temperature sensation, less is known about the sensitivity differences in thermal comfort for the various body regions. In the present study, we examined regional differences in temperature-related sensations with special attention to thermal comfort. Healthy male subjects si...
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The purpose of this study was to determine the body surface area (BSA) based on the alginate method, to derive formulae for estimating BSA, and to compare the error of the present formula to previous formulas obtained from other countries. We directly measured the entire body surface area of 34 males (20–60 years old, 158.5–187.5 cm in height, 48.5–103.1 kg in body weight) and 31 females (20–63 years old, 140.6–173.1 cm, 36.8–106.1 kg) using alginate. The measurements showed that the BSA had a m...
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#1Mohamed Saat Ismail (RMIT: RMIT University)H-Index: 2
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#1Nigel A.S. Taylor (UOW: University of Wollongong)H-Index: 34
Abstract This paper focusses upon evidence of thermoregulatory differences among racially divergent humans. Thermal habituation is a central theme, explored first in the cold, and then within hot environments. The thermoeffector of primary interest is the eccrine sweat gland. It is hypothesised, with supporting evidence discussed, that the lower sweat secretion observed in indigenes from hot regions represents a form of thermoregulatory habituation. Finally, elements of experimental design are d...
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The relationship between thermal detection threshold and rate of temperature change of the thermal stimulus when slow ( 0.1). In contrast, WDT did not increase linearly with rate of stimulus temperature change when the Method of Limits was used and threshold assessment with the Method of Levels showed WDT assessed using a 0.3°C s−1 ramp rate were s...
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