Cutaneous warm and cool sensation thresholds and the inter-threshold zone in Malaysian and Japanese males

Joo Young Lee, Mohamed Saat, Chinmei Chou, Nobuko Hashiguchi, Titis Wijayanto, Hitoshi Wakabayashi, Yutaka Tochihara

Research output: Contribution to journalArticle

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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 (Tsk) than Japanese males (p<0.05), whereas cool sensations on the hand and foot were perceived at a lower Tsk in Malaysians (p<0.05); (2) Overall, the sensitivity to detect warmth was greater in Japanese than in Malaysian males; (3) The most thermally sensitive body region of Japanese was the forehead for both warming and cooling, while the regional thermal sensitivity of Malaysians had a smaller differential than that of Japanese; (4) The ethnic difference in the inter-threshold sensory zone was particularly noticeable on the forehead (1.9±1.2C for Japanese, 3.2±1.6°C for Malaysians, p<0.05). In conclusion, tropical natives had a tendency to perceive warmth at a higher Tsk and slower at an identical speed of warming, and had a wider range of the inter-threshold sensory zone than temperate natives.

Original languageEnglish
Pages (from-to)70-76
Number of pages7
JournalJournal of Thermal Biology
Volume35
Issue number2
DOIs
Publication statusPublished - Feb 1 2010

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Sensory Thresholds
Forehead
Population Groups
ethnic differences
Skin
Hot Temperature
heat
Body Regions
skin temperature
body regions
Skin Temperature
Cooling
temperate zones
Foot
hands
cooling
Hand
Temperature

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Physiology
  • Agricultural and Biological Sciences(all)
  • Developmental Biology

Cite this

Cutaneous warm and cool sensation thresholds and the inter-threshold zone in Malaysian and Japanese males. / Lee, Joo Young; Saat, Mohamed; Chou, Chinmei; Hashiguchi, Nobuko; Wijayanto, Titis; Wakabayashi, Hitoshi; Tochihara, Yutaka.

In: Journal of Thermal Biology, Vol. 35, No. 2, 01.02.2010, p. 70-76.

Research output: Contribution to journalArticle

Lee, Joo Young ; Saat, Mohamed ; Chou, Chinmei ; Hashiguchi, Nobuko ; Wijayanto, Titis ; Wakabayashi, Hitoshi ; Tochihara, Yutaka. / Cutaneous warm and cool sensation thresholds and the inter-threshold zone in Malaysian and Japanese males. In: Journal of Thermal Biology. 2010 ; Vol. 35, No. 2. pp. 70-76.
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