Experimental and clinical research on itch mechanism
Project/Area Number |
60510077
|
Research Category |
Grant-in-Aid for General Scientific Research (C)
|
Allocation Type | Single-year Grants |
Research Field |
Psychology
|
Research Institution | Doshisha University |
Principal Investigator |
HAMA Haruyo Professor, Doshisha University, 文学部, 教授 (60066107)
|
Co-Investigator(Kenkyū-buntansha) |
MATSUYAMA Yoshinori Professor, Doshisha University, 文学部, 教授 (10066045)
|
Project Period (FY) |
1985 – 1986
|
Project Status |
Completed (Fiscal Year 1986)
|
Budget Amount *help |
¥1,400,000 (Direct Cost: ¥1,400,000)
Fiscal Year 1986: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 1985: ¥1,000,000 (Direct Cost: ¥1,000,000)
|
Keywords | Itch / Rorschach Test / Atopic dermatitis / Skin temperature / Tactile sensation / 血流量 |
Research Abstract |
1. A study of itch intensity in relation to two-point tactual discrimination. The purpose was to investigate whether or not the areas of the human body most sensitive to itch stimuli are identical with the body parts least sensitive to tactual discrimination. Subjects were 12 college students. The itching was induced by graded Japanese yam. The body areas were the appear arm, the lower leg and the middle finger. An experimental session consisted of a stimulus-application period (200s) and a post-application period (600s). Self-ratings on itching was recorded during two periods. The results suggest that tactile sensation has some interaction with itching. 2. The effect of itch on body image. Porschach Test was administered to children with otopic dermatites and control children. The result of Body-Image Boundary Score analysis showed that itching is significantly correlated with the penetrated boundary image as an index of enterior body layer. 3. A pilot study of itch intensity in relation to skin temperature. To increase the skin temperature the fore arm of each subject was exposed to a 600 watt bulb and to decrease the skin temperature dried ice was brought close to the fore arm. Subject were 52 male students. Itch was induced by the graded yam poteto. It was found that the decreasing of itch was faster when the skin temperature was higher or lower in comparison to normal temperature.
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Report
(1 results)
Research Products
(4 results)