| Project/Area Number |
59480346
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| Research Category |
Grant-in-Aid for General Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Otorhinolaryngology
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| Research Institution | University of Occupational and Environmental Health, Japan. |
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Principal Investigator |
OKAMOTO Ken University Of Occupational and Environmental Health, Professor., 医学部, 教授 (60122842)
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| Co-Investigator(Kenkyū-buntansha) |
知念 信雄 産業医科大学, 医学部耳鼻咽喉科, 助手
吉田 泰行 九州労災病院, 耳鼻咽喉科, 部長
YOSHIDA Yasuyuki Kyushu Rousai Hospital, Chief.
CHINEN Nobuo University of Occupational and Environmental Health, Assistant.
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| Project Period (FY) |
1984 – 1986
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| Project Status |
Completed (Fiscal Year 1986)
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| Budget Amount *help |
¥3,500,000 (Direct Cost: ¥3,500,000)
Fiscal Year 1986: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 1985: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 1984: ¥1,500,000 (Direct Cost: ¥1,500,000)
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| Keywords | Voice / Noise Induced Hearig Loss / Infrasound / 補聴器 |
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| Research Abstract |
For the efficient and safe working, it is important how one can communicate by speech. In this report, we describe about 4 topics.
1st: about Infrasound.
In the noisy places, there also exists infrasound. We have reported elsewhere that inner ear plays an important role an the recepter of infrasound. Combined stimmulation of sound and infrasound may effect hearing organ or hole body condition. This effect was easily influenced by individual susceptibility.
2nd: about Noise Induced Hearing Loss.
We found possibility of developing more hearing loss when one fried to pick up information from noisy environment.
3rd: about Occupational Voice Disorders.
We investigated voice disorders for the employee who had communicate under noisy conditions, We measured noise intensity, analysed the voice, and examined the vocal cord of those employee.
Finally: about Hearing Aid.
We have been trying to improve hearing aid to get comfortable communication by reducing unpleasant background noise.
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