| 强次声波对豚鼠前庭功能的影响 |
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| 引用本文： | 冯勃,姜泗长,杨伟炎. 强次声波对豚鼠前庭功能的影响[J]. 中华航空航天医学杂志, 2000, 11(2): 105-107 |
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| 作者姓名： | 冯勃 姜泗长 杨伟炎 |
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| 作者单位： | 中国人民解放军总医院耳鼻咽喉科,北京 |
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| 基金项目： | 军队“九五”医药卫生科研基金资助项目!(96L051) |
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| 摘 要： | 目的 观察强次声波对豚鼠前庭功能的影响。方法 将１５只豚鼠置于频率８Ｈｚ、强度为１３５ｄＢ ＳＰＬ的次声声次中连续暴露９０ｍｉｎ。应用正弦摆动试验（ＳＰＴ）记录技术定量评价强次声波暴露前后豚鼠前庭功能的变化。结果 强次声波暴露后不同时间正弦摆动诱发的豚鼠前庭性眼震的最大慢相速度（ＳＰＶ）和频率较次声暴露前有轻微降低趋势，但差异无显著性意义，在观测终期，眼震ＳＰＶ及频率（ＳＰＶ）和频率较次声暴露前有
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| 关 键 词： | 次声 前庭功能 正弦摆动试验 |
| 修稿时间： | 1999-11-04 |
Effectsof intense infrasound on vestibular function in guinea pigs |
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| FENG Bo,JIANG Sichang,YANG Weiyan. Effectsof intense infrasound on vestibular function in guinea pigs[J]. Chinese Journal of Aerospace Medicine, 2000, 11(2): 105-107 |
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| Authors: | FENG Bo JIANG Sichang YANG Weiyan |
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| Affiliation: | FENG Bo,JIANG Sichang,YANG Weiyan,Department of Otolaryngology,General Hospital of PLA,Beijing 100853,China |
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| Abstract: | Objective To define the effects of intense infrasound on vestibular function in guinea pigs. Method Fifteen albino guinea pigs served as subjects. The animals were exposed to 8 Hz infrasound at 135 dB SPL for 90 minutes in a reverberant chamber. The vestibular function of the animals were evaluated by sinusoidal pendular test(SPT) before and immediately after exposure, and 2 and 5 days later respectively. Results The slow phase velocity and the frequency of the vestibular nystagmus elicited by SPT declined slightly immediately after intense infrasound exposure as compared with baseline value, but the changes were not significant ( P >0.05). No after effects were observed. Conclusion Intense infrasound may temporarily depress the excitability of the vestibular end organs of exposed guinea pigs, but doesn't significantly affect the vestibular function. |
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| Keywords: | Infrasound Vestibular function Sinusoidal pendular test Guinea pig |
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