摘要
用高于听阈２０ｄＢ的声级对４０名男人和２０名女人进行了次声暴露。试验对部分受试者的血压和脉博均有影响。特别在频率为４Ｈｚ时，血压的异常概率出现了最大值。再用１２５ｄＢ的固定声级对另外２０名男人进行的次声暴露也得到了同样的结果。这表明除听党外次声可影响一些非听觉系统，特别象心血管。
Infrasound exposure for 40 male and 20 female subjects at levels 20 dB above the hearingthreshold was performed and the effects investigeted. Both blood pressure and pulse were found to beinfluenced by the exposure in part of the subjects. The largest probability of blood pressure bias fromnomal appeared at the sound frequency of 4 kHz. The last result was also obtained in another group of20 males exposed to a fixed sound level of 125 dB L.. These results make known that aside from hearing,, infrasound may somehow affect the function of certain non-auditory systems, the cardiovascular one inparticular
出处
《声学学报》
EI
CSCD
北大核心
1996年第3期254-258,共5页
Acta Acustica
基金
国家自然科学基金
