以暂时性听阈位移（TTS）作为观察指标。
目的探讨川芎嗪对低气压及噪声环境下听阈阈移的影响。
Objective To evaluate the effect of tetramethyl pyrazine(TMP)on noise induced hearing loss (NIHL) in hypobaric environment.
受试者坐在标准测听室内，由专业技师检查气、骨导纯音听阈。
All the subjects sat in the standard audiometric room, the air and bone conducted pure-tone auditory thresholds were examined by the professional technician.
对两组治疗前、后纯音听阈和ABR检查结果进行统计学分析。
ABR and pure tune threshold shifts are tested before and after the treatment and analyzed statistically.
结论：早产儿矫正胎龄足月后脑干听觉功能和外周听阈无显著相关。
Conclusions: Brainstem auditory function does not closely correlate with peripheral auditory threshold at term in preterm infants.
结论TEOAE对中耳病变的诊断较纯音听阈测试、声导抗测试敏感。
Conclusion TEOAE is more sensitive than audiogram and acoustic immittance in the diagnosis of middle ear disorders.
大前庭导水管综合征纯音听阈可以有低范围的气骨导差，但原因不明。
An air-bone gap might exist in ATPT of LVAS at low frequencies, while the underlying cause remains unclear.
目的了解神经性渐进性耳鸣、耳聋患者的耳鸣响度与听阈提高速度的关系。
Objective To study the reaction between tinnitus volume and the ascending speed of auditory threshold in chronic nervous tinnitus patients.
结论多通道人工耳蜗植入患者语言频率声场听阈值达到了日常交谈的水平；
Conclusion The free field hearing threshold at language frequencies in the patients implanted with multi-channel cochlea could satisfy the need for daily conversation.
方法对50例压力性鼓膜穿孔患者的常频和扩展高频测听的听阈结果进行分析。
Methods 50 patients received standard pure - tone and extended high frequency audiometry for hearing measurement.
方法对50例压力性鼓膜穿孔患者的常频和扩展高频测听的听阈结果进行分析。
Methods 50 patients received standard pure-tone and extended high frequency audiometry for hearing measurement.
本文利用豚鼠研究了脉冲噪声和空气冲击波暴露后中耳声阻抗的变化和听阈偏移。
Acoustic impedance changes and hearing threshold shifts after exposure to impulse noise or air-blasts were studied in guinea pigs.
方法：测试在不同的噪声水平时听力正常的11名受试者感知听阈附近纯音的能力。
Methods: 11 subjects abilities to detect near threshold pure tone levels were measured in different noise free from hearing disorder.
在声场测听条件下，对17名儿童（33耳）进行助听前和助听后的声场听阈测试。
The present study has tested unaided and aided thresholds of 17 children (33 ears)in sound field.
结论：经听力初筛、复筛后未通过的婴幼儿，仍有约半数婴幼儿的听阈是在正常范围。
CONCLUSION: About half of the auditory thresholds in infants failed in the initial and secondary hearing screening are still in normal range.
接触噪声人群的闪声融合频率与听觉疲劳的重要指标暂时性听阈阈移有着明显的一致性。
There was significant consistency in transient auditory threshold shift, an important indicator of AFF and auditory fatigue.
目的了解噪声对飞行员畸变产物耳声发射(DPOAE)的影响及其与纯音听阈的关系。
Objective to investigate the effect of noise on DPOAE in pilots and its relation with pure tone auditory thresholds.
两年后，检测每个受试者暂时性听阈位移(tts)，并调查其植物神经功能紊乱症状。
Two years later, temporary threshold shift (TTS) was measured. In the meantime the symptoms of vegetative nerve functional disturbance were inquired.
这项在老鼠身上的实验显示这些药物在噪声暴露之后能够将永久性听阈位移降低五个分贝。
The experiments in mice showed that the drugs could reduce by about five decibels the permanent threshold shift that can occur after noise exposure.
找出刀具磨损信息在可听阈内的主要集中频段能提高切削声信号的信噪比，改善识别结果。
Finding out the major concentrated frequency band of tool-wear information can enhance SNR (Signal Noise Ratio) and improve tool-wear degree recognition result.
目的研究听觉稳态诱发反应（ASSR）和听性脑干反应（ABR）阈与纯音听阈的差别和相关性。
Objective To investigate the difference and relationship between auditory steady-state evoked response(ASSR threshold), auditory brain stem response(ABR threshold) and pure tone threshold.
结果表明：DPOAE可以准确地反映患耳相应的频率损失范围，其检出率和幅值与主观听阈水平有关。
The results indicated that DPOAE gram was accurate in reflecting the range of frequencies of injured ears; the amplitude and incidence of DPOAE were associated with pure-tone behavioral threshold.
在恢复过程中，DPOAE的幅值、检出阈也随听阈一起改善；听阈的恢复率高于幅值和检出阈的恢复率。
In the recovery course the amplitude and threshold of DPOAE were improved with the restoration of auditory threshold, but the restoring rate (RR) of auditory threshold was higher.
方法对120例耳源性眩晕患者进行纯音听阈测试，甘油试验，耳蜗电图，冷热水试验，前庭诱发肌源性电位检查。
Methods We conducted the pure tone audiology, glycerol test, electrocochleogram(ECochG) , water caloric test, vestibular evoked myogenic potentils(VEMP) in 120 aural vertigo patients.
利用实验室现有的简单设备组成实验装置，测定了正常的听阈曲线、有噪声干扰时的听阈曲线、 分散注意力时的听阈曲线。
The audiogram of pure tone, of noise and of distractive energy are obtained. The measuring device is composed of simple apparatus in lab.
方法30例受试者(60耳)分别进行纯音测听，首先测出双耳的纯音听阈，然后应用同频音掩蔽试验测试各个频率的MCML。
Methods the pure tone thresholds of 30 subjects (60 ears) were measured by pure tone audiometry and MCML was obtained by means of the same frequency tone masking test.
方法应用直线相关回归、逐步多元回归和协方差分析等统计学方法分析暂时性听阈位移与听阈、噪声强度、工龄、年龄等因素之间的关系。
Method Statistical methods of linear regression, multiple stepwised regression, two-way ANOVA were used to analysis the relation of TTS with audition, noise level, working-year and age.
目的应用同频音掩蔽试验观察不同个体最小对侧掩蔽级(MCML)与主观纯音听阈之间的关系，进而通过MCML判定被试者主观真实听阈。
Objective to investigate the relationship between minimum contralateral masking level (MCML) and pure tone threshold of the masking ears by the same frequency tone masking test.
目的应用同频音掩蔽试验观察不同个体最小对侧掩蔽级(MCML)与主观纯音听阈之间的关系，进而通过MCML判定被试者主观真实听阈。
Objective to investigate the relationship between minimum contralateral masking level (MCML) and pure tone threshold of the masking ears by the same frequency tone masking test.
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