Rawool V W
Bloomsburg University, PA, USA.
Scand Audiol. 1996;25(4):239-45. doi: 10.3109/01050399609074961.
This study was designed to monitor acoustic reflexes during the type of stimulation used in the auditory brainstem measures. Twenty normal female subjects within the age range 20 to 26 years participated in the study. The probe tone frequency was 226 Hz and the intensity was 85 dB SPL. Approximately 1000 clicks were presented to the right ear through an insert earphone and acoustic reflexes were monitored in the left ear. The clicks were presented at 95 and 105 dB peSPL and at 50 and 100/sec rates. At the rate of 50/sec, the acoustic reflex was present in 70% of the subjects at 95 dB peSPL and in 85% of the subjects at 105 dB peSPL. At the rate of 100/sec, the reflex was present in 80% of the subjects at 95 dB peSPL and in 95% of the subjects at 105 dB peSPL. The ANOVA on the acoustic reflex amplitudes showed an increase in the amplitudes with an increase in the click rates and levels.
本研究旨在监测在听性脑干测量中所使用的刺激类型期间的听觉反射。20名年龄在20至26岁之间的正常女性受试者参与了该研究。探测音频率为226Hz，强度为85dB SPL。通过插入式耳机向右耳呈现约1000次点击声，并监测左耳的听觉反射。点击声以95和105dB peSPL以及50和100次/秒的速率呈现。在50次/秒的速率下，95dB peSPL时70%的受试者出现听觉反射，105dB peSPL时85%的受试者出现听觉反射。在100次/秒的速率下，95dB peSPL时80%的受试者出现反射，105dB peSPL时95%的受试者出现反射。对听觉反射幅度进行的方差分析显示，随着点击速率和强度的增加，幅度增大。
