Objective: This study investigated and compared the effects of tone burst in three different conditions ( linear gated tone burst, linear gated tone burst in broadband noise masking and Blackman gated tone burst) on the frequency specificity of ABR. 目的:观察比较线性窗短纯音、加宽频带噪声掩蔽的线性窗短纯音及Blackman窗门控短纯音对听性脑干反应(ABR)频率特异性的影响。
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。