Brantberg K, Hansson H, Fransson P, Rosenhall U
Department of Audiology, Karolinska Hospital, Stockholm, Sweden.
Audiol Neurootol. 1999 Mar-Apr;4(2):88-94. doi: 10.1159/000013825.
The effect of unilaterally delayed acoustic stimuli on binaural interaction was studied in 12 subjects with normal hearing. Auditory brainstem response (ABR) was obtained in the midline between the forehead and the neck, and click stimuli were unilaterally delayed at 0.2-ms intervals in the 0- to 1-ms range. Binaural interaction was evaluated by measuring the beta wave in the binaural difference waveform, i.e. the remainder after subtracting the binaurally evoked registration from the sum of the two monaural registrations. Computation of the binaural difference waveform showed the beta wave amplitude to be relatively stable throughout the 0- to 1-ms range of interaural time differences. This finding suggests stable binaural interaction within the range of interaural time differences where binaural click stimuli induce a binaurally fused intracranial image.
在12名听力正常的受试者中研究了单侧延迟听觉刺激对双耳交互作用的影响。在额头与颈部之间的中线位置获取听觉脑干反应（ABR），并在0至1毫秒范围内以0.2毫秒的间隔对单侧点击刺激进行延迟。通过测量双耳差异波形中的β波来评估双耳交互作用，即从两个单耳记录之和中减去双耳诱发记录后的余数。双耳差异波形的计算表明，在双耳时间差的0至1毫秒范围内，β波幅度相对稳定。这一发现表明，在双耳点击刺激诱发双耳融合颅内图像的双耳时间差范围内，双耳交互作用是稳定的。
