Pantev C, Elbert T, Ross B, Eulitz C, Terhardt E
Center of Biomagnetism, University of Münster, Germany.
Hear Res. 1996 Oct;100(1-2):164-70. doi: 10.1016/0378-5955(96)00124-4.
The auditory system derives the pitch of complex tones from the tone's harmonics. Research in psychoacoustics predicted that binaural fusion was an important feature of pitch processing. Based on neuromagnetic human data, the first neurophysiological confirmation of binaural fusion in hearing is presented. The centre of activation within the cortical tonotopic map corresponds to the location of the perceived pitch and not to the locations that are activated when the single frequency constituents are presented. This is also true when the different harmonics of a complex tone are presented dichotically. We conclude that the pitch processor includes binaural fusion to determine the particular pitch location which is activated in the auditory cortex.
听觉系统从声音的谐波中得出复合音的音高。心理声学研究预测双耳融合是音高处理的一个重要特征。基于人类神经磁学数据，首次给出了听觉中双耳融合的神经生理学证实。皮质音调定位图内的激活中心对应于所感知音高的位置，而不是呈现单个频率成分时被激活的位置。当复合音的不同谐波以双耳分听的方式呈现时，情况也是如此。我们得出结论，音高处理器包括双耳融合，以确定在听觉皮层中被激活的特定音高位置。
