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利用脑电磁图示(MEG)的方法对听觉诱发磁场(AEFs)与由自相关系数(ACF)以及由双耳互相关系数(IACF)中导出的因子的关系加以检验.首先,检验ACF,(?)的峰值对AEFs的影响,发现音调的强度与(?)良好相关,而当刺激开始后大约100ms时在左右颞叶上发现的N1m的振幅则随(?)的增加而增大.此结果表明较强声调感的声音导致N1m幅值的增加.此外,对IACC以及τ_(IACC)对AEFs的作用也加以检验,发现人类侧向声音定位的能力随IACC的减小而变差.当IACC为0.95时,N1m幅值随τ_(IACC)的增加而增加,而当IACC为0.5时,τ_(IACC)对N1m幅值的作用不显著.此结果表明侧向声音定位的能力可由N1m的幅值来反映.
The relationship between auditory-induced magnetic fields (AEFs) and those derived from the auto-correlation coefficient (ACF) and from the binaural cross-correlation coefficient (IACF) was examined using the electroencephalogram (MEG) method.Firstly, ACF, ?) Peaked at AEFs and found that the intensity of the tone correlated well with (?), Whereas the amplitude of N1m found on the left and right temporal lobes increased with increasing (?) At about 100 ms after the start of stimulation The results show that the stronger tone of the sound led to N1m amplitude.In addition, IACC and τ_ (IACC) on the AEFs were also tested and found that the ability of human lateral sound localization with IACC decreases. When IACC is 0.95, the amplitude of N1m increases with the increase of τ_ (IACC), while the effect of τ_ (IACC) on amplitude of N1m is not significant when the IACC is 0.5.The results show that the lateral sound localization ability can be calculated from N1m Amplitude to reflect.