Albeck Y, Nebenzahl I, Lewis A
Division of Applied Physics, Hebrew University of Jerusalem, Israel.
J Acoust Soc Am. 1992 Sep;92(3):1389-93. doi: 10.1121/1.403932.
It is shown that a simple cross-correlation model is not adequate to explain both binaural masking level difference (MLD) and spatial selective attention. The reason is that for a low-intensity signal in NoS(pi) condition the maximal activity in the binaural analyzer as a function of interaural delay in single spectral channel is independent of signal intensity. On the other hand, if detection ability is associated with the isolation of tonically firing units, MLD is simply explained as the increase in firing synchronization as a function of the signal's interaural phase difference (IPD). Quantitatively results are presented based on numerical solutions of the model.
结果表明，简单的互相关模型不足以解释双耳掩蔽级差（MLD）和空间选择性注意。原因在于，在NoS(pi)条件下，对于低强度信号，单一声谱通道中双耳分析器的最大活动作为耳间延迟的函数与信号强度无关。另一方面，如果检测能力与持续放电单元的隔离相关，MLD可以简单地解释为放电同步性随信号耳间相位差（IPD）的增加。基于该模型的数值解给出了定量结果。
