Jain M, Gallagher D T, Koehnke J, Colburn H S
Department of Biomedical Engineering, Boston University, Massachusetts 02215.
J Acoust Soc Am. 1991 Oct;90(4 Pt 1):1918-26. doi: 10.1121/1.401671.
Results are reported from a series of binaural detection and interaural correlation discrimination experiments at 500 Hz. The experiments include fringed correlation discrimination in which the correlation change is restricted to a narrow (38 Hz) target band of frequencies and the reference correlation is maintained in a fringe band of frequencies. This experiment is designed to be analogous to a detection experiment with a narrow-band target; in both cases the correlation changes only inside the target band. A simplified theoretical framework is used to compare the results of the detection and correlation discrimination experiments. Results are consistent with the notion that binaural detection and interaural correlation discrimination are effected by a common mechanism when the reference correlation is unity (as in the NoS pi case). When the reference correlation is zero (as in the NuSo case), detection performance is significantly better than predicted from the measured ability to discriminate interaural correlation.
报告了一系列在500赫兹下进行的双耳检测和耳间相关性辨别实验的结果。这些实验包括带条纹相关性辨别，其中相关性变化被限制在一个狭窄（38赫兹）的目标频率带内，而参考相关性则保持在一个频率条纹带内。该实验旨在类似于一个具有窄带目标的检测实验；在这两种情况下，相关性仅在目标带内变化。使用一个简化的理论框架来比较检测和相关性辨别实验的结果。结果与以下观点一致：当参考相关性为1时（如在NoS pi情况下），双耳检测和耳间相关性辨别受共同机制影响。当参考相关性为0时（如在NuSo情况下），检测性能明显优于根据测量的辨别耳间相关性的能力所预测的结果。
