论文标题
关于神经计算的精确性，内侧橄榄的室内时间差异
On the precision of neural computation with interaural time differences in the medial superior olive
论文作者
论文摘要
传入的声音在耳蜗中，听觉神经编码为尖峰火车。在听觉途径的第三个神经元上，左侧和右侧的尖峰列在脑干核中进行处理，以产生声音定位信息。两个不同的定位编码机制用于两个中心，用于脑干中的低声音和高声频率。这些中心是上橄榄核，内侧和侧面。本文包含对声音定位神经回路中听觉编码所需的参数的分析估计。我们的模型尖峰火车基于电生理记录。我们通过使用理想观察者的明显差异来获得神经元信号传导的最佳估计。我们描述了尖峰的计时抖动及其在尖峰火车处理中的作用。所有参数都伴随着其值和可变性的详细估计。讨论了从较低值和更高值界定所有参数的间隔。
Incoming sound is in cochlea and auditory nerve encoded into spike trains. At the third neuron of the auditory pathway, spike trains of the left and right sides are processed in brainstem nuclei to yield sound localization information. Two different localization encoding mechanisms are employed in two centers for low and high sound frequencies in the brainstem. The centers are superior olivary nuclei, medial and lateral. This paper contains analytical estimates of parameters needed in description of auditory coding in sound localization neural circuit. Our model spike trains are based on electro-physiological recordings. We arrive to best estimates for neuronal signaling with the use of just noticeable difference of the ideal observer. We describe spike timing jitter and its role in the spike train processing. All parameters are accompanied with detailed estimates of their values and variability. Intervals bounding all the parameter from lower and higher values are discussed.
