Møller A R
Audiology. 1978 Sep-Oct;17(5):446-68. doi: 10.3109/00206097809072607.
The results presented in the present paper show that single nerve cells in the cochlear nucleus have different discharge patterns in response to tones whose frequency varies rapidly compared to tones with slowly varying frequency. Moreover, small, rapid changes in the intensity of a tone are reproduced in such a way that a modulation of a few decibels can give rise to a nearly 100% modulation in the discharge pattern. Amplitude modulation is reproduced in the discharge pattern of these neurons throughout a large intensity range, in many units more than 70 dB. This intensity range is much larger than the intensity range where the mean discharge rate is a function of the sound intensity, meaning that changes in frequency as well as in intensity are enhanced in these units. Though no doubt but a small part of the processing that occurs in the cochlear nucleus, such information seems likely to be extracted somewhat differently by different neurons.
本文给出的结果表明，与频率缓慢变化的音调相比，耳蜗核中的单个神经细胞对频率快速变化的音调有不同的放电模式。此外，音调强度的微小、快速变化会以这样一种方式再现，即几分贝的调制就能使放电模式产生近100%的调制。在这些神经元的放电模式中，幅度调制在很大的强度范围内都会再现，在许多单元中超过70分贝。这个强度范围比平均放电率是声音强度函数的强度范围大得多，这意味着这些单元中频率和强度的变化都得到了增强。尽管这无疑只是耳蜗核中发生的处理过程的一小部分，但不同的神经元似乎可能以某种不同的方式提取此类信息。
