| Frequency Selectivity Behaviour in the Auditory Midbrain： Implications of Model Study |
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| 引用本文： | 匡神兵,王嘉赋,曾婷.Frequency Selectivity Behaviour in the Auditory Midbrain： Implications of Model Study[J].中国物理快报,2006,23(12):3380-3383. |
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| 作者姓名： | 匡神兵 王嘉赋 曾婷 |
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| 作者单位： | Department of Physical Science and Technology, Wuhan University of Technology, Wuhan 430070 |
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| 基金项目： | Supported by the Key Project of the Ministry of Education of China under Grant No 106115. |
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| 摘 要： |
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| 关 键 词： | 听觉系统 中脑 耳蜗核 频率选择行为 数值模拟 |
| 收稿时间： | 2006-07-03 |
| 修稿时间： | 2006-07-03 |
Frequency Selectivity Behaviour in the Auditory Midbrain: Implications of Model Study |
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| KUANG Shen-Bing,WANG Jia-Fu,ZENG Ting.Frequency Selectivity Behaviour in the Auditory Midbrain: Implications of Model Study[J].Chinese Physics Letters,2006,23(12):3380-3383. |
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| Authors: | KUANG Shen-Bing WANG Jia-Fu ZENG Ting |
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| Affiliation: | Department of Physical Science and Technology, Wuhan University of Technology, Wuhan 430070 |
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| Abstract: | By numerical simulations on frequency dependence of the spiking threshold, i.e. on the critical amplitude of periodic stimulus, for a neuron to fire, we find that bushy cells in the cochlear nuclear exhibit frequency selec- tivity behaviour. However, the selective frequency band of a bushy cell is far away from that of the preferred spectral range in human and mammal auditory perception. The mechanism underlying this neural activity is also discussed. Further studies show that the ion channel densities have little impact on the selective frequency band of bushy cells. These findings suggest that the neuronal behaviour of frequency selectivity in bushy cells at both the single cell and population levels may be not functionally relevant to frequency discrimination. Our results may reveal a neural hint to the reconsideration on the busily cell functional role in auditory information processing of sound frequency. |
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| Keywords: | 87 19 Dd 87 10 +e 87 19 La |
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