| 鼠耳蝠下丘听神经元对超声刺激的反应特性 |
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| 引用本文： | 周晓明,孙心德.鼠耳蝠下丘听神经元对超声刺激的反应特性[J].华东师范大学学报(自然科学版),1997(2):90-94. |
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| 作者姓名： | 周晓明 孙心德 |
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| 作者单位： | 华东师范大学生物学系!上海，200062，华东师范大学生物学系!上海，200062 |
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| 摘 要： | 实验在５只鼠耳蜗上进行，共观察了２２７个对超声刺激发生反应的下丘听神经元。这些神经元听反应的最佳频率在１４．３－７６．２ｋＨｚ之间；潜伏期在３．０－１２．０毫秒之间，多数神经元（７９．３％）为５．０－７．０毫秒；最低阈值位于－２０．０－７０．０ｄＢ ＳＰＬ之间；多数神经元（８２．０５％）的调谐曲线为宽阔型，少数（１７．９５％）为狭窄型；反应最佳频率沿下丘背腹轴呈明显有序地排列。
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| 关 键 词： | 鼠耳蝠 下丘 听神经元 蝙蝠 超声刺激反应 |
Auditory Response Properties of Inferior Collicular Neurons of FM Bat, Myotis chinensis |
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| Zhou Xiaoming, Sun Xinde.Auditory Response Properties of Inferior Collicular Neurons of FM Bat, Myotis chinensis[J].Journal of East China Normal University(Natural Science),1997(2):90-94. |
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| Authors: | Zhou Xiaoming Sun Xinde |
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| Abstract: | The experiment was performed on 5 FM bats, Myotis chinensis. Acoustically evokedresponses of 227 inferior collicular neurons to pure tone stimuli were examined usingelectrophsiological technique. The best frequencies of these neurons were between 14.3 and 76.2kHz. Response latencies ranged from 3.0 to 12.0 ms, but most (79.30%) were between 5.0 and7.0 ms. Minimum thresholds were between-20.0 and 70.0 dB SPL. Most tuning curves of these.neurons were broad and it was obvious that the best frequencies distributed along thedorsoventral axis of inferior colliculus. |
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| Keywords: | Myotis chinensis inferior colliculus auditory neuron response property |
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