| 1. | Certain hair cells lining the cochlear ducts alongside auditory neurons are tuned to respond to specific frequencies
有些沿耳蜗管排列的毛细胞，紧邻著听神经元，经调整后专司特定频率。 |
| 2. | The opposite results were observed for eftcs and iftcs of corticofugally facilitated inferior collicular neurons
在下丘听神经元频率调谐方向敏感性的形成中， gaba能抑制有至关重要的作用。 |
| 3. | The topology of cfs in a - 1 indicated the rule of the neural projection from gmb to primary auditory cortex . the tuning curves of 34 neurons have been recorded and analyzed
听神经元cf分布的中文摘要一2一这种分域特性反映了从mgb到初级听皮层纤维投射的规律性。 |
| 4. | Q30 values of a - i neurons were within from 0 . 24 to 3 . 36 . the values of q30 can also increase with increasing of cfs of neurons , which indicated that the frequency range of acoustic response of a - 1 neurons widened with increasing of cfs of these neurons
值都有随着神经元cf增高而增大的趋势，这就表明在al区听皮层，随着听神经元cf的增高，神经元的频率选择性能越强，神经元低强度反应的频率响应范围也有增大的趋势。 |
| 5. | These data indicate that gabaergic inhibition makes an important contribution to the direction - dependent frequency tuning of most ic neurons . corticofugal modulation of the excitatory and inhibitory ftcs of most ic neurons was more pronounced at one sound direction than the other . sound direction effects on frequency tuning characteristics may undergo a postnatal development due to the development of excitation and inhibition integration
通过对幼年(出生后第四周)和成年蝙蝠下丘听神经元频率调谐的方向敏感性的比较，发现幼年蝙蝠频率调谐的方向敏感性比成年蝙蝠差，并认为可能是动物发育过程中，下丘的兴奋性和抑制性输入的整合也有一个发育的过程。 |
| 6. | The opposite results were observed for excitatory and inhibitory ftcs of corticofugally facilitated icc neurons . corticofugal inhibition increased sharpness , minimum threshold , and decreased the frequency - intensity response area of eftcs , at the same time it decreased the sharpness , minimum threshold but increased the frequency - intensity response area of iftcs
结果表明，声源方位对下丘听神经元频率调谐曲线的锐度、最低阈值有影响，多数神经元在记录部位同侧的频率调谐曲线的锐度比对侧大，最低阈值比对侧高。 |
| 7. | This study showed that the mt and sharpness of frequency tuning curves increased as the sound direction changed from contralateral to ipsilateral azimuthal angles . it suggests that sound direction effect on frequency tuning may be through the complex interplay between the excitatory and inhibitory inputs . the application of gaba ( a ) antagonist , bicuculline , lowered all mts but the application did not abolish direction - dependent variation in mt
听皮层的抑制性影响使大多数神经元在蝙蝠最敏感的声源方位c - 40的频率分辨能力明显提高，同时使c - 40和i - 40的最低阈值的差别进一步增大，提高了信噪比，提高下丘听神经元对声源方位和最佳频率的分辨能力。 |
| 8. | In attempt to directly compare the sound response characters of the same bf neurons or different bf neurons and their interactive relation , the double recording microelectrodes were penetrated into two different neurons in iso - frequnency laminas or hetero - frequency laminas . taking advantage of frequency tonotopical arrangement in 1c of bats , it was explored how the neurons integrated different parallel processes of the same sound information . in the case of which , we hoped to explore the relation between the sound response characters of the central auditory neurons and neural modulation in background noise for the further understanding of the mechanism in the central auditory neurons extracting sound signals
本研究以大棕蝠( bigbrownbat , eptesicusfuscus )为模型，利用ic声调组构排列成同频层这一结构特点，突破单电极记录和检测神经元的方法，同时推进两单电极至一个同频层或两个同频层的两个不同神经元，试图从细胞水平直接比较两个具有相同和不同最佳频率的神经元声信号的加工处理特征、以及它们之间的相互关系，以期窥探它们在对同一声信号处理过程中的整合奥秘，并以此为基础分析和探讨背景噪声条件下中枢神经元声反应特征与神经调制的关系，以期进一步了解中枢听神经元声信号提取的机制。 |
| 9. | ( 2 ) our experimental results have shown the topographycal distribution of the cfs of neurons in a - 1 . generally the neurons with high cfs laid in the rostral part of a - 1 , and the neurons with low cfs laid in its caudal part . the similar isofrequency strip was observed in a - i cortex
(二)大鼠皮层a区听神经元的特征频率( cf )分布具有分域特性， cf为高频的神经元分布在a区嘴侧， cf为低频的神经元分布在a区尾侧，实验还发现在a区的内外侧方向有类似的等频带存在。 |
| 10. | Corticofugal modulation of frequency tuning of inferior collicular neurons in big brown bat , eptesicus fuse us chinese science bulletin , 2000 in order to explore the possible mechanism of corticofugal modulation of excitatory frequency tuning curves ( eftcs ) of midbrain neurons , we examine the change of sharpness , frequency - intensity response area , minimum threshold of both eftcs and inhibitory frequency tuning curves ( iftcs ) of inferior coliicular neurons during corticofugal modulation using two - tone inhibition paradigm and micro - electrical stimulation technique
第二章大棕幅听皮层对中脑下丘听神经元频率调谐曲线的调制科学通报， 2000用双声刺激的方法和电刺激技术，进一步研究了在激活听皮层前后下丘听神经元兴奋性和抑制性频率调谐曲线的锐度、频率强度反应区域、最低阈值的协同变化 |
