刺激

The frequency of spontaneous UP/DOWN transitions could be entrained to a regular interval by repetitive sound stimuli with intervals ranging 3-12 sec, in which each sound stimulus effectively induced a UP-to-DOWN transition.

外界声音刺激（白噪声，0.1-35 KHz）能调制神经元自发的高电、低电位期的传递节律：当声音刺激落在高电位期时，每一次声音刺激都会使细胞膜电位由高电位期向低电位期转变，并当声音刺激间隔在3-12秒范围内时，自发的高、低电位期的转变节律就同步于声音刺激的重复率，即跟随效应。

When sucrose stimulability was given, small intestine peristasis rate in the rats of vagotomy was lowwer than that in the rat of control rats.

3建立CTA后的大鼠，口腔内给予蔗糖刺激或奎宁刺激时，迷走神经传出放电在刺激后即刻、刺激后30min、刺激后60min都比正常组有所增加。

This research was composed of three parts:in the first part, we observed the effect of CTA on small intestine peristalsis;in the sencond part, we observed the effect of sweet stimulability and bitter stimulability on discharge of vagus efferent never after CTA;in the three part,effect of CTA on c-Fos expressions in the brain nerve nucleus was observed.

结果：1给予蔗糖刺激时，CTA组大鼠小肠推进率与对照组相比差异显著，小肠推进率降低；在CTA组大鼠中，给予糖刺激的大鼠小肠推进率明显低于给予水刺激的大鼠。2给予正常大鼠蔗糖刺激时，切断迷走神经的大鼠的小肠推进率明显低于假手术组的。3建立CTA后的大鼠，口腔内给予蔗糖刺激或奎宁刺激时，迷走神经传出放电在刺激后即刻、刺激后30min、刺激后60min都比正常组有所增加。

Giving two equal-intense stimuli which is higher than the threshold stimulus and whose intervals are longer than the single twich period, two independent contracting curve can be observed. Giving two equal-intense stimuli which is higher than the threshold stimulus and whose intervals are longer than the refractory period, an additive-contracting curve can be observed. Giving several equal-intense stimuli which is higher than the threshold stimulus, tetanus curve can be observed.

当给予两个等强度的阈上刺激，且刺激的间隔大于单收缩的时程，在计算机中可以观察到两个独立的收缩曲线；当给予两个等强度的阈上刺激，且刺激的间隔小于单收缩的时程而大于不应期，在计算机中可以观察到两个收缩曲线的叠加，称为收缩的总和；当给予若干个等强度的阈上刺激，在计算机中就可以观察到强直收缩曲线。

In this study,intracellular recordings were performed and 34 neurons in MGC of Agrotis segetum were recorded;all those neurons responded to sex pheromone.12 neurons just tested by sex pheromone,and 22 neurons both tested by sex pheromone and electrical stimulation.

两种刺激方式均能诱导出兴奋反应，电刺激得到的兴奋反应比由性信息素刺激引起的要短；MGC神经元对两种刺激的超极化反应幅度影响没有显著性差别，在电刺激实验的2 2个神经元上，超极化反应幅度和抑制时间都与神经元本身放电频率有一定的相关性。

At the BCL of 500ms, 1000ms and 2000ms,the VWtimes increased markedly with the BCL prolonging, and the degree of increasing was even obviously when heart rate was slow (BCL=2000ms or 1000ms). The enlargement of VWs was a most important reason to increase the incidence of ventricular arrhythmias; 2）At the BCL of 500ms, 1000ms or 2000ms,the VWtimes of the premature stimulates S2 was at endomembrane were wider than at the outermembrane. We supposed that premature stimulates come from endomembrane was easier inducing VF compared with outermembrane;3The VWtime of unidirectional block was wider than reentry's, we can see that reporlarization dispersion changed dynamicly. 4The QRS polar of the premature stimulates was opposite the primary beats ,which suggesting that excitation of inducing premature beats was coming from epicardial. That is to say electrotonic potential take part in the creation of reentry;5With the ratio of the Tp-e/QT increasing the occurrence of VF was upgrading. So the ratio was an effective method to estimate the event of SCD.6 The VWtimes of S3 were broaden than S2's. But we can not study penetratingly, which is the contents of our future studies.

在BCL为500ms、 1000ms和2000ms刺激条件下，随着刺激周长的增加单向传导阻滞时间易损窗呈增大趋势；并且在心率较慢时(BCL为2000ms和1000ms)增大最明显，是LQTS患者室性心律失常发生率增加的原因之一；2）在BCL为500ms、 1000ms和2000ms刺激条件下，S2位于内膜侧时时间易损窗大于在外膜侧时的，推测来自于内膜侧的期前刺激易于诱发室性心律失常；3）折返激动时间易损窗小于在单向传导阻滞时间易损窗，折返易发生于S2刚进入单向传导阻滞区间时，这说明复极梯度的不均一是动态变化的；4心电图上倒置QRS波与正常S1刺激所引起QRS波极性相反，提示不同位置S2刺激引发的室性早搏的兴奋均来自于外膜侧，说明了电紧张电位扩布参与了折返的产生；5）Tp－e/QT可以反应跨膜复极离散度，随着Tp－e/QT比值的增加PVT的发生增多，其可以用来预测室性心律失常的发生。6）随着期前刺激数目的增加时间易损窗增大。

The results are as follows.(1) Long train electrical stimulation at the dMNF facilitated myoelectric activities of genioglossus and phrenic muscle.(2) Short train electrical stimulation of dMNF, when delivered in the inspiratory phase, caused prolongation of myoelectric activities of genioglossus and phrenic muscle; but when delivered in the expiratory phase, myoelectric activities of genioglossus and phrenic muscle were shortened.(3) Long train electrical stimulation at the vMNF inhibited myoelectric activities of genioglossus and phrenic muscle.(4) Short train electrical stimulation of vMNF caused shortening of myoelectric activities of genioglossus and phrenic muscle, when delivered in the inspiratory phase, but a prolongation when delivered in the expiratory phase.(5) The effects of microinjection of glutamate to dMNF and vMNF were similar to those of electrical stimulation.

结果如下：(1)长串电脉冲刺激dMNF引起颏舌肌和膈肌肌电活动明显增强；(2)短串电脉冲刺激dMNF，当刺激落位于吸气相时，引起颏舌肌和膈肌在吸气相的肌电活动延长，当刺激落位于呼气相时，引起颏舌肌和膈肌在呼气相的肌电活动提前终止；(3)长串电脉冲刺激vMNF使颏舌肌和膈肌肌电活动明显被抑制；(4)短串电脉冲刺激vMNF，当刺激落位于吸气相时，引起颏舌肌和膈肌在吸气相的肌电活动提前终止，当刺激落位于呼气相时，引起颏舌肌和膈肌在呼气相的肌电活动延长；(5)在dMNF和vMNF分别微量注射谷氨酸钠，其效应与电刺激结果基本一致。

Results Monopolar stimulation was used in 32 patients who underwent unilateral operation, while in 30 patients undergoing bilateral operations, 25 were stimulated by bipolar model, 2 by monopolar model, and 3 by monopolar stimulation in one side and bipolar in another side. Superior shift of electrode contact point was found in 7 cases.

结果 32例行单侧手术者均接受单极刺激；30例行双侧手术病人中，接受双侧双极刺激25例，双侧单极刺激2例，一侧单极刺激、另一侧双极刺激3例。7例触点调整均为上移。

We upgrated the Visual Motion Priming model proposed by Pantle, that means to insert a blank frame between priming and target. The goal is to explore the mechanism of visual motion priming in the brain. Method: Undergraduates on campus participated the experiments as paid volunter with normal or corelected normal version.

因此本实验对Pantle的视觉运动启动实验模式进行了改进，由特定运动方向的启动刺激引导靶刺激，在启动刺激与靶刺激之间加入一个空白阻断图片，从而打断启动——靶刺激的正常启动序列，目的是观察加入空白阻断图片，对于运动启动现象的影响以及对不同的视觉运动序列运动方向的影响。

The participants were instructed to press one button when they detected one type of the auditory deviant stimuli or visual deviants, and to press another button for standard stimuli in either of the two modalities.

听觉刺激包含标准刺激和三种偏差刺激，视觉刺激包含标准刺激和一种偏差刺激。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了