皮层脑电图

MethodsⅠMaximal electroshock seizure was adopted to analyse the relative of dose and effect, relative of time and effect, including maximal efficacy and potency of these five extractives in mice given by ig administration.ⅡMetrazol seizure test was used to compare seizure latency, anticonvulsant rate and mortality of mice with every extractives.ⅢPharmacodynamic parameters of five alcoholic extractives were assayed by means of Pharmacological Effective Method.ⅣUsing the model of seizure rats induced by penicillin localized injected in cortex,we studied the effect of extractives on seizure latency, frequency of epileptiform discharge, highest wave of hippocampus EEG(Recoded by RM6240C multichannel physiological signal collection and analysis recorde), the changes of convulsant behaviors and the latency of seizure.

方法①采用最大电休克惊厥模型，分析灌胃小鼠各药的量效和时效关系，比较其效价强度和效能；②采用戊四唑惊厥模型，比较ig小鼠各药的惊厥潜伏期、抗惊厥率和死亡率；③采用药效法，运用数学模式及参数来模拟各药在体内的药效动力学过程；④制备大鼠皮层定位注射青霉素点燃模型，采用RM6240C型多道生理信号采集处理系统记录脑电图，比较ig各药对痫性发作潜伏期及发作程度、痫性放电潜伏期、痫波发放频率及最高波幅的影响；⑤采用HPLC法测定海马区癫痫相关递质的含量，比较各药对Glu、Asp、Gly、GABA的影响。

Objective To explore the effect of Levetiracetam on Electrocorticogram of epileptic rats induced by lithium-Pilocarpine.

目的 探讨左乙拉西坦对匹鲁卡品癫癎动物模型皮层脑电图的作用。

Electrocorticogram is a kind of non-stationary signal. Feature extraction and classification are crucial for good ECoG based brain-computer interface.

皮层脑电图信号(electrocorticogram， ECoG)非平稳，如何提取有效的特征，设计恰当的分类器是ECoG脑－机接口研究的关键问题。

Brain is a very complex non-linear system, and electroencephalograph and electrocorticogram are also non-stationary and nonlinear in nature, signal processing methods based on linear and stationary assumptions, although has obtained important result, can not grasp the entire picture of neuroscience.

人脑是一个高度复杂的非线性非平稳系统，所以脑电图和皮层脑电图也是非线性非平稳信号，基于线性和平稳假设的分析方法尽管取得了一些重要的研究成果，但是无法对神经系统进行更加深入的解释。

Feature extraction and classification are crucial for good electrocorticogram based brain-computer interface.

皮层脑电图脑-机接口（electrocorticogram based brain-computer interface， ECoG-BCI）研究的关键是提取良好的特征获得理想的分类精度。

Methods By the comprehensive application of the imaging examination, EEG, electrocorticogram, PET-CT and image fusion techniques, the epilepsy focus was precisely located,and the psychologic status was evaluated before and during operation, 35 patients with refractory epilepsy were treated surgically.

综合运用影像学、脑电图、PET-CT、脑功能皮层定位检查和偶极子定位与磁共振融合等方法，对35例难治性癫痫患者进行癫痫灶定位和外科手术治疗，并进行手术前后心理状况评估。

METHODS: After instrumentation with arterial and sagittal-sinus cannulae, electrocorticogram, and sagittal sinus Doppler flow measurement seven adult sheep were given a random sequence of short anesthetic infusions with methohexital, ketamine, and propofol.

斦otilde；法：7只羾，先在每只羾身举安置徨脉和失羶窦导管，脑皮层电图和失羶窦超声血流分析仪，然后随机给予小剂量的异丙酚，美索比托和氯胺酮进行短时间麻醉，同时采取多个血样标本和脑电图变化来评估药效。

MethodsUnder the conditions of constant temperature, constant humidity, auto-light and electromagnetic shielding, we gave experimental rats suanzaoren decoction at different doses and adopted chronicity electrode embedment technology to trace the EEG of hypodermal layer of freerunning rats , which rececived electric stimulation.

方法在恒温、恒湿、自动光控及电磁屏蔽条件下，给予实验动物不同剂量酸枣仁汤，采用慢性电极埋植技术描记电刺激所致失眠大鼠自由活动情况下的皮层脑电图。

Objective To record the electroenciphalogram in hippocampus or parietal cortex and then compare them in epileptic rats kindled by kainic acid microinjection into nucleus amygdalae.

目的：记录和比较海人酸杏仁核点燃癫痫大鼠海马和顶叶皮层脑电图。

Methods 26 cases of cavernous angiomas with uncontrolled seizures,16 of them were operated in opening stereotactic microsurgery by CT guidance and to apply the electrocorticographyto record the spike wave before resecting the focus and record again after resecting it.

方法26例顽固性癫痫病例，MRI示脑内海绵状血管瘤(直径在0.5～2.5cm)，视频脑电图检查诊断与MRI定位一致。10例采用常规显微手术切除，16例利用立体定向技术，放置硅胶管引导显微手术切除病灶，辅助皮层脑电图监测确认致痫灶切除。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。