助手标题  
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
   电活动 在 生物学 分类中 的翻译结果: 查询用时:0.04秒
图标索引 在分类学科中查询
所有学科
生物学
基础医学
中药学
中医学
神经病学
药学
生物医学工程
精神病学
消化系统疾病
更多类别查询

图标索引 历史查询
 

电活动
相关语句
没有找到相关双语例句
例句
为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。
  electric activity
Effects of Pineal-Gland Peptides on the Electric Activity of Pinealocytes in Rats
      
Sprouting and Electric Activity Parameters of the Rat Sensorimotor Cortex after Damaging a Symmetric Part of the Contralateral H
      
The Biphasic Effect of L-DOPA on the Electric Activity of an Isolated Dopaminergic Neuron
      
Rearrangements of the Total Electric Activity of the Cerebral Cortex and Subcortical Structures in Experimental Hypoxia
      
The degree of the changes in electric activity is correlated with the decrease in oxygen tension in the arterial blood.
      
更多          
  electric activities
Differential effects of dopamine on pain-related electric activities in normal rats and morphinistic rats
      
Effect of acetylcholine on pain-related electric activities in hippocampal CA1 area of normal and morphinistic rats
      
Nonperiodical sustained fluctuations of electrical potential are characteristic of the rhythms of cortical electric activities.
      
Motor and electric activities of the feline esophagus were detected before and after vagotomy by use of intraluminal pressure detectors and chronically implanted platinum electrodes.
      
  electrical activity
Neurotoxic Effects of Fullerenes on the Electrical Activity of Surviving Sections of the Rat Brain Olfactory Cortex
      
Electrical Activity of the African Catfish Clarias gariepinusduring Ontogeny
      
Pulse Electrical Activity of the Statocyst Receptors of the Snail Helix lucorumExposed to Weightlessness at the Orbital Space St
      
The S* waves separating the uncharged medium and a gas with high electrical activity in the presence of an electrical field were studied in [3].
      
Electrical activity of the triceps surale muscle under static load in patients with chronic peripheral circulatory insufficiency
      
更多          


In cat under the influence of a suitable combination of anesthetic and convulsant, e.g. chloralose and semicarbazide, both click and flash elicited electrical response in extensive regions of the cerebral cortex. Making use of the response in the sensorimotor cortex as the indicator, the nervous pathways mediating the productions of such response were analysed. The initial complex positive phase of the electric response in the sensorimotor cortex elicited by a click showed three distinct wavelets having latencies...

In cat under the influence of a suitable combination of anesthetic and convulsant, e.g. chloralose and semicarbazide, both click and flash elicited electrical response in extensive regions of the cerebral cortex. Making use of the response in the sensorimotor cortex as the indicator, the nervous pathways mediating the productions of such response were analysed. The initial complex positive phase of the electric response in the sensorimotor cortex elicited by a click showed three distinct wavelets having latencies of 8-9, 18-20 and 30-35 msecs respectively, the 2nd and 3rd wavelets being much larger than the 1st. The response persisted essentially unchanged after complete bilateral destruction of the auditory cortex, but disappeared completely after bilateral destruction of the medial geniculate bodies(MG). Conversely direct stimulation of MG elicited a response in the sensorimotor cortex practically the same as that called forth by a click. When the regions around the thalamic nuclei ventralis medialis(VM) and ventralis anterior(VA) were destroyed, the 2nd and 3rd wavelets of the response disappeared together. The 1st wavelet appeared to be a subcortical event electrically spread to the cortex, as it could be still picked up from the white matter after the removal of the cortex. Under the same experimental conditions the response set up in the sensorimotor cortex by a flash of light in comparison with that elicited by a click, appeared to have a longer latency of 29-33 msec. Three suscessive positive wavelets could also be distinguished in this response, although the separation of these wavelets was not always as distinct as in the case of auditory stimu- lation. The second and the third wavelets had a latency of about 38-42 msec. and 48-52 msec. respectively. Complete bilateral removal of the visual cortices decreased the size of the response and increased its latency. However, even in the complete absence of the visual cortices, stimulation of the lateral geniculate body(LG) could elicit essentially the same electrical response in the sensorimotor cortex as usually called forth by a flash of light, apart from the difference in latency. Analogously as in the case of auditory stimulation, bilateral destruction of LG caused a complete disappearance of the response to the flash. An amount of destruction in the region of VA and VM such as sufficient to abolish completely the 2nd and 3rd wavelets of the response due to a click, usually also greatly diminished the 2nd and 3rd wavelets of the response to a flash, leaving the 1st wavelet practically unaffected. This 1st wavelet in the response to a flash, like the 1st wavelet in the response to a click, was also due to thalamic activity electrically spread to cortex. Our general conclusion regarding the irradiation of auditory and visual impulses to the sensorimotor cortex as indicated by the kind of responses being studied is that the pathways involved are basically subcortical, the chief routes being from the geniculate bodies via the thalamic diffuse projection system. However, the effective working of the subcortical pathways may require varying degrees of facilitation from the cortex. Results such as that the removal of the visual cortex decreased the size and lengthened the latency of the response of the sensorimotor cortex to the photic stimulus, may be interpreted on this basis.

用适当剂量的麻醉剂和兴奋剂(如氯醛醣和胺基脲)混合处理的貓,短声和闪光均能在大脑皮层引起分布广泛的电反应。我们用运动区的电反应作为指标,分析了产生此反应的神经路径基础。短声在运动区激起的电反应包括三个正相的小波,潜伏期分别为8—9,18—20及30—35毫秒。除去两侧皮层听区对各波无甚影响,毁两侧内膝体则各波均消失。刺激内膝体在运动区引起的电反应舆短声引起的一样,只是潜伏期略短。毁丘脑(氵弥)散投射系统的VA,VM一带,第二及第三波即告消失。至於第一波,吸去皮层运动区後在白质上仍可引到,是皮层下的电活动波及到皮层的结果。在闪光所引起的电反应裹,也可分辨得出三个正相的小波,其潜伏期分别为29—33,38—42及48—52毫秒,但一般各波间分界不明。除去两侧皮层视区,反应即不易出现,且潜伏期增长,但此时刺激外膝体仍可恒定地引起和在视区存在时闪光所引起的同样的反应(仅潜伏期缩短)。毁外膝体,各波均消失。毁VA,VM一带,第二第三波大为减小,第一波不受影响。第一波亦同样为皮层下电流扩布的结果。概言之,我们所形容声和光在皮层运动区引起的电反应,是内膝体和外膝体兴奋丘脑(氵弥)散投射系统的结果,但皮层听区或视...

用适当剂量的麻醉剂和兴奋剂(如氯醛醣和胺基脲)混合处理的貓,短声和闪光均能在大脑皮层引起分布广泛的电反应。我们用运动区的电反应作为指标,分析了产生此反应的神经路径基础。短声在运动区激起的电反应包括三个正相的小波,潜伏期分别为8—9,18—20及30—35毫秒。除去两侧皮层听区对各波无甚影响,毁两侧内膝体则各波均消失。刺激内膝体在运动区引起的电反应舆短声引起的一样,只是潜伏期略短。毁丘脑(氵弥)散投射系统的VA,VM一带,第二及第三波即告消失。至於第一波,吸去皮层运动区後在白质上仍可引到,是皮层下的电活动波及到皮层的结果。在闪光所引起的电反应裹,也可分辨得出三个正相的小波,其潜伏期分别为29—33,38—42及48—52毫秒,但一般各波间分界不明。除去两侧皮层视区,反应即不易出现,且潜伏期增长,但此时刺激外膝体仍可恒定地引起和在视区存在时闪光所引起的同样的反应(仅潜伏期缩短)。毁外膝体,各波均消失。毁VA,VM一带,第二第三波大为减小,第一波不受影响。第一波亦同样为皮层下电流扩布的结果。概言之,我们所形容声和光在皮层运动区引起的电反应,是内膝体和外膝体兴奋丘脑(氵弥)散投射系统的结果,但皮层听区或视区可能对皮层下的传导发生易化作用。

~~

实驗在5只成年中国产猕猴(Macaca Mulatta)身上进行。利用在条件反射实驗前不足以引起皮层誘发电位的弱閃光刺激,結合以前肢皮肤电刺激建立条件反射。实驗証明,在条件反射形成的初期和消退过程中,同样強度的弱閃光刺激能在大脑皮层枕叶和頂叶引起明显誘发电位,它的出現早于前肢的条件运动反应。在条件反射巩固之后,弱閃光不再明显地引起誘发电位,而在条件刺激时只有皮层自发电位的去同步化出現,或者甚至不出現大脑皮层电活动的显著变化。

(1) Activities due to various neural structures in the lateral geniculate body of the cat were studied by means of glass capillary microelectrode. These structures are the presynaptic axon and various parts of the postsynaptic neuron. Aside from the usual forms of the response of these structures, less usual forms were described. Single and repetitive stimulations of the optic nerve by electrical shocks were employed as a means of differentiating pre- and post-synaptic response. (2) In substantiating a view...

(1) Activities due to various neural structures in the lateral geniculate body of the cat were studied by means of glass capillary microelectrode. These structures are the presynaptic axon and various parts of the postsynaptic neuron. Aside from the usual forms of the response of these structures, less usual forms were described. Single and repetitive stimulations of the optic nerve by electrical shocks were employed as a means of differentiating pre- and post-synaptic response. (2) In substantiating a view expressed by some workers, further evidence has been adduced to indicate that activity due to a single optic nerve fibre is capable of initiating postsynaptic discharge. However, the readiness of different neurones to fire upon the arrival of impulses from the optic tract is quite variable. In general, this variability is due not so much to the smallness of excitatory synaptic potential initiated as to the condition imposed by the mixed action of both excitatory and inhibitory input. (3) Two steps in the generation of the postsynaptic spike could be dissociated by experiment using two antidromic shocks. This offers a direct proof that the two steps are respectively generated by the initial segment of the axon and the neuron soma proper.

(一)本工作采用玻璃微电极分析了猫外膝体神經結构的电活动。一般說,突触前軸突和突触后神經原不同部分的活动,均有一定的特性,不难加以区別,但是对某些少見的情况,单个或重复电刺激祝神經仍然不失为有效的鉴別突触前和突触后活动的手段。 (二)本文提供了实驗,說明单根祝神經紆維的传入冲动,就其本身所引起的突触电位大小而言,足以引起突触后神經原发放,但是实际上能否引起突触后传导的反应,对不同的神經原和在不同的情况,有很大的差別。这些差別,主要是由于兴奋性和抑制性輸入同时作用的結果。 (三)外膝体神經原峯电位的两个成分能用二个逆行刺激的方法加以分离,这表明它們是分別在軸丘和細胞体发生的。

 
<< 更多相关文摘    
图标索引 相关查询

 


 
CNKI小工具
在英文学术搜索中查有关电活动的内容
在知识搜索中查有关电活动的内容
在数字搜索中查有关电活动的内容
在概念知识元中查有关电活动的内容
在学术趋势中查有关电活动的内容
 
 

CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社