Neirofiziologiia = Neurophysiology最新文献_第6页

[Effect of penicillin on the synaptic activity of isolated spinal cord motor neurons in the lamprey]. 青霉素对七鳃鳗离体脊髓运动神经元突触活性的影响。

Neirofiziologiia = Neurophysiology Pub Date : 1992-01-01

I V Batueva, N P Veselkin, R Veskov

引用次数: 0

Neirofiziologiia = Neurophysiology Pub Date : 1992-01-01

S L Kertser

引用次数: 0

[Structural changes induced by diethyl ether in cultured neuroblastoma cells]. [乙醚诱导培养神经母细胞瘤细胞的结构变化]。

Neirofiziologiia = Neurophysiology Pub Date : 1992-01-01

P G Klering, A Makarenko, N Kh Pogorelaia

引用次数: 0

[Muscle stretching and unloading reflexes during cortically evoked movements in unanesthetized cats]. [未麻醉猫在皮质诱发运动中的肌肉伸展和卸载反射]。

Neirofiziologiia = Neurophysiology Pub Date : 1992-01-01

A I Kostiukov, A N Tal'nov

{"title":"[Muscle stretching and unloading reflexes during cortically evoked movements in unanesthetized cats].","authors":"A I Kostiukov, A N Tal'nov","doi":"","DOIUrl":"","url":null,"abstract":"Extension and flexion cortically-evoked movements (CEMs) were studied in the framework of the experimental approach developed in the previous paper [5]. Movements in the elbow joint of an unanesthetized cat were evoked by intracortical microstimulation (ICMS) applied to the motor cortex, then they were tested using a torque disturbance method. Similarity of flexion and extension CEMs allowed producing their combined quantitative analysis and comparing the obtained characteristics with those defined for the movements which were evoked by direct stimulation of the biceps and triceps muscles in an anesthetized animal. Resulting stiffness and uncertainty index (UI) served as the main characteristics of the movement in the presence of torque disturbances. Depending on the relationship between the directions of the preceding movement and the initial phase of the disturbed one, CEMs were divided into two types: coinciding (1) and opposing (2) CEMs. When the preceding movement was evoked by switching on of ICMS, both types of the disturbed movements could be considered as realizations of the phasic myotatic reflexes: unloading (1) and stretch (2). Disturbed movements of type 1 were characterized by the narrow range of mean values of UI: 0.43-0.91 (1.2 Hz wave of torque disturbance) and 0.24-0.73 (3.2 Hz). Transition to type 2 enlarged sharply the spread in the means, they could be both positive and negative, variances of UI in separate realizations significantly increased as well. It is supposed that intensity of central processes controlling the disturbed movements is mainly connected with changes in their direction but not with the movement per se.","PeriodicalId":19121,"journal":{"name":"Neirofiziologiia = Neurophysiology","volume":"24 3","pages":"330-9"},"PeriodicalIF":0.0,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12682327","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

[Slow changes in the membrane potential of superior cervical ganglion neurons of the rabbit, evoked by painful stimulation of the skin]. [皮肤疼痛刺激引起的兔颈上神经节神经元膜电位的缓慢变化]。

Neirofiziologiia = Neurophysiology Pub Date : 1992-01-01

I N Remizov, S A Kosheleva, V I Skok

引用次数: 0

[Distribution of GABA-immunoreactive elements in the reptile amygdaloid complex]. [gaba免疫反应因子在爬行动物杏仁核复合物中的分布]。

Neirofiziologiia = Neurophysiology Pub Date : 1992-01-01

M G Belekhova, D D Chkheidze, N P Veselkin, N B Kenigfest, I L Kratskin, Zh P'err, Zh Reperan

引用次数: 0

[The pain sensitivity of the skin in chronic psychoemotional stress in man]. [慢性精神情绪应激中皮肤的疼痛敏感性]。

Neirofiziologiia = Neurophysiology Pub Date : 1992-01-01

I Ia Ashkinazi, V A Ishinova, E M Tsirul'nikov

引用次数: 0

[The activity of myelinated nerve fibers to heat and burn exposures of the skin]. [有髓神经纤维对皮肤热和烧伤的反应]。

Neirofiziologiia = Neurophysiology Pub Date : 1992-01-01

G I Malysheva, D N Sander, E G Smirnova

引用次数: 0

[Responses of medullary and spinal neurons to simultaneous stimulation of two locomotor points]. [同时刺激两个运动点的髓质和脊髓神经元的反应]。

Neirofiziologiia = Neurophysiology Pub Date : 1992-01-01

V A Selionov, M L Shik

引用次数: 0

[Effects of "non-quantal" acetylcholine on the sensitivity of the postsynaptic membrane: action of ouabain and imitation of these effects by exogenous acetylcholine]. [“非量子”乙酰胆碱对突触后膜敏感性的影响:乌阿巴因的作用和外源性乙酰胆碱对这些作用的模仿]。

Neirofiziologiia = Neurophysiology Pub Date : 1992-01-01

R A Giniatullin, T I Oranskaia, R N Khazipov

{"title":"[Effects of \"non-quantal\" acetylcholine on the sensitivity of the postsynaptic membrane: action of ouabain and imitation of these effects by exogenous acetylcholine].","authors":"R A Giniatullin, T I Oranskaia, R N Khazipov","doi":"","DOIUrl":"","url":null,"abstract":"Development of postsynaptic potentiation (PSP) and desensitization (DS) caused by \"non-quantal\" acetylcholine after acetylcholinesterase inhibition was studied by means of ouabain, an agent known to modulate (initially increase and then decrease) the level of non-quantal secretion of ACh. Ouabain had no effect on the MEPC parameters when AChE was active. After AChE inhibition ouabain initially increased the decay time constant of MEPC (tau), i.e. caused postsynaptic potentiation (PSP). This effect of ouabain grew with time between inhibition of AChE and application of ouabain. The PSP stage was followed by shortening of MEPCs decay, due to the development of desensitization (DS), and that process was more pronounced than in control. Applied before AChE inhibition, ouabain had no effect on tau. Thus neither PSP nor DS developed under those conditions. Exogenous ACh (20 nmol/l) applied simultaneously with inhibitor of AChE partially prevented the shortening of MEPCs decay, but decreased the amplitude of MEPC. Applied after MEPCs shortening, exogenous ACh (50 nmol/l) tended to return the initial value of tau. It is concluded that nonquantal ACh produces PSP and DS on the postsynaptic membrane after inhibition of ACh and that the DS persists after cessation of nonquantal secretion for a long time.","PeriodicalId":19121,"journal":{"name":"Neirofiziologiia = Neurophysiology","volume":"24 4","pages":"396-404"},"PeriodicalIF":0.0,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12607011","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0