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

[Viscerosomatic convergence on the lumbar interneurons of the dorsal horn of the spinal cord in cats and rats]. [猫和大鼠脊髓背角腰椎中间神经元的脏器体会聚]。

Neirofiziologiia = Neurophysiology Pub Date : 1992-01-01

S A Kasparov

{"title":"[Viscerosomatic convergence on the lumbar interneurons of the dorsal horn of the spinal cord in cats and rats].","authors":"S A Kasparov","doi":"","DOIUrl":"","url":null,"abstract":"It is shown in experiments on spinalized cats under electrical stimulation of the pelvic nerve branch innervating the rectum as well as of the fibular nerve that 12 of 30 studied neurons to which the effect of these sources was converged were activated both by A- and by C-fibers. Reactions on stimulation of the fibular nerve were, apparently, mediated by the fibers with the conduction velocity not less than 2.2 m/sec. It is detected in experiments on spinalized rats that tension of the lower sections of the large intestine may evoke activation of neurons of the IV-V layers and inhibition of cells from the deeper layers. The inhibition evoked by the visceral stimulation in seven cases from 18 was provided by the effect directly on the postsynaptic membrane of these cells, in 11 cases it was localized in presynaptic (relative to them) structures. Naloxone, strychnine and atropine did not eliminate this inhibition which testifies against possible participation of opioids, glycines and acetylcholine in its creation. phaclofen, a blocker of the GABAB-receptors was also uneffective while bicuculline suppressed this inhibition in three cases from 12 which testifies to a probability of its participation in creation of GABAA-receptors.","PeriodicalId":19121,"journal":{"name":"Neirofiziologiia = Neurophysiology","volume":"24 1","pages":"3-11"},"PeriodicalIF":0.0,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12490405","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

[The role of skin reception in controlling movements]. [皮肤接收在控制运动中的作用]。

Neirofiziologiia = Neurophysiology Pub Date : 1992-01-01

K S Predtechenskaia

{"title":"[The role of skin reception in controlling movements].","authors":"K S Predtechenskaia","doi":"","DOIUrl":"","url":null,"abstract":"Skin receptors have been studied in the aspect of diverse phenomenology of their participation in organization of motor activity: from the protective flexor reflex to fine correcting effects from the skin which covers the muscle and the tendon. Analysis of the character of exteroceptive effects on reflector responses, cyclic motions and arbitrary activity has revealed a distinct determination of the effect, its dependence on localization and intensity of the exteroceptive stimulus, a moment of its application (state of motor centres) and so on. It is shown that the proprioceptive correction of the motion which underlies the ring control of the motion is inevitably added by exteroceptive effects incorporated into the same system due to their convergence to the same neuronal mechanisms. Basic moments of neuronal organization and basic mechanisms of sensory (exteroceptive) correction of motor activity are considered. Proceeding from the results of the author's investigations, the role of the premotor zone (the ventral horn, L6,7) interneurons which are not connected initially with afferents in the processes of sensomotor interaction in polysynaptic ways to the motoneuron is determined. It is supposed that these neurons integrate already selected information and form a discrete premise to output systems.","PeriodicalId":19121,"journal":{"name":"Neirofiziologiia = Neurophysiology","volume":"24 5","pages":"611-25; discussion 633-5"},"PeriodicalIF":0.0,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12606602","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

[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