Neirofiziologiia = Neurophysiology最新文献_第4页

[Mechanoreceptor system of the respiratory center and its role in the control of respiration]. [呼吸中枢机械感受器系统及其在呼吸控制中的作用]。

Neirofiziologiia = Neurophysiology Pub Date : 1992-01-01

V B Fenik

引用次数: 0

[Neocortex neuronal reactions induced by substantia innominata stimulation in cats]. [猫的新皮层神经元反应由无名物质刺激引起]。

Neirofiziologiia = Neurophysiology Pub Date : 1992-01-01

V M Storozhuk, L E Ziniuk

{"title":"[Neocortex neuronal reactions induced by substantia innominata stimulation in cats].","authors":"V M Storozhuk, L E Ziniuk","doi":"","DOIUrl":"","url":null,"abstract":"Neuronal impulse activity in the sensorimotor cortex after Substantia Innominata (SI) stimulation has been studied in cats during conditioned placing with food reinforcement. SI stimulation was delivered 1 or 3 seconds before the conditioned sound stimuli. The results of the investigation show that SI stimulation does not change sensorimotor cortex impulse activity but at the same time it inhibits the background activity. Reactions of 32% (after 1 s) and 33% (after 3 s) of the somatosensory cortex neurones were increased to conditioned stimuli and conditioned movement after preliminary SI stimulation. The appearance of impulse responses in some neurones which showed no initial reactions to conditioned stimuli was caused by SI stimulation. Preliminary SI stimulation may cause not only excitatory but also inhibitory effect on somatosensory cortical neurones. In case of 1 s interval between SI stimulation and conditioned stimuli presentation there were only 6% of cells with such inhibition, but in case of 3 s interval there were 33% of such reactions. SI stimulation shortened the latencies of the conditioned movement 2-3 times. Modulatory influence of acetylcholine from SI neurones to neocortical activity is discussed.","PeriodicalId":19121,"journal":{"name":"Neirofiziologiia = Neurophysiology","volume":"24 1","pages":"11-20"},"PeriodicalIF":0.0,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12751949","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

[Effect of parathyroid hormone on 45Ca2+ absorption in various rabbit tissues]. [甲状旁腺激素对兔各组织45Ca2+吸收的影响]。

Neirofiziologiia = Neurophysiology Pub Date : 1992-01-01

D N Khudaverdian, S K Kishoian, A A Asratian, A K Gambarian, G A Gevorkian

引用次数: 0

[Role of direct and feedback inhibition in the effect of "priming" in hippocampus slices]. [直接抑制和反馈抑制在海马切片“启动”效应中的作用]。

Neirofiziologiia = Neurophysiology Pub Date : 1992-01-01

A M Kleshchevnikov, V V Kitsello

{"title":"[Role of direct and feedback inhibition in the effect of \"priming\" in hippocampus slices].","authors":"A M Kleshchevnikov, V V Kitsello","doi":"","DOIUrl":"","url":null,"abstract":"Field potentials (FP) were recorded from radial and pyramidal layers of the mice hippocampus after conditioning and testing stimulations of the Schaffer collaterals. The effect of a preliminary conditioning stimulus on the tested responses (the \"priming\" effect) was studied for different testing intensities and interstimulus intervals of 50 to 5000 ms. Two series of experiments were conducted. In the first series the influence of the conditioning stimulus delivered with the interval of 200 ms on the testing stimuli of various intensities was studied. The duration of the testing FP in the radial layer was measured. The plot of the FP duration against the stimulus strength revealed three regions. For the first region (at small stimulus intensities) the FP duration was maximal and independent on the stimulus intensities. The second region began at the point where FP duration reduced presumably due to the feed-forward inhibition. The conditioning stimulus caused a widening (recovery) of the FP due to suppression of the inhibition. In the third region the stimulus intensity was sufficient to excite pyramidal cells and therefore to activate the feed-back inhibition. The time course of the FP was contaminated by the population spike and FP duration became inadequate for the evaluation of the \"priming\" effect. The second set of the experiments was aimed to study possible changes in the feed-back inhibition. With this end in view the influence of the conditioning (priming) procedure on the paired-pulse depression was studied. The main effect of the conditioning was a suppression of the paired-pulse depression, i.e. a suppression of the feed-back inhibition.(ABSTRACT TRUNCATED AT 250 WORDS)","PeriodicalId":19121,"journal":{"name":"Neirofiziologiia = Neurophysiology","volume":"24 2","pages":"178-85"},"PeriodicalIF":0.0,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12765044","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

[Sources of cortical, hypothalamic and spinal serotoninergic projections: topical organization in the dorsal Raphe nucleus]. [皮层、下丘脑和脊髓5 -羟色胺能投射的来源:中缝背核局部组织]。

Neirofiziologiia = Neurophysiology Pub Date : 1992-01-01

V N Kazakov, P Ia Kravtsov, E D Krakhotkina, V A Maĭskiĭ

{"title":"[Sources of cortical, hypothalamic and spinal serotoninergic projections: topical organization in the dorsal Raphe nucleus].","authors":"V N Kazakov, P Ia Kravtsov, E D Krakhotkina, V A Maĭskiĭ","doi":"","DOIUrl":"","url":null,"abstract":"Distribution of primuline, fast blue, fluoro-gold and nuclear yellow-labelled monoamine-containing cells in periventricular gray and dorsolateral tegmentum (including locus coeruleus) was studied in the rat after injection of these fluorochromes into the frontal cortex, hypothalamus and spinal cord. Combination of monoamine fluorescence method and retrograde cell-labelling was used. Two big groups of serotonin-positive cells projecting into the upper thoracic spinal segments were found in dorsomedial zone of the dorsal raphe. Part of these units also had divergent axon projections to the frontal cortex. Such cellular arrangement allows a supposition that analgetic effects of dorsal raphe stimulation can be partially based on the direct participation of this structure in the descending control at the spinal level. Neurones, sources of cortical projections are intermingled with the cells projecting to the hypothalamus but some topical differentiation can be distinguished. Neurotransmitter and neuroregulatory roles of separate cortical and hypothalamic projections of serotonin-containing neurons of the dorsal raphe cells is discussed.","PeriodicalId":19121,"journal":{"name":"Neirofiziologiia = Neurophysiology","volume":"24 1","pages":"87-96"},"PeriodicalIF":0.0,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12751242","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

[Effect of exogenous acetylcholine on potassium currents of motor nerve endings in the frog]. 外源性乙酰胆碱对蛙运动神经末梢钾电流的影响。

Neirofiziologiia = Neurophysiology Pub Date : 1992-01-01

A L Zefirov, D M Shakir'ianova

引用次数: 0

International Symposium of the USSR-West Germany on "Biological Membranes.". 苏联-西德“生物膜”国际研讨会。

Neirofiziologiia = Neurophysiology Pub Date : 1992-01-01

BerkhratskiĭAN

引用次数: 0

[Serotonin-induced changes in the responses of electrically stimulated neuronal membrane of the mollusk]. [5 -羟色胺引起的软体动物电刺激神经元膜反应的变化]。

Neirofiziologiia = Neurophysiology Pub Date : 1992-01-01

Z G Mamedov, G G Gasanov, T T Gulieva