{"title":"[Mikhail Nikolaevich Livanov].","authors":"I N Knipst, T A Korol'kova, A N Lebedev","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":24031,"journal":{"name":"Zhurnal vyssheĭ nervnoĭ deiatelnosti imeni I P Pavlova","volume":" ","pages":"517-9"},"PeriodicalIF":0.3,"publicationDate":"2007-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40415876","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}
N M Khonicheva, L M Livanova, S G Tsykunov, T A Osipova, M V Loriia, A G Elbakidze, V P Tikhonov, M G Aĭrapetiants
{"title":"[Blood testosterone in rats: correlation with individual anxiety and its derangement after the \"death threat\"].","authors":"N M Khonicheva, L M Livanova, S G Tsykunov, T A Osipova, M V Loriia, A G Elbakidze, V P Tikhonov, M G Aĭrapetiants","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>After preliminary testing on a multiparameter scale, test and experimental groups of Wistar male rats were formed on the principle of identical distribution of individuals with different anxiety levels. A negative Spearman correlation between the testosterone blood concentration and the level of anxiety was observed in intact rats: the minimum hormonal concentrations (lower than 5 nmol/l) were found in rats with high anxiety, whereas the maximum concentrations (up to 16 nmol/l) corresponded to the higher anxiety level (prevalence of passive defense reactions during testing). After a sort-term exposure to life-threatening situation (viewing of a boa's attacking and devouring two victim rats from the test group), the correlation was deranged because of appearance of a scatter in testosterone blood concentration (from 3 to 21 nmol/l) in rats with low anxiety. Neurotization with inescapable pain stimulation also deranged the initial anxiety-testosterone correlation, but, as distinct from the exposure to life-threatening situation, eliminated individual differences in testosterone concentration at its low level. The results suggest the existence of multiple ways of adaptation to life-threatening situations in a rat population.</p>","PeriodicalId":24031,"journal":{"name":"Zhurnal vyssheĭ nervnoĭ deiatelnosti imeni I P Pavlova","volume":" ","pages":"591-7"},"PeriodicalIF":0.3,"publicationDate":"2007-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40835004","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}
S Iu Budilin, I S Midzianovskaia, N V Shchegolevskiĭ, M E Ioffe, A S Bazian
{"title":"[Asymmetry in the dopamine content in the nucleus accumbens and the motor preference in rats].","authors":"S Iu Budilin, I S Midzianovskaia, N V Shchegolevskiĭ, M E Ioffe, A S Bazian","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>A number of published studies reported a correlation between the paw preference in mice and asymmetry of tissue concentrations of dopamine (DA) and DA metabolites measured in the nucleus accumbens (NAcb) the DA concentration being higher in the nucleus ipsylateral to a preferred paw. This study aimed to investigate whether such asymmetry existed in rats. The paw preference was defined by reaching into a small horizontal tube for a food pellet. Tissue concentration of DA was measured by high-performance liquid chromatography with electrochemical detection. It was shown that the DA concentration in the left NAcb was significantly higher in \"left-handed\" rats than in \"right-handed\" animals. Within the group of \"right-handers\", the DA concentration was significantly higher in the right NAcb than in the left NAcb. The results confirm in part the experimental data obtained in mice and support the hypothesis that the paw preference is paralleled by elevated tissue DA in the ipsylateral NAcb of rodents.</p>","PeriodicalId":24031,"journal":{"name":"Zhurnal vyssheĭ nervnoĭ deiatelnosti imeni I P Pavlova","volume":" ","pages":"598-603"},"PeriodicalIF":0.3,"publicationDate":"2007-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41060574","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}
{"title":"[Motivation effect on power changes in the brain biopotentials in the figurative and verbal creativity tasks].","authors":"O M Razumnikova, N V Vol'f, I V Tarasova","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Effect of extrinsic motivation stimulating the most original problem solving during verbal and figurative divergent thinking was studied by EEG mapping. The righthanded university students (27 males and 26 females) participated in the experiments. An instruction \"to create the most original solution\" as compared to condition with an instruction \"to create any solution\" induced an increase in the baseline power of the alpha 1 and alpha 2 rhythms most pronounced in the posterior cortex. Task-related desynchronization of the alpha rhythms was higher but the beta-2 synchronization was lower after the former than after the latter instruction. Differences in the asymmetry of the alpha 1 and alpha 2 rhythms in the parietal and temporal regions of hemispheres suggested the right hemisphere dominance in intrinsic alertness and evoked activation related to divergent thinking. The findings were common and gender-independent in both figurative and verbal tasks suggesting a generalized influence of extrinsic motivation on creative activity.</p>","PeriodicalId":24031,"journal":{"name":"Zhurnal vyssheĭ nervnoĭ deiatelnosti imeni I P Pavlova","volume":" ","pages":"553-61"},"PeriodicalIF":0.3,"publicationDate":"2007-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40834998","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}
{"title":"[Activation and inhibitory types of brain neuronal sinchronisation: genesis and functional significance].","authors":"G I Shul'gina","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The generalization of studies of the systemic work of cortical neurons during the information processing initiated in Livanov's laboratory allows us to make the following conclusions in terms of the modem state of the problem. In different brain structures, there is a considerable degree of correlation between neuronal activities and slow potential oscillations. In the state of rest or deep extinction, the synchronization of brain neurons increases by the inhibitory type. In the active state of the brain, the degree of neuronal synchronization increases by the activation type. Both processes are determined by the involvement of the whole brain inhibitory or activation systems, respectively. A relative augmentation of inhibitory processes results in a restriction of information transmission in the cortex and prevents its fixation in memory of the system. A decrease in inhibition facilitates the excitation thransmission in the interconnected brain structures. Synchronous convergence of ordered polse flows ensures the information fixation during learning.</p>","PeriodicalId":24031,"journal":{"name":"Zhurnal vyssheĭ nervnoĭ deiatelnosti imeni I P Pavlova","volume":" ","pages":"533-40"},"PeriodicalIF":0.3,"publicationDate":"2007-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41059548","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}
L B Osadchuk, I N Salomacheva, A V Bragin, A V Osadchuk
{"title":"[The reproductive correlates of social hierarchy in laboratory male mice].","authors":"L B Osadchuk, I N Salomacheva, A V Bragin, A V Osadchuk","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>In laboratory male mice the effects of social hierarchy on hormonal and spermatogenic testicular function, accessory organs and testicular weights, sexual behaviour have been investigated using an experimental model of social hierarchy, which is characterised by a minimal size (two male mice) and 5 days period of social interactions. The social rank of the partners was detected by asymmetry in aggressive behaviour. Using the experimental condition, when the both partners have no preferences for exclusive use of area we demonstrated that there were no rank differences in the number of mounts and testicular testosterone content. Nevertheless a rank asymmetry in the male sniffing behaviour towards a receptive female, weights of the testes, seminal vesicles, epididymes and the number of epididymal sperm was kept up in a stable social group. Social dominance was found to affect negatively on testicular testosterone increase in response to introduction of a receptive female and sexual attractiveness of male to a receptive female in both dominant and subordinate males. The results obtained demonstrate the impact of social hierarchy on reproduction in laboratory male mice, particular in respect of spermatogenesis and the testicular testosterone in response to a receptive female.</p>","PeriodicalId":24031,"journal":{"name":"Zhurnal vyssheĭ nervnoĭ deiatelnosti imeni I P Pavlova","volume":" ","pages":"604-12"},"PeriodicalIF":0.3,"publicationDate":"2007-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40835002","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}
{"title":"[Mechanisms of the of perception of written speech].","authors":"W Budohoska, A Grabowska","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":24031,"journal":{"name":"Zhurnal vyssheĭ nervnoĭ deiatelnosti imeni I P Pavlova","volume":" ","pages":"202-8"},"PeriodicalIF":0.3,"publicationDate":"1982-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"35217882","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}
{"title":"[Ability of Corvidae to operate with the empirical dimensions of figures after destruction of the Wulst and archicortex].","authors":"Z A Zorina, B A Dashevskiĭ, I B Fedotova","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":24031,"journal":{"name":"Zhurnal vyssheĭ nervnoĭ deiatelnosti imeni I P Pavlova","volume":" ","pages":"357-9"},"PeriodicalIF":0.3,"publicationDate":"1982-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"35219754","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}
{"title":"[Effect of the motor cortex on heterogeneous afferent flows in the mediodorsal nucleus of the thalamus].","authors":"A G Poliakova","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>In experiments carried out on cats anaesthetized with Nembutal evoked potentials were recorded in the thalamic mediodorsal (MD) nucleus and in the projection and motor cortical areas with local cooling of the latter and the use of either single or paired stimuli of the same or different modalities. Visual and somatic excitatory inflows to the MD have been established, involving signals of specific and reticular genesis. Coming by separate ways they form isolated populations of neurones in the MD. A facilitating modulating influence of MD has been defined on the realization of afferent bursts produced in the motor cortex by visual and, particularly, somatic stimuli. It was found that in spite of its polyfunctionality, the motor cortex specifically influences heterogeneous inflows to the MD, exerting a more intensive and different action on the somatic afferentation as compared with the visual one. It is assumed that the specific and direct influence of the motor cortex on these impulses is exercised due to a functional subdivision of its corticofugal pathway into separate subsystems.</p>","PeriodicalId":24031,"journal":{"name":"Zhurnal vyssheĭ nervnoĭ deiatelnosti imeni I P Pavlova","volume":" ","pages":"300-9"},"PeriodicalIF":0.3,"publicationDate":"1982-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"35357093","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}
{"title":"[Evoked potentials of the sensomotor cortex upon formation of a conditioned reflex to electric stimulation of the ventromedial nucleus of the hypothalamus].","authors":"V M Serdiuchenko","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":24031,"journal":{"name":"Zhurnal vyssheĭ nervnoĭ deiatelnosti imeni I P Pavlova","volume":" ","pages":"236-42"},"PeriodicalIF":0.3,"publicationDate":"1982-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"35218424","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}