Abstract：
:A motor alimentary conditioned reflex was elaborated in hippocampectomized and intact albino rats. Food reinforcement followed 100 percent, 50 percent, 33 percent or 25 percent of conditional stimulus presentations (click from a rotating food box). No differences were found in the rate of conditioned alimentary reflex elaboration between the hippocampectomized and control rats at 100 percent and 50 percent reinforcement, although the time-courses of formation of the conditioned reflex connection differed substantially. With low reinforcement probabilities (33 percent and 25 percent) the operated rats, unlike the intact ones, exhibited no adequate responses throughout the 10 experimental days. The results obtained corroborate an earlier suggestion that the hippocampus is involved in the organization of behavior the reinforcement probability of which is unknown or relatively low.
journal_name
Acta Neurobiol Exp (Wars)journal_title
Acta neurobiologiae experimentalisauthors
Pigareva MLsubject
Has Abstractpub_date
1974-01-01 00:00:00pages
423-33issue
3eissn
0065-1400issn
1689-0035journal_volume
34pub_type
杂志文章abstract：:Electrical activity of hippocampus was investigated in cats in the delayed response situation by comparing spectral analysis and integration of electrohippocampogram rhythms in different stages of delayed response performance. In addition, electrical stimulation of lateral and ventromedial hypothalamic nuclei was used...
journal_title：Acta neurobiologiae experimentalis
pub_type： 杂志文章
doi：
更新日期：1972-01-01 00:00:00
abstract：:The influence of bilateral injections of serotonin (5-HT) and methysergide (MET) to antero-medial hypothalamus (HA) on carbachol-induced emotional-defensive behavior was investigated. Earlier (15 min) stimulation of 5-HT receptors in HA region by 5-HT injections evoked a decrease in the level of vocal response (number...
journal_title：Acta neurobiologiae experimentalis
pub_type： 杂志文章
doi：
更新日期：1985-01-01 00:00:00
abstract：:Recent development of neuroimaging techniques has opened new possibilities for the study of the relation between handedness and the brain functional architecture. Here we report fMRI measurements of dominant and non-dominant hand movement representation in 12 right-handed subjects using block design. We measured possi...
journal_title：Acta neurobiologiae experimentalis
pub_type： 杂志文章
doi：
更新日期：2007-01-01 00:00:00
abstract：:We describe a method for generating and presenting olfactory stimuli in functional magnetic resonance imaging (fMRI) studies for humans. The olfactometer is based on principles of air dilution olfactometry and consists of a nasal mask and a nasal Continuous Positive Airway Pressure device, both normally used for patie...
journal_title：Acta neurobiologiae experimentalis
pub_type： 杂志文章,评审
doi：
更新日期：2004-01-01 00:00:00
abstract：:A simple amplitude discriminator with two ways of triggering DC-level monitoring is described. This system is based on easily available inexpensive integrated circuits. ...
journal_title：Acta neurobiologiae experimentalis
pub_type： 杂志文章
doi：
更新日期：1984-01-01 00:00:00
abstract：:The activity of the biceps brachii and lateral head of the triceps brachii were compared during the contact placing reactions elicited by tactile stimuli applied to the lateral, medial or dorsal aspects of the forepaw to verify the hypothesis that common movement strategy was used in all these reactions. Similar laten...
journal_title：Acta neurobiologiae experimentalis
pub_type： 杂志文章
doi：
更新日期：1993-01-01 00:00:00
abstract：:The acute cerveau isole rat shows spindle bursts of large amplitude alternating with low voltage activity in the frontal cortex and continuous theta rhythm in the dorsal hippocampus. These patterns closely resemble an "intermediate" stage of sleep-waking cycle, when the forebrain structures seem to be functionally dis...
journal_title：Acta neurobiologiae experimentalis
pub_type： 杂志文章
doi：
更新日期：1980-01-01 00:00:00
abstract：:Some aspects of the functional significance of sleep are considered. These involve studies on (i) the dynamics of electrical activity in the neo- and archi-paleocortical structures of the brain in the sleep-wakefulness cycle, (ii) the effect of selective deprivation of different sleep phases on the sleep-wakefulness c...
journal_title：Acta neurobiologiae experimentalis
pub_type： 杂志文章
doi：
更新日期：1977-01-01 00:00:00
abstract：:The pedunculopontine tegmental nucleus (PPN) is one of the reticular generators of the hippocampal theta rhythm. The PPN neuronal circuitry related to theta generation involves its cholinergic, GABA-ergic and glutamatergic components. Here we provide data indicating that the PPN tachykinin system may also be a part of...
journal_title：Acta neurobiologiae experimentalis
pub_type： 杂志文章
doi：
更新日期：2005-01-01 00:00:00
abstract：:A subdivided path in the visual field usually appears longer than an empty path of the same length. This phenomenon, known as the filled/empty or Oppel-Kundt illusion, depends on multiple properties of the visual stimulus, but the functional dependences have not been yet precisely characterized. We studied the illusor...
journal_title：Acta neurobiologiae experimentalis
pub_type： 杂志文章
doi：
更新日期：2010-01-01 00:00:00
abstract：:There have been four major pioneers from Eastern Europe in the neuroscientific study of memory and learning: Pavlov, Bekhterev, Beritashvili and Konorski. The thinking of each evolved with the progress of neuroscientific knowledge throughout the world, and save for Pavlov, each encountered governmental opposition to t...
journal_title：Acta neurobiologiae experimentalis
pub_type： 传,历史文章,杂志文章
doi：
更新日期：2006-01-01 00:00:00
abstract：:The mechanisms involved in avoidance behavior are discussed. It is assumed that the conditioned stimulus (CS) activates the memory pattern of associations related to the former applications of the unconditioned stimulus (US) and, as a result, produces an undesirable sensory state. This activates another memory pattern...
journal_title：Acta neurobiologiae experimentalis
pub_type： 杂志文章,评审
doi：
更新日期：1980-01-01 00:00:00
abstract：:The intranuclear membranaceus inclusions (IMI) appear as encapsulated irregular vacuoles surrounded by a single, rarely double, membrane. The vacuoles include floccular, fine granular content or they are translucent. They were found in neurones of particularly old or very young laboratory animals. Our studies concerni...
journal_title：Acta neurobiologiae experimentalis
pub_type： 杂志文章
doi：
更新日期：1992-01-01 00:00:00
abstract：:The objective of this study was to verify hypothesised changes in event related potentials (visual mismatch negativity, vMMN) in 17 subjects dependent on methamphetamine (MAMP) compared to age and gender matched 17 healthy volunteers. We found a significant correlation between vMMN and duration of methamphetamine abus...
journal_title：Acta neurobiologiae experimentalis
pub_type： 杂志文章
doi：
更新日期：2008-01-01 00:00:00
abstract：:This mini review gives a brief overview over the oxidation mechanism of methionine (Met), relevant for processes which may lead to the oxidation of amyloid beta-peptide (betaAP), involved in the pathogenesis of Alzheimer's disease. The Cu(II) -catalysed oxidation of C-terminal Met35 in betaAP depends on the secondary ...
journal_title：Acta neurobiologiae experimentalis
pub_type： 杂志文章,评审
doi：
更新日期：2003-01-01 00:00:00
abstract：:Synapsins are a family of proteins associated with synaptic vesicles that are widely used as markers of synaptic terminals. We decided to investigate synapsin I expression in the mouse primary somatosensory cortex (SI). Immunostaining experiments using a polyclonal antibody against C-terminal domain of synapsin Ia/b (...
journal_title：Acta neurobiologiae experimentalis
pub_type： 杂志文章
doi：
更新日期：2003-01-01 00:00:00
abstract：:Temporal information processing controls many aspects of human mental activity and may be assessed by examining perception of temporal order in the tens of milliseconds time range. Although existing studies suggest an age-related decline in mental abilities, the data on the deterioration of temporal order perception s...
journal_title：Acta neurobiologiae experimentalis
pub_type： 杂志文章
doi：
更新日期：2008-01-01 00:00:00
abstract：:In laboratory rats an epileptic-like spontaneous neocortical activity in the form of bursts of spike and wave discharges (SWD) develops gradually with age. High incidence of the SWD episodes is accompanied by other indices characteristic of advanced age: memory disturbances and atrophic changes within basal forebrain ...
journal_title：Acta neurobiologiae experimentalis
pub_type： 杂志文章
doi：
更新日期：1995-01-01 00:00:00
abstract：:It is well-known that the cholinergic system and the muscarinic cholinergic receptors are associated with cognitive functions. Here we examined whether a non-selective muscarinic receptor antagonist scopolamine affects learning performance and/or synaptic plasticity during the memory consolidation period. Adult male W...
journal_title：Acta neurobiologiae experimentalis
pub_type： 杂志文章
doi：
更新日期：2014-01-01 00:00:00
abstract：:Connnections of the cortical region situated in the medial and lateral walls of the presylvian fissure in the dog were investigated using the method of retrograde HRP transport. The patterns of subcortico-cortical and cortico-cortical projections sho,w that the cortical field of the medial presylvian wall (paraorbital...
journal_title：Acta neurobiologiae experimentalis
pub_type： 杂志文章
doi：
更新日期：1984-01-01 00:00:00
abstract：:Discrimination learning of instrumental responses to auditory compound stimuli was investigated in opossums using the R-no R (go-no go) differentiation. Each compound stimulus consisted of two factors: quality and location. Each correct response performed to the conditioned positive, or "safe" stimulus, was rewarded b...
journal_title：Acta neurobiologiae experimentalis
pub_type： 杂志文章
doi：
更新日期：1996-01-01 00:00:00
abstract：:Signal integration in neurons is a complex process that depends on e.g. the kinetics of synaptic currents, distribution of synaptic connections as well as passive and excitatory membrane properties. The time course of synaptic currents is largely determined by the kinetics of the postsynaptic receptors and the time co...
journal_title：Acta neurobiologiae experimentalis
pub_type： 杂志文章,评审
doi：
更新日期：2008-01-01 00:00:00
abstract：:In four dogs instrumental defensive conditioned reflexes to direct electrical stimulation of the hippocampus were elaborated. After reaching 60 percent CR performance, unreinforced stimulations of several limbic structures were given to test generalization. Positive generalization was more frequent than negative one. ...
journal_title：Acta neurobiologiae experimentalis
pub_type： 杂志文章
doi：
更新日期：1981-01-01 00:00:00
abstract：:Anxiety is a complex psychological state which happens after stressful life experiences. Many factors such as daily life events, neurotransmitter systems, and different brain areas could influence anxiety behavior in humans and animals. For example, opioids and androgens decrease anxiety behavior both in humans and an...
journal_title：Acta neurobiologiae experimentalis
pub_type： 杂志文章
doi：
更新日期：2020-01-01 00:00:00
abstract：:Dogs were trained to perform an instrumental avoidance reflex of lifting and holding a limb above a pre-determined level to prevent or to interrupt painful stimulation of the same limb. A tone preceding the stimulation by 0.5 s served as the CS. During the CS the excitability of the motoneuronal pools involved in the ...
journal_title：Acta neurobiologiae experimentalis
pub_type： 杂志文章
doi：
更新日期：1973-01-01 00:00:00
abstract：:Disturbances of enteric nerve-mediated anorectal evacuation mechanisms have medical and social impact. The study aimed at further eliciting the contribution of cholinergic and nitrergic neurotransmission systems to modular nerve networks in different regions of Wistar rat anorectum. Electrical field stimulation (EFS, ...
journal_title：Acta neurobiologiae experimentalis
pub_type： 杂志文章
doi：
更新日期：2012-01-01 00:00:00
abstract：:Correct reaction probability and minimum exposition time in visual form discrimination task were studied under the conditions of varying pattern parameters. The minimal exposition time depended on pattern contrast and pattern background ratio and on the number of screen position variations. However, it remained unchan...
journal_title：Acta neurobiologiae experimentalis
pub_type： 杂志文章
doi：
更新日期：1978-01-01 00:00:00
abstract：:In monkeys, cerebellar vermal cortical or fastigial nuclear lesion resulted in no significant postural asymmetry. Combined decerebration (but not bulbar pyramid section) and unilateral vermal cortical or fastigial nuclear lesion gave marked ipsilateral hyperextension and contralateral hyperflexion of limbs. Unilateral...
journal_title：Acta neurobiologiae experimentalis
pub_type： 杂志文章
doi：
更新日期：1978-01-01 00:00:00
abstract：:In normal dogs a differentiation task consisting of lifting the left or right foreleg in response to the tactile stimuli administered to the left or right side of the body respectively is very difficult, requiring from 500 to 1,000 trials. On the contrary the same task presented to other dogs after transection of the ...
journal_title：Acta neurobiologiae experimentalis
pub_type： 杂志文章
doi：
更新日期：1973-01-01 00:00:00
abstract：:The evoked cardiac response (ECR) may be described as the sum of two independent response components: an initial HR deceleration (ECR1) and a slightly later acceleration (ECR2) hypothesized to reflect stimulus registration and cognitive processing load, respectively. This study investigated processing load effects in ...
journal_title：Acta neurobiologiae experimentalis
pub_type： 杂志文章
doi：
更新日期：2009-01-01 00:00:00
