Abstract:
:The role of pretectum and colliculus superior in the analysis of visual information was studied. Single unit responses to visual stimuli were recorded. Several types of responses were observed, including "suppressed by contrast", "direction non-sensitive" and "direction sensitive" responses. An attempt was made to define the place and mechanism of direction-sensitivity of the cell. The conclusion is put forward that horizontal cells in the first layers of retina are not responsible for direction-sensitivity. Detailed analysis of receptive field structure revealed "homogeneous" and "heterogeneous" types of receptive fields as shown by response patterns of the neuron to a flashing light spot positioned in different parts of the receptive field. Study of latency distributions also revealed both complex "heterolatent" and more simple "homolatent" organizations of receptive fields The effect of the intensity of background illumination was investigated. Results show that changing of the background illumination can influence the response pattern of a cell, and sometimes can influence the direction-sensitivity.
journal_name
Acta Neurobiol Exp (Wars)journal_title
Acta neurobiologiae experimentalisauthors
Harutiunian-Kozak B,Dec K,Wróbel Asubject
Has Abstractpub_date
1974-01-01 00:00:00pages
127-43issue
1eissn
0065-1400issn
1689-0035journal_volume
34pub_type
杂志文章abstract::Computer techniques were employed to construct a respiratory control model in which the variables treated were programmed according to a series of mathematical equations, with the purpose of eliciting the relationship of V-PCO2 (minute ventilation-partial pressure of carbon dioxide) on a transient time basis. It was d...
journal_title:Acta neurobiologiae experimentalis
pub_type: 杂志文章
doi:
更新日期:1973-01-01 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
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journal_title:Acta neurobiologiae experimentalis
pub_type: 杂志文章
doi:
更新日期:1980-01-01 00:00:00
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更新日期:2010-01-01 00:00:00
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journal_title:Acta neurobiologiae experimentalis
pub_type: 杂志文章
doi:
更新日期:2008-01-01 00:00:00
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journal_title:Acta neurobiologiae experimentalis
pub_type: 杂志文章,评审
doi:
更新日期:1993-01-01 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
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journal_title:Acta neurobiologiae experimentalis
pub_type: 杂志文章
doi:
更新日期:1978-01-01 00:00:00
abstract::The interaction between kinins formed in central nervous system and acetylcholine was studied. Endogenous ACh in excess acted psychodepressively on the animal's behavior as evaluated with Lat's test. This effect was more intense in those rats in which the activity of kinin-forming enzymes in the nervous tissue had bee...
journal_title:Acta neurobiologiae experimentalis
pub_type: 杂志文章
doi:
更新日期:1975-01-01 00:00:00
abstract::During the first two postnatal weeks postural reflexes were either absent or abortive. First adult-like patterns of reactions were seen at the end of the 3rd week but they could be regularly elicited only by the 6th-9th week. ...
journal_title:Acta neurobiologiae experimentalis
pub_type: 杂志文章
doi:
更新日期:1983-01-01 00:00:00
abstract::The effects of injections of M- and N-cholinergic blocking agents into the antero-medial hypothalamus (HM) and the midbrain central gray (GC) on the aggressive behavior of cats, evoked by microinjections of carbachol into those areas, were investigated in chronic experiments. The influence of pharmacological suppressi...
journal_title:Acta neurobiologiae experimentalis
pub_type: 杂志文章
doi:
更新日期:1977-01-01 00:00:00
abstract::The effect of sphingosine on intracellular calcium signalling in glioma C6 cells was studied with Fura-2 video imaging technique. Sphingosine had a direct effect on changes in cytosolic Ca2+ concentration only when applied at high concentration of 100 microM, causing the cytosolic Ca2+ level to rise. However, at a muc...
journal_title:Acta neurobiologiae experimentalis
pub_type: 杂志文章
doi:
更新日期:1996-01-01 00:00:00
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journal_title:Acta neurobiologiae experimentalis
pub_type: 杂志文章
doi:
更新日期:2006-01-01 00:00:00
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journal_title:Acta neurobiologiae experimentalis
pub_type: 杂志文章
doi:
更新日期:1989-01-01 00:00:00
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pub_type: 杂志文章
doi:
更新日期:2019-01-01 00:00:00
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journal_title:Acta neurobiologiae experimentalis
pub_type: 杂志文章,评审
doi:
更新日期:2011-01-01 00:00:00
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journal_title:Acta neurobiologiae experimentalis
pub_type: 临床试验,杂志文章
doi:
更新日期:2007-01-01 00:00:00
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journal_title:Acta neurobiologiae experimentalis
pub_type: 杂志文章
doi:
更新日期:1984-01-01 00:00:00
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journal_title:Acta neurobiologiae experimentalis
pub_type: 杂志文章,评审
doi:
更新日期:2019-01-01 00:00:00
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journal_title:Acta neurobiologiae experimentalis
pub_type: 杂志文章
doi:
更新日期:1990-01-01 00:00:00
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journal_title:Acta neurobiologiae experimentalis
pub_type: 杂志文章
doi:
更新日期:1979-01-01 00:00:00
abstract::Depolarization of cultured astrocytes by KCl stimulated gamma-aminobutyric acid (GABA) release in a dose-dependent manner. At 60 mM KCl, the stimulatory effect was calcium- and sodium- independent, and was not altered by the presence of beta-alanine. The potassium-evoked GABA release was inhibited by furosemide and 4-...
journal_title:Acta neurobiologiae experimentalis
pub_type: 杂志文章
doi:
更新日期:1998-01-01 00:00:00
abstract::In this study we evaluated biochemical blood serum parameters and the association of Cyclin-dependent kinase 5 (CDK5) gene polymorphisms with the risk of Alzheimer's disease (AD) in the Polish population. We observed an elevated total cholesterol, low-density lipoproteins (LDL) and homocysteine levels and lower concen...
journal_title:Acta neurobiologiae experimentalis
pub_type: 杂志文章
doi:
更新日期:2012-01-01 00:00:00
abstract::Embedment-free electron microscopy (EFEM) is a new method which allows the visualisation of cytoskeleton in whole-mounted cells. In this study we employed EFEM to investigate the structure of cellular scaffolds in glioma C6 cell line. The cells were extracted with Triton X-100 that dissolves phospholipids in the membr...
journal_title:Acta neurobiologiae experimentalis
pub_type: 杂志文章
doi:
更新日期:2000-01-01 00:00:00
abstract::All myelinated fibres along the unbranched pant of the phrenic nerve were teased and measured at regular intervals. At the proximal level, the size frequency distribution is bimodal with peaks at 2 and 7 micrometers. Fibres in most size classes exhibit a slight progressive tapering along their unbranched course in the...
journal_title:Acta neurobiologiae experimentalis
pub_type: 杂志文章
doi:
更新日期:1974-01-01 00:00:00
abstract::New multichannel descriptors of EEG activity: complexity (omega), total power (zeta) and generalized frequency (phi) were applied to whole night sleep analysis in 11 healthy subjects. The values of omega and phi decreased systematically from waking to slow wave sleep, and increased systematically in consecutive NREM-R...
journal_title:Acta neurobiologiae experimentalis
pub_type: 临床试验,杂志文章
doi:
更新日期:1996-01-01 00:00:00
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journal_title:Acta neurobiologiae experimentalis
pub_type: 杂志文章,评审
doi:
更新日期:2003-01-01 00:00:00