Abstract:
:(1) Spontaneous barbiturate spindles were recorded from the primary and secondary somatosensory cortex. The recordings were concentrated to areas surrounding several reference loci. The recording sites producing the maximal response evoked by stimulation of an exposed nerve in a contralateral limb were used as reference loci. (2) Spindles recorded at various distances from the respective reference loci were cross-correlated to spindles developing simultaneously in the latter. High correlation coefficients, indicating a considerable degree of wave synchrony, were obtained between spindles in the reference locus and spindles recorded a few millimeters from this site. The correlation coefficients decreased with increasing interelectrode distance. A relatively sharp fall in the correlation coefficients was generally found 2-3 mm from the reference locus. Small amounts of sodium pentobarbital, given intravenously at intervals of 5 min, had no effect upon this pattern. (3) The change in the correlation coefficients was followed by a parallel change in the amplitude of the evoked potentials. The iso-correlation lines of spindle wave synchrony and the iso-amplitude lines of the evoked potentials had a similar distribution and extension for each particular reference locus. (4) Lateral spread of spindle waves in the cortex seems to be of minor importance, since a vertical lesion cutting the cortico-cortical fibres did not reduce the wave synchrony of the spindles recorded from either side of the lesion. (5) The majority of the spindles recorded in the close vicinity of a reference locus started simultaneously within +/- 0.1 sec. This pattern changed with increasing distance from the reference locus and 5.6 mm away only a fraction of the spindles started simultaneously. However, within the entire primary somatosensory cortex a small but significant coupling existed between onset of the spindles.
journal_name
Brain Resjournal_title
Brain researchauthors
Ganes Tdoi
10.1016/0006-8993(76)90984-7subject
Has Abstractpub_date
1976-01-09 00:00:00pages
11-22issue
1eissn
0006-8993issn
1872-6240pii
0006-8993(76)90984-7journal_volume
101pub_type
杂志文章相关文献
BRAIN RESEARCH文献大全abstract::The solubilized rat central nervous system (hypothalamic) nicotinic cholinergic receptor and the Torpedo nicotinic cholinergic receptors are immunologically similar and show greater than 60% immunologic cross-reactivity using a double-antibody technique. Antibodies to the Electrophorus and Torpedo receptors also decre...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(79)90700-5
更新日期:1979-12-14 00:00:00
abstract::Structures of the medial temporal lobes are recognized to play a central role in memory processing and to be the primary sites of deterioration in Alzheimer disease (AD). Mild cognitive impairment (MCI) represents potentially an intermediate state between normal aging and AD. Proton magnetic resonance spectroscopy (MR...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2003.11.074
更新日期:2004-04-02 00:00:00
abstract::The neuronal pathology caused by neonatal infection of rats with the PVC-211 murine leukemia virus (PVC-211 MuLV) and its underlying mechanisms are not well defined even though a loss of neurons and spongiform neurodegeneration has been reported to accompany the disease. Here we sought to identify sites of neurodegene...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2009.12.089
更新日期:2010-03-10 00:00:00
abstract::The effect of gamma-aminobutyric acid (GABA)receptor stimulation on norepinephrine (NE)-induced metabolism of polyphosphoinositides (PIPs) was studied in rat hippocampal slices. Inositol phosphates (IPs), PIPs, and phosphatidic acid were measured. NE induced formation of IPs and phosphatidic acid in a dose-dependent m...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(87)90701-3
更新日期:1987-05-12 00:00:00
abstract::The distribution of calretinin containing neurons examined by in situ hybridization mapping was compared with that obtained by immunocytochemistry in the brain of octopus. Results revealed a close correspondence between the two types of investigations. Western blot analysis disclosed a 29 kDa protein immunostained wit...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2006.11.056
更新日期:2007-02-09 00:00:00
abstract::This ERP study explores the brain's response to the manipulation of motor compatibility in action-related language. In Experiment 1 participants read sentences in which a protagonist performed two different manual actions either simultaneously or consecutively (e.g. While/after cleaning the wound he unrolled the banda...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2013.06.020
更新日期:2013-08-14 00:00:00
abstract::Hybridization histochemical and immunohistochemical methods were used to characterize the distribution of corticotropin-releasing factor (CRF) messenger RNA (mRNA) and peptide, respectively, in the central auditory system of the rat. Cell bodies expressing CRF mRNA and/or immunoreactivity (IR) were detected at each le...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(91)90571-c
更新日期:1991-04-26 00:00:00
abstract::Aquaporins (AQPs) are membrane proteins that facilitate water transport across biological membranes and are essential for the proper function of neural tissue. Although AQPs have been extensively studied in mammalian retina, their presence in lower vertebrate retina is less frequently characterized. AQP4 expressed in ...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2011.11.014
更新日期:2012-01-13 00:00:00
abstract::In intact guinea pigs a passive horizontal rotation of the body about the fixed head induces compensatory ocular movements (cervico-ocular reflex). When the static neck deviation is maintained, a significant ocular displacement is observed. In acutely hemilabyrinthectomized animals, static body deviation towards the l...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(84)90616-4
更新日期:1984-12-17 00:00:00
abstract::Altered expression of neurotrophins may contribute to the pathogenesis of schizophrenia. Several studies suggest sex steroid hormones may be involved in the regulation of brain-derived neurotrophic factor (BDNF) signaling, as well as the symptoms of schizophrenia. This study aimed to identify sex differences in BDNF-T...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2011.01.060
更新日期:2011-04-12 00:00:00
abstract::Arachidonic acid metabolism in primary cultures of astroglial cells prepared from cerebra of rat embryos was examined. Arachidonic acid was mainly metabolized through the lipoxygenase pathway and the major metabolites formed were 12-hydroxyeicosatetraenoic acid (12-HETE), 11-HETE and 15-HETE. By contrast, in C6 cells,...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(89)90152-2
更新日期:1989-08-07 00:00:00
abstract::In rats raised from birth under a regular dark-light cycle, retinal dopamine (DA) levels were low at 12 days, increased progressively and steeply at 16, 20, 30 and 60 days and peaked at about 75 days postnatally. Dark-rearing from birth suppressed the magnitude of the normal developmental pattern of DA concentrations ...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0165-3806(86)90293-2
更新日期:1986-05-01 00:00:00
abstract::Parkinson's disease (PD) is the second most common neurodegenerative disease worldwide. It is typically associated with motor symptoms originating from the degeneration of nigrostriatal dopamine (DA) neurons. Early stages of PD have been associated with an alteration in DA production in intestinal DAergic neurons alon...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2019.146460
更新日期:2019-12-15 00:00:00
abstract::We have examined, at the light microscope level, putative direct synaptic interconnections, via motor axon collaterals, between type-identified triceps surae alpha-motoneurons labeled by intracellular injection of HRP. The results indicate that monosynaptic recurrent contacts can occur between synergist motoneurons (i...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(84)90937-5
更新日期:1984-08-06 00:00:00
abstract::Circling training during rat striatum postnatal critical period (PN30 to 37 days) induces a life-lasting co-reduction of muscarinic acetylcholine receptors (mAChR) and dopamine D2 receptors (D2R) binding. Here, we evaluated the expression of D1R and D2R under similar experimental conditions. Trained rats showed a decr...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2004.01.050
更新日期:2004-04-09 00:00:00
abstract::Insulin has emerged as an important neuropeptide. Central actions of insulin appear to oppose those in the periphery. Insulin is transported across the blood-brain barrier (BBB) by a saturable transport system. The permeability of the BBB to insulin is altered by various events, but no studies exist that have examined...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/s0006-8993(00)03247-9
更新日期:2001-03-30 00:00:00
abstract::In the present studies, we have evaluated the effects of N-[4-(2-¿[(3-Chlorophenyl)methyl]amino¿ethyl)phenyl]-2-thiophenecarbo ximidamide dihydrochloride (ARL 17477) on recombinant human neuronal NOS (nNOS) and endothelial NOS (eNOS). We then carried out pharmacokinetic studies and measured cortical nitric oxide synth...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/s0006-8993(00)02471-9
更新日期:2000-07-21 00:00:00
abstract::Serotonin (5-HT) immunostained sections were analyzed using integrated optical density (IOD) measures obtained throughout the dorsal raphe nucleus (DRN) in Mongolian gerbils at selected times during a 12:12 h light:dark cycle. Substantial diurnal variation occurred in 5-HT neuronal staining density, with lowest and hi...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2004.11.053
更新日期:2005-02-09 00:00:00
abstract::Both enkephalin and 5-hydroxytryptamine (5-HT) have been implicated in neural mechanisms underlying the central control of respiration. In view of the role of the nuclei tractus solitarii (NTS) in respiratory regulation, we carried out a study in artificially ventilated, chloralose-anaesthetized cats of the effects of...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(85)91515-x
更新日期:1985-02-18 00:00:00
abstract::The organization of motor responses in the orbicularis oris muscle following the delivery of punctate mechanical inputs to vermilion skin of the lips was studied in a group of young infants, school-age children, and adults during periods of voluntary lip muscle activation. A specially designed multi-point array skin c...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(93)91425-r
更新日期:1993-10-01 00:00:00
abstract::Previous studies have found that the primary change in the brain of chronic alcoholics is a selective loss of white matter in cerebral hemispheres. It is unknown whether the loss of white matter is due to alcohol-induced degeneration of axons in white matter, and this hypothesis has never been tested. We used a newly ...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2004.09.035
更新日期:2004-12-17 00:00:00
abstract::The N400 is an event-related potential (ERP) component that is elicited by semantically meaningful stimuli; one of its defining characteristics is that it is amplified for sentence completions that are semantically unexpected or incongruous with the preceding context. Some prior reports using visual sentence reading p...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2010.07.099
更新日期:2010-10-08 00:00:00
abstract::Hamsters exhibited a circadian variation in metabolic activity determined by [14C]2-deoxyglucose uptake in the suprachiasmatic nuclei, as has been previously reported for rats. The 13-line ground squirrel, a diurnal rodent, did not show a circadian variation in metabolic activity. The data are consistent with the hypo...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(82)90626-6
更新日期:1982-01-28 00:00:00
abstract::Following a mild cortical impact injury delivered by a piston to the right sensorimotor cortex of the anesthetized rat, we evaluated mantle loss, neuronal changes, and fiber track degeneration by deOlmos silver stains up to 8 weeks after injury. Darkened neurons indicating damage (chromatolysis) occurred widely throug...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/s0006-8993(98)00107-3
更新日期:1998-05-25 00:00:00
abstract::In albino rats the superior colliculus was stimulated and evoked potentials were explored in the cerebellar hemisphere including the paramedian lobule, and crura I and II. Climbing fiber responses were identified in a strip (ca. 1 mm wide) in the medial region of crus II, extending to both folia a and b. In the tector...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(86)90304-5
更新日期:1986-07-16 00:00:00
abstract::The properties of 5 beta-reductase, 5 alpha-reductase and aromatase, 3 testosterone metabolizing enzymes, were studied in the quail brain by an in vitro incubation technique. The results describe the changes in time of metabolite production and the effects of temperature, enzyme and cofactor concentrations. The appare...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(84)91118-1
更新日期:1984-07-02 00:00:00
abstract::Multiple-unit activity (MUA) in the agranular medial prefrontal cortex (PFC) was recorded in conscious rabbits during a classical conditioning procedure involving repeated pairings of a 4-s tone conditioned stimulus (CS) with eye shock. Prior to behavioral training, significant tone-evoked increases in prefrontal MUA ...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(88)91435-7
更新日期:1988-02-23 00:00:00
abstract::Electrical stimulation of the dorsal hippocampal formation of the rat was employed to determine the effect of 1,25-dihydroxyvitamin D3 (1,25-(OH)2D3), the hormonal form of vitamin D, on induced seizure thresholds. Stereotaxic injection of 100 micrograms or 50 micrograms 1,25-dihydroxyvitamin D3 in 2 microliter propyle...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(84)91153-3
更新日期:1984-04-23 00:00:00
abstract::NMDA receptor activation leads to elevated Ca2+ in cultured rat cortical and retinal ganglion cell neurons. If excessive, this Ca2+ response is associated with delayed neurotoxicity. We used dantrolene and ionomycin to test if the Ca2+ response to NMDA was due to mobilization of intracellular Ca2+ stores rather than m...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(92)90183-a
更新日期:1992-12-11 00:00:00
abstract::Stellate ganglion block (SGB) is a blockade of sympathetic ganglia innervating the head and neck, and is known to function through vasodilation of the target region. However, the effectiveness of SGB in relieving cerebral vasospasm (CVS) through dilation of intracerebral vessels has not been evaluated. The aim of the ...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2014.08.012
更新日期:2014-10-17 00:00:00